AP_PERIPH CAN NODE CAN-L4-BM

Matek AP_PERIPH CAN Power Monitor für Ardupilot AP Periph - CAN-L4-BM - Übersichtsseite

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CAN Node mit Power Monitor (TI INA239)

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CAN-L4-BM is a ultra-precise digital power monitor based on TI INA239 & ArudPilot AP_Periph firmware.
The resistance of this conductive path is 200 μΩ typical, providing low power loss in the application.
With this device, No calibration required, flight controller that support DroneCAN protocol can easily get accurate current & bus voltage readouts via CAN bus.

MCU: STM32L431xC, 256KB Flash
INA239 85-V, 16-Bit, High-Precision Power monitor IC With SPI Interface
Battery Voltage sense input: 0~85V
Current Sense Range: 0~204.8A
Load current on current sensing resistor: 150A(Continuous), 204.8A(Burst)
Voltage accuracy: ± 0.1%
Current accuracy: ± 2%
Interface
- CAN, DroneCAN Protocol
- UART2, spare, DFU
- ST debug, SWCLK & SWDIO
LED
- Blue, Fast blinking, Booting
- Blue, Slow blinking, working
- Red, 3.3V indicator
Power supply for CAN-L4-BM board : 4.5~5.5V @5V pad/pin
Power consumption: 10mA
Operating Temperatures: -40~85 °C
Physical
- Board Size: 30mm*22mm*3mm. 4g
- 3D file : CAN-L4-BM_STEP.zip
Firmware
- ArduPilot AP_Periph MatekL431-BattMon
- Update via DroneCAN GUI Tool
Parameters
- CAN_P1_DRIVER = 1 if attached to CAN bus1 port or CAN_P2_DRIVER = 1 if attached to CAN bus2 port
- BATTx_MONITOR = 8 (DroneCAN-BatteryInfo)

The big pad on the bottom side is a dead pad. No any circuit network on it.
Solder the positive wires as close as possible to both sides of the current sensing resistor.
2 ears for mounting can be cut off if you don’t need it.
If the CAN wires are too long, bridge the “120R” jumper.

Last updated 2 years ago