spascual90 / pcb-for-fenix

PCB to implement Fenix autopilot

PCB for Fenix

PCB to implement Fenix autopilot

Configuration

Fenix PCB v.1.0

Known errors and limitations There is an identified error in the current Fenix PCB design. The pins for PWM/DIR are not correctly allocated. PIN 6&7 are the right PINS. PIN 11&12 should be discarded. In consequence, provisions for these signals in Fenix PCB are not valid.

Mitigations proposed: 1 - Usage of a motor controller Arduino shield instead where PWM/DIR pins are directly connected to Arduino through the shield and can be configured correctly to PIN6&7. For this purpose I recommend the shield version of MD10C, https://www.robotshop.com/es/es/moto...no-shield.html

2 - If you already have the MD10C R2 or any other "wired version", and still wants to use Fenix PCB you can still do so, just connect the PWM/DIR pins from motor controller to the arduino 6&7PINS through cables.

Fenix PCB v.1.1-beta.1 patch to fix V1.0 known errors

WARNING! This patch has not been tested. Use at your own risk.

• PWM/DIR pins where wrongly allocated to D11, D12. Reallocated to D6, D7.
• Removed serial I/F expansion: No specific use.
• J1, J2 screwed plugs shifted. In case of shield pins too short there was a risk of short-circuit with USB plug.
• Screwed plug pin tags shifted. After screwed plug installation it was not possible to read the text.

Known errors and limitations

• Label PWD and DIR are wrongly assigned to connector PINS. This issue impacts motor controllers connected to Fenix shield through cables. Not applicable to motor controller Arduino shields.

Mitigations proposed: 1 - Swap connector from motor controller PWD to connector DIR in Fenix shield. Swap connector from motor controller DIR to connector PWD in Fenix shield

Fenix PCB v.1.1-beta.2 patch to fix V1.1-beta.1 known errors

• PWM/DIR label corrected.
• Version label added.