Send commands to mainboard with HTerm

Use bench power supply to power the boards.
Download HTerm.
- https://www.der-hammer.info/pages/terminal.html
Connect a micro USB cable to the mainboard.
Open HTerm.
Select the correct port.
- On Windows the ports are listed in the Device Manager.
- On Linux running dmesg can list recently connected devices.
Leave other settings to defaults.
Press Connect.
Command structure can be found on the Test robot page.
In HTerm under Input control change Type to HEX.
Send 0A 00 0A 00 0A 00 00 00 00 AA AA to set all the motors to rotate at the speed of 10.
- Byte order is little endian, which means that least significant byte is first.
Send F6 FF F6 FF F6 FF 00 00 00 AA AA to set all the motors to rotate at the speed of -10.
- Negative values are two’s complement of the positive value.
10 is relatively low speed, so if any of the motors is rotating fast, the motor power wires might need to be reversed (because the encoder values need to count in a positive direction if the speed is set to a positive value) or the encoder signal connections might be faulty.