LailaTheElf/KlipperToolboard
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Update README.md

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bondus 2020-03-25 16:53:41 +01:00 committed by GitHub
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@ -7,12 +7,19 @@ Features:
* Two MOSFET drivers fans
* One big MOSFET driver for a hotend heater
* Thermistor input
* Servo connector
* One servo
* One endstop
It should be fed from the mainboard with 12-24V, 3.3V or 5V, GND, UART RX and UART TX.
It should be fed from the mainboard with 12-24V, 5V, GND, UART RX and UART TX.
Possible issues:
* Is the cooling for the TMC2209 adequate?
* How well will the UART cmos/ttl level survive? Noise?
* Does it work
Alternative design options:
* Use an ARM instead? STM32F030
* Create a local 5V/3.3V instead? Switch regulator + LDO. Only the servo needs 5V
* USB-c would be neat, it could provide all the power and signalling needed