diff --git a/report-3/rts10_rust/src/leds.rs b/report-3/rts10_rust/src/leds.rs
index 5eef33a..2dfad27 100644
--- a/report-3/rts10_rust/src/leds.rs
+++ b/report-3/rts10_rust/src/leds.rs
@@ -52,37 +52,44 @@ impl<'a, T: OutputPin> Toggle<T> for ToggleLed<'a, T> {
 pub struct Leds<'a,
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
     BP: OutputPin, BT: Toggle<BP>
 > {
     pub red: &'a mut RT,
     pub green: &'a mut GT,
+    pub orange: &'a mut OT,
     pub blue: &'a mut BT,
 
     // phantom data to convince rustc the generics RP, GP and BP are used.
     _r: PhantomData<RP>,
     _g: PhantomData<GP>,
+    _o: PhantomData<OP>,
     _b: PhantomData<BP>,
 }
 impl<'a,
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
     BP: OutputPin, BT: Toggle<BP>
-> Leds<'a, RP, RT, GP, GT, BP, BT> {
-    pub fn new(red: &'a mut RT, green: &'a mut GT, blue: &'a mut BT) -> Self {
+> Leds<'a, RP, RT, GP, GT, OP, OT, BP, BT> {
+    pub fn new(red: &'a mut RT, green: &'a mut GT, orange: &'a mut OT, blue: &'a mut BT) -> Self {
         Self {
             red,
             green,
+            orange,
             blue,
 
             _r: PhantomData,
             _g: PhantomData,
+            _o: PhantomData,
             _b: PhantomData,
         }
     }
 
-    pub fn set_all(&mut self, red: PinState, green: PinState, blue: PinState) {
+    pub fn set_all(&mut self, red: PinState, green: PinState, orange: PinState, blue: PinState) {
         let _ = self.red.set(red);
-        let _ = self.blue.set(blue);
+        let _ = self.orange.set(orange);
         let _ = self.green.set(green);
+        let _ = self.blue.set(blue);
     }
 }
diff --git a/report-3/rts10_rust/src/main.rs b/report-3/rts10_rust/src/main.rs
index 6d072fe..3e0549f 100644
--- a/report-3/rts10_rust/src/main.rs
+++ b/report-3/rts10_rust/src/main.rs
@@ -3,6 +3,7 @@
 #![no_main]
 #![no_std]
 
+use embedded_hal::digital::PinState;
 // Halt on panic
 use panic_halt as _; // panic handler
 
@@ -27,11 +28,16 @@ fn main() -> ! {
         //led pinnen uphalen
         let mut green_pin = &mut gpiod.pd12.into_push_pull_output();
         let mut red_pin = &mut gpiod.pd14.into_push_pull_output();
+        let mut orange_pin = &mut gpiod.pd13.into_push_pull_output();
         let mut blue_pin = &mut gpiod.pd15.into_push_pull_output();
         let mut green = ToggleLed::new(&mut green_pin).expect("faild to set green led");
         let mut red = ToggleLed::new(&mut red_pin).expect("faild to set red led");
+        let mut orange = ToggleLed::new(&mut orange_pin).expect("faild to set orange led");
         let mut blue = ToggleLed::new(&mut blue_pin).expect("faild to set blue led");
-        let mut leds = Leds::new(&mut red, &mut green, &mut blue);
+        let mut leds = Leds::new(&mut red, &mut green, &mut orange, &mut blue);
+        //user knop
+        let gpioa = dp.GPIOA.split();
+        let button = &mut gpioa.pa0.into_floating_input();
         //leds struct en state machine maken
         let mut state_machine = StateMachine::new(&mut leds);
 
@@ -41,9 +47,20 @@ fn main() -> ! {
 
         // Create a delay abstraction based on SysTick
         let mut delay = cp.SYST.delay(&clocks);
+        let mut button_high = button.is_high();
         loop {
             let _ = state_machine.second_passed();
-            delay.delay_ms(1000_u32);
+            for _ in 0..99 {
+                if button_high != button.is_high() {
+                    button_high = button.is_high();
+                    if button_high {
+                        state_machine.button_press();
+                    } else {
+                        state_machine.button_release();
+                    }
+                }
+                delay.delay_ms(10_u32);
+            }
         }
     }
 
diff --git a/report-3/rts10_rust/src/state_machine.rs b/report-3/rts10_rust/src/state_machine.rs
index dd12658..e240870 100644
--- a/report-3/rts10_rust/src/state_machine.rs
+++ b/report-3/rts10_rust/src/state_machine.rs
@@ -4,44 +4,67 @@ use crate::leds::{Leds, Toggle};
 
 enum States {
     Red(StateRed),
-    Blue(StateBlue),
+    Orange(StateOrange),
     Green(StateGreen),
+    BridgeOpen(StateBridgeOpen)
 }
 
 trait State<
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
     BP: OutputPin, BT: Toggle<BP>
 > {
-    fn new(leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> Self;
-    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> States;
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> Self;
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States;
+    fn button_press(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States;
+    fn button_release(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States;
 }
 
 pub struct StateMachine<'a,
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
     BP: OutputPin, BT: Toggle<BP>
 > {
     state: States,
-    leds: &'a mut Leds<'a, RP, RT, GP, GT, BP, BT>,
+    leds: &'a mut Leds<'a, RP, RT, GP, GT, OP, OT, BP, BT>
 }
 impl<'a,
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
     BP: OutputPin, BT: Toggle<BP>
-> StateMachine<'a, RP, RT, GP, GT, BP, BT> 
+> StateMachine<'a, RP, RT, GP, GT, OP, OT, BP, BT> 
 {
-    pub fn new(leds: &'a mut Leds<'a, RP, RT, GP, GT, BP, BT>) -> Self {
+    pub fn new(leds: &'a mut Leds<'a, RP, RT, GP, GT, OP, OT, BP, BT>) -> Self {
         Self {
             state: States::Red(StateRed::new(leds)),
-            leds,
+            leds
         }
     }
     pub fn second_passed(&mut self) {
         self.state = match &self.state {
             States::Red(state) => state.second_passed(self.leds),
-            States::Blue(state) => state.second_passed(self.leds),
+            States::Orange(state) => state.second_passed(self.leds),
             States::Green(state) => state.second_passed(self.leds),
+            States::BridgeOpen(state) => state.second_passed(self.leds),
+        }
+    }
+    pub fn button_press(&mut self) {
+        self.state = match &self.state {
+            States::Red(state) => state.button_press(self.leds),
+            States::Orange(state) => state.button_press(self.leds),
+            States::Green(state) => state.button_press(self.leds),
+            States::BridgeOpen(state) => state.button_press(self.leds),
+        }
+    }
+    pub fn button_release(&mut self) {
+        self.state = match &self.state {
+            States::Red(state) => state.button_release(self.leds),
+            States::Orange(state) => state.button_release(self.leds),
+            States::Green(state) => state.button_release(self.leds),
+            States::BridgeOpen(state) => state.button_release(self.leds),
         }
     }
 }
@@ -56,15 +79,16 @@ struct StateRed {
 impl<
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
     BP: OutputPin, BT: Toggle<BP>
-> State<RP, RT, GP, GT, BP, BT> for StateRed {
-    fn new(leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> Self {
-        leds.set_all(PinState::High, PinState::Low, PinState::Low);
+> State<RP, RT, GP, GT, OP, OT, BP, BT> for StateRed {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> Self {
+        leds.set_all(PinState::High, PinState::Low, PinState::Low, PinState::Low);
         Self {
             time_passed: 0
         }
     }
-    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> States {
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
         if self.time_passed + 1 >= 4 {
             States::Green(StateGreen::new(leds))
         } else {
@@ -73,6 +97,15 @@ impl<
             })
         }
     }
+
+    fn button_press(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::BridgeOpen(StateBridgeOpen::new(leds))
+    }
+    fn button_release(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Red(Self {
+            time_passed: self.time_passed
+        })
+    }
 }
 
 // ####################################################
@@ -85,40 +118,107 @@ struct StateGreen {
 impl<
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
     BP: OutputPin, BT: Toggle<BP>
-> State<RP, RT, GP, GT, BP, BT> for StateGreen {
-    fn new(leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> Self {
-        leds.set_all(PinState::Low, PinState::High, PinState::Low);
+> State<RP, RT, GP, GT, OP, OT, BP, BT> for StateGreen {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> Self {
+        leds.set_all(PinState::Low, PinState::High, PinState::Low, PinState::Low);
         Self {
             time_passed: 0
         }
     }
-    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> States {
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
         if self.time_passed + 1 >= 3 {
-            States::Blue(StateBlue::new(leds))
+            States::Orange(StateOrange::new(leds))
         } else {
             States::Green(Self {
                 time_passed: self.time_passed + 1
             })
         }
     }
+
+    fn button_press(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Green(Self {
+            time_passed: self.time_passed
+        })
+    }
+    fn button_release(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Green(Self {
+            time_passed: self.time_passed
+        })
+    }
 }
 
 // ####################################################
-// ## BLUE ############################################
+// ## ORANGE ############################################
 // ####################################################
 
-struct StateBlue {}
+struct StateOrange {}
 impl<
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
     BP: OutputPin, BT: Toggle<BP>
-> State<RP, RT, GP, GT, BP, BT> for StateBlue {
-    fn new(leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> Self {
-        leds.set_all(PinState::Low, PinState::Low, PinState::High);
+> State<RP, RT, GP, GT, OP, OT, BP, BT> for StateOrange {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> Self {
+        leds.set_all(PinState::Low, PinState::Low, PinState::High, PinState::Low);
         Self {}
     }
-    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> States {
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Red(StateRed::new(leds))
+    }
+
+    fn button_press(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Orange(Self {})
+    }
+    fn button_release(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Orange(Self {})
+    }
+}
+
+// ####################################################
+// ## BRIDGE_OPEN #####################################
+// ####################################################
+
+struct StateBridgeOpen {
+    time_passed: u32
+}
+impl<
+    RP: OutputPin, RT: Toggle<RP>,
+    GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
+    BP: OutputPin, BT: Toggle<BP>
+> State<RP, RT, GP, GT, OP, OT, BP, BT> for StateBridgeOpen {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> Self {
+        leds.set_all(PinState::Low, PinState::Low, PinState::Low, PinState::High);
+        Self {
+            time_passed: 0
+        }
+    }
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        if self.time_passed + 1 == 2 {
+            let _ = leds.blue.low();
+            States::BridgeOpen(Self {
+                time_passed: self.time_passed + 1
+            })
+        } else if self.time_passed + 1 >= 3 {
+            let _ = leds.blue.high();
+            States::BridgeOpen(Self {
+                time_passed: 0
+            })
+        } else {
+            States::BridgeOpen(Self {
+                time_passed: self.time_passed + 1
+            })
+        }
+    }
+
+    fn button_press(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::BridgeOpen(Self {
+            time_passed: self.time_passed
+        })
+    }
+    fn button_release(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
         States::Red(StateRed::new(leds))
     }
 }
diff --git a/report-3/rust_report.md b/report-3/rust_report.md
index 4cd8ab5..597efdf 100644
--- a/report-3/rust_report.md
+++ b/report-3/rust_report.md
@@ -14,46 +14,46 @@ auther:
 
 > Maak een toestandsmachine volgens de State Pattern methode zoals beschreven in
 > het boek. Er zijn drie toestanden: rood, groen en oranje. Tussen de toestanden
-> wordt geschakeld op basis van tijd: respectievelijk $4s&, &3s& en &1s&.
+> wordt geschakeld op basis van tijd: respectievelijk $4s$, $3s$ en $1s$.
 
-De State Pattern methode in rust maakt gebuik van structs en traits. Om dit
-mognelijk te maken moet er een struct zijn die de leds kan aansturen. Hiervoor
+De State Pattern methode in rust maakt gebruik van structs en traits. Om dit
+mogelijk te maken moet er een struct zijn die de leds kan aansturen. Hiervoor
 is het de Pin struct van de stm32f4xx-hal nodig in in struct. Om mijn
 implementatie makkelijker onderhoudbaar te maken worden de Pin structs
 doorgegeven aan de state machine struct. Hiervoor is een triad nodig die
-functions voor het aanpassen van de led status beschijft. De `toggle` functie
-die gebruikt wordt in het voorbeeld is niet geimplementeerd via een trait.
+functions voor het aanpassen van de led status beschrijft. De `toggle` functie
+die gebruikt wordt in het voorbeeld is niet geïmplementeerd via een trait.
 Deze kan dus niet gebruikt worden zonder de hal aan te passen. In de
-documentatie van de pin struct implementeerd die de OutputPin trait van de
-embedded_hal crate^[https://docs.rs/stm32f4xx-hal/0.22.0/stm32f4xx_hal/gpio/struct.Pin.html#impl-OutputPin-for-Pin%3CP,+N,+Output%3CMODE%3E%3E-1]. Dus deze crate is toegevoed aan het project zodat hier
+documentatie van de pin struct implementeert die de OutputPin trait van de
+embedded_hal crate^[https://docs.rs/stm32f4xx-hal/0.22.0/stm32f4xx_hal/gpio/struct.Pin.html#impl-OutputPin-for-Pin%3CP,+N,+Output%3CMODE%3E%3E-1]. Dus deze crate is toegevoegd aan het project zodat hier
 gebruik van gemaakt kan worden.
 
-Om te testen of dit werkt is er een stuct aangemaakt met een simple toggle
-functie en de embeded_hal geimporteerd. Dit is gedaan met de volgende code:
+Om te testen of dit werkt is er een struct aangemaakt met een simple toggle
+functie en de embeded_hal geïmporteerd. Dit is gedaan met de volgende code:
 
 ```rust
 use embedded_hal::digital::{ErrorType as DigitalErrorType, OutputPin, PinState};
 
-struct Leds<'a, Red: OutputPin, Green: OutputPin, Blue: OutputPin> {
+struct Leds<'a, Red: OutputPin, Green: OutputPin, Orange: OutputPin> {
     red: &'a mut Red,
     red_state: PinState,
     green: &'a mut Green,
     green_state: PinState,
-    blue: &'a mut Blue,
-    blue_state: PinState,
+    orange: &'a mut Orange,
+    orange_state: PinState,
 }
-impl<'a, Red: OutputPin, Green: OutputPin, Blue: OutputPin> Leds<'a, Red, Green, Blue> {
-    pub fn new(red: &'a mut Red, green: &'a mut Green, blue: &'a mut Blue) -> Self {
+impl<'a, Red: OutputPin, Green: OutputPin, Orange: OutputPin> Leds<'a, Red, Green, Orange> {
+    pub fn new(red: &'a mut Red, green: &'a mut Green, orange: &'a mut Orange) -> Self {
         let _  = red.set_low();
         let _  = green.set_low();
-        let _  = blue.set_low();
+        let _  = orange.set_low();
         Self {
             red,
             red_state: PinState::Low,
             green,
             green_state: PinState::Low,
-            blue,
-            blue_state: PinState::Low,
+            orange,
+            orange_state: PinState::Low,
         }
     }
 
@@ -82,9 +82,9 @@ fn main() -> ! {
         // create structs for pins
         let mut green = gpiod.pd12.into_push_pull_output();
         let mut red = gpiod.pd14.into_push_pull_output();
-        let mut blue = gpiod.pd15.into_push_pull_output();
+        let mut orange = gpiod.pd13.into_push_pull_output();
         // create leds struct
-        let mut leds = Leds::new(&mut red, &mut green, &mut blue);
+        let mut leds = Leds::new(&mut red, &mut green, &mut orange);
 
         //Klok instellen
         let rcc = dp.RCC.constrain();
@@ -124,34 +124,34 @@ use crate::leds::{Leds, Toggle};
 
 enum States {
     Red(StateRed),
-    Blue(StateBlue),
+    Orange(StateOrange),
     Green(StateGreen),
 }
 
 trait State<
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
-    BP: OutputPin, BT: Toggle<BP>
+    OP: OutputPin, OT: Toggle<OP>
 > {
-    fn new(leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> Self;
-    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> States;
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT>) -> Self;
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT>) -> States;
 }
 
 pub struct StateMachine<'a,
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
-    BP: OutputPin, BT: Toggle<BP>
+    OP: OutputPin, OT: Toggle<OP>
 > {
     state: States,
-    leds: &'a mut Leds<'a, RP, RT, GP, GT, BP, BT>,
+    leds: &'a mut Leds<'a, RP, RT, GP, GT, OP, OT>,
 }
 impl<'a,
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
-    BP: OutputPin, BT: Toggle<BP>
-> StateMachine<'a, RP, RT, GP, GT, BP, BT> 
+    OP: OutputPin, OT: Toggle<OP>
+> StateMachine<'a, RP, RT, GP, GT, OP, OT> 
 {
-    pub fn new(leds: &'a mut Leds<'a, RP, RT, GP, GT, BP, BT>) -> Self {
+    pub fn new(leds: &'a mut Leds<'a, RP, RT, GP, GT, OP, OT>) -> Self {
         Self {
             state: States::Red(StateRed::new(leds)),
             leds,
@@ -160,7 +160,7 @@ impl<'a,
     pub fn second_passed(&mut self) {
         self.state = match &self.state {
             States::Red(state) => state.second_passed(self.leds),
-            States::Blue(state) => state.second_passed(self.leds),
+            States::Orange(state) => state.second_passed(self.leds),
             States::Green(state) => state.second_passed(self.leds),
         }
     }
@@ -238,27 +238,27 @@ Met deze workaround toegepast de `struct Leds` is als volgt geïmplementeerd in
 pub struct Leds<'a,
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
-    BP: OutputPin, BT: Toggle<BP>
+    OP: OutputPin, OT: Toggle<OP>
 > {
     pub red: &'a mut RT,
     pub green: &'a mut GT,
-    pub blue: &'a mut BT,
+    pub orange: &'a mut OT,
 
-    // phantom data to convince rustc the generics RP, GP and BP are used.
+    // phantom data to convince rustc the generics RP, GP and OP are used.
     _r: PhantomData<RP>,
     _g: PhantomData<GP>,
-    _b: PhantomData<BP>,
+    _b: PhantomData<OP>,
 }
 impl<'a,
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
-    BP: OutputPin, BT: Toggle<BP>
-> Leds<'a, RP, RT, GP, GT, BP, BT> {
-    pub fn new(red: &'a mut RT, green: &'a mut GT, blue: &'a mut BT) -> Self {
+    OP: OutputPin, OT: Toggle<OP>
+> Leds<'a, RP, RT, GP, GT, OP, OT> {
+    pub fn new(red: &'a mut RT, green: &'a mut GT, orange: &'a mut OT) -> Self {
         Self {
             red,
             green,
-            blue,
+            orange,
 
             _r: PhantomData,
             _g: PhantomData,
@@ -266,9 +266,9 @@ impl<'a,
         }
     }
 
-    pub fn set_all(&mut self, red: PinState, green: PinState, blue: PinState) {
+    pub fn set_all(&mut self, red: PinState, green: PinState, orange: PinState) {
         let _ = self.red.set(red);
-        let _ = self.blue.set(blue);
+        let _ = self.orange.set(orange);
         let _ = self.green.set(green);
     }
 }
@@ -291,15 +291,15 @@ struct StateRed {
 impl<
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
-    BP: OutputPin, BT: Toggle<BP>
-> State<RP, RT, GP, GT, BP, BT> for StateRed {
-    fn new(leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> Self {
+    OP: OutputPin, OT: Toggle<OP>
+> State<RP, RT, GP, GT, OP, OT> for StateRed {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT>) -> Self {
         leds.set_all(PinState::High, PinState::Low, PinState::Low);
         Self {
             time_passed: 0
         }
     }
-    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> States {
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT>) -> States {
         if self.time_passed + 1 >= 4 {
             States::Green(StateGreen::new(leds))
         } else {
@@ -320,17 +320,17 @@ struct StateGreen {
 impl<
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
-    BP: OutputPin, BT: Toggle<BP>
-> State<RP, RT, GP, GT, BP, BT> for StateGreen {
-    fn new(leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> Self {
+    OP: OutputPin, OT: Toggle<OP>
+> State<RP, RT, GP, GT, OP, OT> for StateGreen {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT>) -> Self {
         leds.set_all(PinState::Low, PinState::High, PinState::Low);
         Self {
             time_passed: 0
         }
     }
-    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> States {
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT>) -> States {
         if self.time_passed + 1 >= 3 {
-            States::Blue(StateBlue::new(leds))
+            States::Orange(StateOrange::new(leds))
         } else {
             States::Green(Self {
                 time_passed: self.time_passed + 1
@@ -340,20 +340,20 @@ impl<
 }
 
 // ####################################################
-// ## BLUE ############################################
+// ## ORANGE ############################################
 // ####################################################
 
-struct StateBlue {}
+struct StateOrange {}
 impl<
     RP: OutputPin, RT: Toggle<RP>,
     GP: OutputPin, GT: Toggle<GP>,
-    BP: OutputPin, BT: Toggle<BP>
-> State<RP, RT, GP, GT, BP, BT> for StateBlue {
-    fn new(leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> Self {
+    OP: OutputPin, OT: Toggle<OP>
+> State<RP, RT, GP, GT, OP, OT> for StateOrange {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT>) -> Self {
         leds.set_all(PinState::Low, PinState::Low, PinState::High);
         Self {}
     }
-    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, BP, BT>) -> States {
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT>) -> States {
         States::Red(StateRed::new(leds))
     }
 }
@@ -392,11 +392,11 @@ fn main() -> ! {
         //led pinnen uphalen
         let mut green_pin = &mut gpiod.pd12.into_push_pull_output();
         let mut red_pin = &mut gpiod.pd14.into_push_pull_output();
-        let mut blue_pin = &mut gpiod.pd15.into_push_pull_output();
+        let mut orange_pin = &mut gpiod.pd15.into_push_pull_output();
         let mut green = ToggleLed::new(&mut green_pin).expect("faild to set green led");
         let mut red = ToggleLed::new(&mut red_pin).expect("faild to set red led");
-        let mut blue = ToggleLed::new(&mut blue_pin).expect("faild to set blue led");
-        let mut leds = Leds::new(&mut red, &mut green, &mut blue);
+        let mut orange = ToggleLed::new(&mut orange_pin).expect("faild to set orange led");
+        let mut leds = Leds::new(&mut red, &mut green, &mut orange);
         //leds struct en state machine maken
         let mut state_machine = StateMachine::new(&mut leds);
 
@@ -415,3 +415,424 @@ fn main() -> ! {
     loop {}
 }
 ```
+
+## opdracht 8.3
+
+> Voeg nu een toestand toe waarbij de blauwe “User” knop aangeeft dat de brug open wilt gaan. Vanuit de rode toestand moet dan naar een andere toestand (brug-open?) worden gesprongen. Wanneer de knop wordt losgelaten springt brug-open naar de rode toestand. In de brug-open-toestand moet de rode led knipperen. Dit knipperen moet elke met een periodetijd van $2s$ ($2s$ aan, $1s$ uit).
+
+Om deze aanpassing te doen motten de volgende onderdelen aangepast worden:
+
+- blue led initialiseren en toevoegen aan `struct Leds` en alle plekken waar deze gebuikt wordt
+- knop initialiseren
+- functies toevoegen voor de knop `trait State` en alle implementaties ervan
+- de state `BridgeOpen` toevoegen aan:
+	- `enum States`
+	- de tussen functies in `struct StateMachine`
+	- nieuwe `struct StateBridgeOpen`
+- uitlezen van de knop een aanroepen van de nieuwe functies in `trait State`
+- de `struct StateRed` aanpassen voor de nieuwe logica
+- logica toevoegen aan `struct StateBridgeOpen`
+
+### resultaat
+
+#### leds.rs
+
+```rust
+use core::marker::PhantomData;
+
+use embedded_hal::digital::{OutputPin, PinState};
+
+pub trait Toggle<T: OutputPin> {
+    fn toggle(&mut self) -> Result<(), T::Error>;
+    fn set(&mut self, state: PinState) -> Result<(), T::Error>;
+    fn get(&self) -> PinState;
+
+    fn high(&mut self) -> Result<(), T::Error> {
+        self.set(PinState::High)
+    }
+    fn low(&mut self) -> Result<(), T::Error> {
+        self.set(PinState::Low)
+    }
+}
+
+pub struct ToggleLed<'a, T: OutputPin> {
+    pin: &'a mut T,
+    state: PinState
+}
+impl<'a, T: OutputPin> ToggleLed<'a, T> {
+    pub fn new(pin: &'a mut T) -> Result<Self, T::Error> {
+        match pin.set_low() {
+            Ok(_) => Ok(Self { pin, state: PinState::Low }),
+            Err(e) => Err(e)
+        }
+    }
+}
+impl<'a, T: OutputPin> Toggle<T> for ToggleLed<'a, T> {
+    fn toggle(&mut self) -> Result<(), T::Error> {
+        if self.state == PinState::High {
+            self.state = PinState::Low;
+        } else {
+            self.state = PinState::Low;
+        }
+        self.pin.set_state(self.state)
+    }
+    fn set(&mut self, state: PinState) -> Result<(), T::Error> {
+        if state != self.state {
+            self.state = state;
+            self.pin.set_state(self.state)
+        } else {
+            Ok(())
+        }
+    }
+    fn get(&self) -> PinState {
+        self.state
+    }
+}
+
+pub struct Leds<'a,
+    RP: OutputPin, RT: Toggle<RP>,
+    GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
+    BP: OutputPin, BT: Toggle<BP>
+> {
+    pub red: &'a mut RT,
+    pub green: &'a mut GT,
+    pub orange: &'a mut OT,
+    pub blue: &'a mut BT,
+
+    // phantom data to convince rustc the generics RP, GP and BP are used.
+    _r: PhantomData<RP>,
+    _g: PhantomData<GP>,
+    _o: PhantomData<OP>,
+    _b: PhantomData<BP>,
+}
+impl<'a,
+    RP: OutputPin, RT: Toggle<RP>,
+    GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
+    BP: OutputPin, BT: Toggle<BP>
+> Leds<'a, RP, RT, GP, GT, OP, OT, BP, BT> {
+    pub fn new(red: &'a mut RT, green: &'a mut GT, orange: &'a mut OT, blue: &'a mut BT) -> Self {
+        Self {
+            red,
+            green,
+            orange,
+            blue,
+
+            _r: PhantomData,
+            _g: PhantomData,
+            _o: PhantomData,
+            _b: PhantomData,
+        }
+    }
+
+    pub fn set_all(&mut self, red: PinState, green: PinState, orange: PinState, blue: PinState) {
+        let _ = self.red.set(red);
+        let _ = self.orange.set(orange);
+        let _ = self.green.set(green);
+        let _ = self.blue.set(blue);
+    }
+}
+```
+
+#### state_machine.rs
+
+```rust
+use embedded_hal::digital::{OutputPin, PinState};
+
+use crate::leds::{Leds, Toggle};
+
+enum States {
+    Red(StateRed),
+    Orange(StateOrange),
+    Green(StateGreen),
+    BridgeOpen(StateBridgeOpen)
+}
+
+trait State<
+    RP: OutputPin, RT: Toggle<RP>,
+    GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
+    BP: OutputPin, BT: Toggle<BP>
+> {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> Self;
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States;
+    fn button_press(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States;
+    fn button_release(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States;
+}
+
+pub struct StateMachine<'a,
+    RP: OutputPin, RT: Toggle<RP>,
+    GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
+    BP: OutputPin, BT: Toggle<BP>
+> {
+    state: States,
+    leds: &'a mut Leds<'a, RP, RT, GP, GT, OP, OT, BP, BT>
+}
+impl<'a,
+    RP: OutputPin, RT: Toggle<RP>,
+    GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
+    BP: OutputPin, BT: Toggle<BP>
+> StateMachine<'a, RP, RT, GP, GT, OP, OT, BP, BT> 
+{
+    pub fn new(leds: &'a mut Leds<'a, RP, RT, GP, GT, OP, OT, BP, BT>) -> Self {
+        Self {
+            state: States::Red(StateRed::new(leds)),
+            leds
+        }
+    }
+    pub fn second_passed(&mut self) {
+        self.state = match &self.state {
+            States::Red(state) => state.second_passed(self.leds),
+            States::Orange(state) => state.second_passed(self.leds),
+            States::Green(state) => state.second_passed(self.leds),
+            States::BridgeOpen(state) => state.second_passed(self.leds),
+        }
+    }
+    pub fn button_press(&mut self) {
+        self.state = match &self.state {
+            States::Red(state) => state.button_press(self.leds),
+            States::Orange(state) => state.button_press(self.leds),
+            States::Green(state) => state.button_press(self.leds),
+            States::BridgeOpen(state) => state.button_press(self.leds),
+        }
+    }
+    pub fn button_release(&mut self) {
+        self.state = match &self.state {
+            States::Red(state) => state.button_release(self.leds),
+            States::Orange(state) => state.button_release(self.leds),
+            States::Green(state) => state.button_release(self.leds),
+            States::BridgeOpen(state) => state.button_release(self.leds),
+        }
+    }
+}
+
+// ####################################################
+// ## RED #############################################
+// ####################################################
+
+struct StateRed {
+    time_passed: u32
+}
+impl<
+    RP: OutputPin, RT: Toggle<RP>,
+    GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
+    BP: OutputPin, BT: Toggle<BP>
+> State<RP, RT, GP, GT, OP, OT, BP, BT> for StateRed {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> Self {
+        leds.set_all(PinState::High, PinState::Low, PinState::Low, PinState::Low);
+        Self {
+            time_passed: 0
+        }
+    }
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        if self.time_passed + 1 >= 4 {
+            States::Green(StateGreen::new(leds))
+        } else {
+            States::Red(Self {
+                time_passed: self.time_passed + 1
+            })
+        }
+    }
+
+    fn button_press(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::BridgeOpen(StateBridgeOpen::new(leds))
+    }
+    fn button_release(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Red(Self {
+            time_passed: self.time_passed
+        })
+    }
+}
+
+// ####################################################
+// ## GREEN ###########################################
+// ####################################################
+
+struct StateGreen {
+    time_passed: u32
+}
+impl<
+    RP: OutputPin, RT: Toggle<RP>,
+    GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
+    BP: OutputPin, BT: Toggle<BP>
+> State<RP, RT, GP, GT, OP, OT, BP, BT> for StateGreen {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> Self {
+        leds.set_all(PinState::Low, PinState::High, PinState::Low, PinState::Low);
+        Self {
+            time_passed: 0
+        }
+    }
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        if self.time_passed + 1 >= 3 {
+            States::Orange(StateOrange::new(leds))
+        } else {
+            States::Green(Self {
+                time_passed: self.time_passed + 1
+            })
+        }
+    }
+
+    fn button_press(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Green(Self {
+            time_passed: self.time_passed
+        })
+    }
+    fn button_release(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Green(Self {
+            time_passed: self.time_passed
+        })
+    }
+}
+
+// ####################################################
+// ## ORANGE ############################################
+// ####################################################
+
+struct StateOrange {}
+impl<
+    RP: OutputPin, RT: Toggle<RP>,
+    GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
+    BP: OutputPin, BT: Toggle<BP>
+> State<RP, RT, GP, GT, OP, OT, BP, BT> for StateOrange {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> Self {
+        leds.set_all(PinState::Low, PinState::Low, PinState::High, PinState::Low);
+        Self {}
+    }
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Red(StateRed::new(leds))
+    }
+
+    fn button_press(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Orange(Self {})
+    }
+    fn button_release(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Orange(Self {})
+    }
+}
+
+// ####################################################
+// ## BRIDGE_OPEN #####################################
+// ####################################################
+
+struct StateBridgeOpen {
+    time_passed: u32
+}
+impl<
+    RP: OutputPin, RT: Toggle<RP>,
+    GP: OutputPin, GT: Toggle<GP>,
+    OP: OutputPin, OT: Toggle<OP>,
+    BP: OutputPin, BT: Toggle<BP>
+> State<RP, RT, GP, GT, OP, OT, BP, BT> for StateBridgeOpen {
+    fn new(leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> Self {
+        leds.set_all(PinState::Low, PinState::Low, PinState::Low, PinState::High);
+        Self {
+            time_passed: 0
+        }
+    }
+    fn second_passed(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        if self.time_passed + 1 == 2 {
+            let _ = leds.blue.low();
+            States::BridgeOpen(Self {
+                time_passed: self.time_passed + 1
+            })
+        } else if self.time_passed + 1 >= 3 {
+            let _ = leds.blue.high();
+            States::BridgeOpen(Self {
+                time_passed: 0
+            })
+        } else {
+            States::BridgeOpen(Self {
+                time_passed: self.time_passed + 1
+            })
+        }
+    }
+
+    fn button_press(&self, _leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::BridgeOpen(Self {
+            time_passed: self.time_passed
+        })
+    }
+    fn button_release(&self, leds: &mut Leds<RP, RT, GP, GT, OP, OT, BP, BT>) -> States {
+        States::Red(StateRed::new(leds))
+    }
+}
+```
+
+#### main.rs
+
+```rust
+#![deny(unsafe_code)]
+#![allow(clippy::empty_loop)]
+#![no_main]
+#![no_std]
+
+use embedded_hal::digital::PinState;
+// Halt on panic
+use panic_halt as _; // panic handler
+
+use cortex_m_rt::entry;
+use stm32f4xx_hal::{self as hal};
+
+use crate::hal::{pac, prelude::*};
+
+mod leds;
+use crate::leds::{Leds, ToggleLed};
+mod state_machine;
+use crate::state_machine::StateMachine;
+
+#[entry]
+fn main() -> ! {
+    if let (Some(dp), Some(cp)) = (
+        pac::Peripherals::take(),
+        cortex_m::peripheral::Peripherals::take(),
+    ) {
+        //GPIOD ophalen
+        let gpiod = dp.GPIOD.split();
+        //led pinnen uphalen
+        let mut green_pin = &mut gpiod.pd12.into_push_pull_output();
+        let mut red_pin = &mut gpiod.pd14.into_push_pull_output();
+        let mut orange_pin = &mut gpiod.pd13.into_push_pull_output();
+        let mut blue_pin = &mut gpiod.pd15.into_push_pull_output();
+        let mut green = ToggleLed::new(&mut green_pin).expect("faild to set green led");
+        let mut red = ToggleLed::new(&mut red_pin).expect("faild to set red led");
+        let mut orange = ToggleLed::new(&mut orange_pin).expect("faild to set orange led");
+        let mut blue = ToggleLed::new(&mut blue_pin).expect("faild to set blue led");
+        let mut leds = Leds::new(&mut red, &mut green, &mut orange, &mut blue);
+        //user knop
+        let gpioa = dp.GPIOA.split();
+        let button = &mut gpioa.pa0.into_floating_input();
+        //leds struct en state machine maken
+        let mut state_machine = StateMachine::new(&mut leds);
+
+        //Klok instellen
+        let rcc = dp.RCC.constrain();
+        let clocks = rcc.cfgr.sysclk(48.MHz()).freeze();
+
+        // Create a delay abstraction based on SysTick
+        let mut delay = cp.SYST.delay(&clocks);
+        let mut button_high = button.is_high();
+        loop {
+            let _ = state_machine.second_passed();
+            for _ in 0..99 {
+                if button_high != button.is_high() {
+                    button_high = button.is_high();
+                    if button_high {
+                        state_machine.button_press();
+                    } else {
+                        state_machine.button_release();
+                    }
+                }
+                delay.delay_ms(10_u32);
+            }
+        }
+    }
+
+    loop {}
+}
+```
\ No newline at end of file