Hw-044 Datasheet 100%

Here is where 90% of online tutorials get it wrong. The HW-044 has a tiny on the underside labeled A and B .

library to create a secondary serial port for the HW-044. This allows you to keep the hardware serial port (Pins 0 and 1) free for debugging and uploading code. Loopback Test hw-044 datasheet

This code creates a classic "tank drive" response: pushing forward moves both motors forward, pulling back reverses, and moving the X axis creates differential steering. Here is where 90% of online tutorials get it wrong