CAN PMU High-Precision Power Monitor
Overview
CAN PMU is a power management module for unmanned systems. It is built around an STM32F412 processor and runs CUAV's ITT temperature-drift compensation algorithm, measuring voltage and current in real time. It accepts 6~62V input, monitors up to 110A, and the Power port supplies 5.4V/5A to the controller. Communication uses the CAN bus with the standard Dronecan protocol, and every module is factory-calibrated for consistency and accuracy.
Specifications
| Item | Value |
|---|---|
| Processor | STM32F412 |
| Input voltage | 6~62V (2-15S) |
| Max current | 110A |
| Voltage accuracy | ±0.05V |
| Current accuracy | ±0.1A |
| Resolution | 0.01A/V |
| Max output power | 6000W/90s |
| Max continuous power | 5000W |
| Regulated output (Power port) | 5.4V/5A |
| Protocol | Dronecan |
| Operating temperature | -20~+100℃ |
| Firmware upgrade | Supported, see Firmware upgrade |
| Calibration | Factory calibrated |
| Connectors | IN/OUT: XT90 (cable) / Amass 8.0 (module) Power: 502585-0670 CAN: GHR-04V-S |
| Dimensions | 46.5 × 38.5 × 22.5 mm |
| Weight | 76g |
Status LED
- Solid green: 4.0~4.3V per cell
- Solid yellow: below 4.0V but above 3.7V per cell
- Solid red: below 3.5V per cell
NOTE
The module infers the cell count from the initial voltage. If every cell is below 3.7V at power-up, the cell count may be misjudged.