Discover Easy, Affordable, and Reliable PCB manufacturing with JLCPCB! Register to get $60 New customer coupons: Hello friends RS485 is the most common and reliable protocol of communication widely used in industries. In this project, I designed a compact PCB to control 4 bipolar stepper motors independently, driven by an A4988 stepper driver and a STM32G0 microcontroller used as a central controller. Modscan software is used as Modbus master. RS485 to USB dongle is used to connect the controller to PC. 💻visit for more projects :- 👉 Short channel :- @mrinnovativeshorts 👉 instagram :- 👉 Website :- 👉 FB page :- I use Epidamic sound for my back ground music if you like it you can check them out ** This video is made for educational purposes only. Please use your own judgment, knowledge, care, and precaution if you plan to replicate. **