HP Robots Football / Soccer field puzzle and remote control

3D Prints without supports easy, you can use infill with empty top layer to save filament.

Remote control requires Otto main pcb, battery and 4 button modules

ESPNOW setup:

1. In the Starter robot control, open in Thonny IDE, pair with usb and play this code Mac Address finder.py 

2. You will get the MAC address something like: b'\xfc\xb4gzw@' (unique for every robot) in the terminal, copy it

3. Open Starter_receiver4buttons.py and save into the robot

4. Open Controller_sender4buttons.py pair USB with controller

5. Replace in line 16 with the  new MAC address 

6. Save the code in controller

That's it! they should automatically connect when you switch them on

Buttons in the controller are connected:

# Connector 4 is forward
# Connector 6 is backward
# Connector 5 is turn left
# Connector 7 is turn right

Depending if is version 1 or version 2 of the buttons the logic is inverted and you need to replace "0"s to "1"s on the conditionals in the controller code.