Hjx-001 Driver [portable] May 2026

Development Report: HJX-001 Driver

4. Driver API (C Language)

5. Usage Example

#include "hjx001.h"
// I²C write implementation
int i2c_write_reg(uint8_t reg, uint8_t *data, uint8_t len) 
// Platform-specific I²C write

int main() 
hjx001_handle_t dev = 
.dev_addr = 0x40,
.comm_mode = 0,
.delay_ms = HAL_Delay,
.write_reg = i2c_write_reg,
.read_reg = i2c_read_reg
; hjx-001 driver
if(hjx001_init(&dev) != 0) 
    // Handle error
hjx001_set_mode(&dev, 0x03);  // e.g., normal operation
hjx001_send_command(&dev, 0xA5);
while(1) 
    uint32_t faults = hjx001_get_faults(&dev);
    if(faults) 
        // Handle fault conditions

Final Checklist Before Powering On

Before you press the "Start" button on your CNC or robot controller, run through this final checklist for the HJX-001 driver: Development Report: HJX-001 Driver 4

1. [ ] Multimeter measures correct DC voltage at V+ and V-.
2. [ ] Motor phases are paired correctly (not cross-wired).
3. [ ] Signal wires are shielded and separated from power wires.
4. [ ] The driver is mounted to a metal heatsink or chassis (necessary for >4A operation).
5. [ ] The enable signal is active (ENA+ high or low depending on your controller logic).

Troubleshooting Common HJX-001 Driver Errors

Even rugged hardware can fail. The HJX-001 driver features an LED status indicator (Green = Healthy, Red blinking = Fault). Decode the red blinks to identify the issue. int main() hjx001_handle_t dev =