grbl is stepper motor controller firmware for three-axis cnc machines, intended to run on Arduinos with a motor driver add-on board. Engineer in Wonderland cnc-related blogs are indexed here It is the ...

PCB integrating an ESP-WROOM-32 microcontroller with two A4988/DRV8825 stepper motor drivers. This is a four layer PCB that I originally designed this for an ESP-32 controlled, NEMA17 powered robot.

MultiWii Firmware – Provides balance control algorithms. Wire.h – Enables I2C communication with MPU6050. EEPROM.h – Stores PID tuning parameters. Serial.h – Handles Bluetooth & RC communication. 🔄 ...