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rp2040_projects/i2c/pa1010d_i2c
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Graham Sanderson 6e647c6f26
Additional examples for specific h/w by our interns (#171) 
adc/microphone_adc - Read analog values from a microphone and plot the measured sound amplitude.
i2c/bmp280_i2c - Read and convert temperature and pressure data from a BMP280 sensor, attached to an I2C bus.
i2c/lis3dh_i2c - Read acceleration and temperature value from a LIS3DH sensor via I2C
i2c/mcp9808_i2c - Read temperature, set limits and raise alerts when limits are surpassed.
i2c/mma8451_i2c - Read acceleration from a MMA8451 accelerometer and set range and precision for the data.
i2c/mpl3115a2_i2c - Interface with an MPL3115A2 altimeter, exploring interrupts and advanced board features, via I2C.
i2c/oled_i2c - Convert and display a bitmap on a 128x32 SSD1306-driven OLED display
i2c/pa1010d_i2c - Read GPS location data, parse and display data via I2C.
i2c/pcf8523_i2c - Read time and date values from a real time clock. Set current time and alarms on it.
uart/lcd_uart - Display text and symbols on a 16x02 RGB LCD display via UART
2021-10-25 12:30:57 -05:00
..
CMakeLists.txt
Additional examples for specific h/w by our interns (#171)
2021-10-25 12:30:57 -05:00
pa1010d_i2c.c
Additional examples for specific h/w by our interns (#171)
2021-10-25 12:30:57 -05:00
pa1010d_i2c.fzz
Additional examples for specific h/w by our interns (#171)
2021-10-25 12:30:57 -05:00
pa1010d_i2c.png
Additional examples for specific h/w by our interns (#171)
2021-10-25 12:30:57 -05:00
README.adoc
Additional examples for specific h/w by our interns (#171)
2021-10-25 12:30:57 -05:00

README.adoc 

= Attaching a PA1010D Mini GPS module via I2C

This example code shows how to interface the Raspberry Pi Pico to the PA1010D Mini GPS module
======
This allows you read basic location and time data from the Recommended Minimum Specific GNSS Sentence (GNRMC protocol) and displays it in a user-friendly format. The datasheet for the module can be found on https://cdn-learn.adafruit.com/assets/assets/000/084/295/original/CD_PA1010D_Datasheet_v.03.pdf?1573833002. The output sentence is read and parsed to split the data fields into a 2D character array, which are then individually printed out. The commands to use different protocols and change settings are found on https://www.sparkfun.com/datasheets/GPS/Modules/PMTK_Protocol.pdf. Additional protocols can be used by editing the init_command array. 
======
[NOTE]
======
Each command requires a checksum after the asterisk. The checksum can be calculated for your command using the following website: https://nmeachecksum.eqth.net/.

The GPS needs to be used outdoors in open skies and requires about 15 seconds to acquire a satellite signal in order to display valid data. When the signal is detected, the device will blink a green LED at 1 Hz.
======


== Wiring information

Wiring up the device requires 4 jumpers, to connect VDD, GND, SDA and SCL. The example here uses I2C port 0, which is assigned to GPIO 4 (SDA) and 5 (SCL) in software. Power is supplied from the 3V pin.


[[pa1010d_i2c_wiring]]
[pdfwidth=75%]
.Wiring Diagram for PA1010D.
image::pa1010d_i2c.png[]

== List of Files

CMakeLists.txt:: CMake file to incorporate the example in to the examples build tree.
pa1010d_i2c.c:: The example code.

== Bill of Materials

.A list of materials required for the example
[[pa1010d-bom-table]]
[cols=3]
|===
| *Item* | *Quantity* | Details
| Breadboard | 1 | generic part
| Raspberry Pi Pico | 1 | https://www.raspberrypi.com/products/raspberry-pi-pico/
| PA1010D board| 1 | https://shop.pimoroni.com/products/pa1010d-gps-breakout
| M/M Jumper wires | 4 | generic part
|===