Description The M5Stack ATOMIC H-Bridge Driver Base is an H-bridge motor driver base compatible with ATOM series controllers. It integrates a DRV8876 motor driver chip for DC motor control projects. The official product page lists DC 9 to 24V power input, a typical output current of 1.5A and a 2A peak output capability. It is suitable for DC motor speed control and forward/reverse rotation control. The driver integrates an N-channel H-bridge, charge pump voltage regulator, current sensing and regulation, current ratio output and protection circuits. The built-in DC/DC circuit powers the device, while ADC pin G33 is connected to a voltage divider circuit for real-time input power monitoring. Features DRV8876 motor driver: built-in H-bridge driver chip for DC motor control. DC 9 to 24V input: supports the official motor power input voltage range. High output current: official output current is 1.5A typical and 2A peak. 3.3V logic input: compatible with low-voltage logic control from ATOM controllers. Speed and direction control: suitable for DC motor speed control and forward/reverse rotation. Input voltage monitoring: ADC pin G33 is connected to a voltage divider for real-time power input monitoring. Integrated protection: includes UVLO, charge pump undervoltage, overcurrent protection and thermal shutdown. EMI reduction: spread spectrum clock helps reduce electromagnetic interference. Specifications Driver Chip DRV8876 Driver Type N-channel H-bridge motor driver Input Voltage DC 9 to 24V Output Current 1.5A typical, 2A peak Logic Input 3.3V Input Power Monitor ADC G33 via voltage divider Protection Functions UVLO, CPUV, OCP, TSD Product Size 48 x 24 x 17.5mm Product Weight 15.7g Package Size 136 x 92 x 13.7mm Gross Weight 20.8g Applications DC motor control Motor speed control projects Forward and reverse rotation control ATOM series motor driver prototypes Product List 1 Atomic HDriver Base 1 HT3.96-4P terminal Other Content Control and Protection Notes Controller Compatibility ATOM series controllers Power Circuit Integrated DC/DC circuit powers the device Fault Indication Fault conditions are indicated through the FAULT pin Official Documentation Resources Schematic, pin map, model size, DRV8876 datasheet, Arduino examples, UIFlow docs and feature video The official product list includes the Atomic HDriver Base and one HT3.96-4P terminal. It does not list an ATOM controller, motor or external power supply as included. Resources M5Stack ATOMIC H-Bridge Driver Base documentation FAQ What driver chip does the ATOMIC H-Bridge Driver Base use? It uses the DRV8876 motor driver chip listed by the official product page. What input voltage does it support? The official input voltage range is DC 9 to 24V. What output current is listed? The official output current is 1.5A typical and 2A peak. Can it control motor direction? Yes. The official description lists DC motor speed control and forward/reverse rotation control as suitable uses. What is included in the package? The official product list includes one Atomic HDriver Base and one HT3.96-4P terminal.
