1. The BLDC drive part is composed of 3 IR2104 gate drivers and 6 NMOS. The control logic is compatible with the official Simple FOC L6234PD solution; 2. Main control model: ESP32-WROOM-32E, 4MB Flash dual-core MCU Wi-Fi & Bluetooth module; 3. Onboard 2 INA240A2 high-precision current sensors are used to measure phase current. The inline sampling resistance value of phase A and B is 10mR (made from two 20mR resistors in parallel); 4. Supports magnetic sensor encoders such as AS5600 and AS5047P; 5. Includes ESP32 firmware burning port for secondary development; Onboard reset button and power indicator; Power supply voltage: DC 12-28V; Maximum output current: 20A; Interface: 1. VCC, GND: DC 12-28V power supply; 2. ESP32-WROOM-32E: 4MB FLASH dual-core MCU Wi-Fi & Bluetooth module; 3. ESP32 reset button; 4. IR2104 half-bridge gate driver: - SD# Enable pin: High level is active. When SD# is high, HO and LO outputs are controlled by IN; - HO and LO outputs are cut off when SD# is low; - IN control pin: When SD# is enabled, a high IN signal results in HO high and LO low; a low IN signal results in HO low and LO high; 5. 30V/30A N-channel MOSFET: Recommended operating range within 28V/20A (due to current sensing limitations, maximum detectable phase current exceeds 20A); 6. INA240A2 high-precision current sensing amplifier: Measures inline current for phases A and B; 7. Phase A and B current sensing resistors: 10mR resistance (using two 20mR resistors in parallel, matching SIMPLE FOC V2.0.4 design), maximum per-phase current 20A; 8. C: Brushless motor interface; 9. IO expansion port: Can connect magnetic encoders via I2C and SPI interfaces (e.g., AS5600 and AS5047P); Color: Black; Material: PCB; Package Contents: 1 x ESP32 20A Brushless Motor Driver Board; Only the above package content is included, other items are not included; Note: Light reflection and different display settings may cause slight color differences between the image and the actual item. Measurement error allowed is +/- 1-3cm.