MATEK CAN-L4-BM

MATEK CAN-L4-BM AP_PERIPH Firmware CAN DIGITAL POWER MONITOR for RC Airplane Multirotors H743 SLIM V3 Drone Parts

• 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.

Specifications:

• 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)

Packing:

• 1x CAN-L4-BM board

• 1x JST-GH-4P to JST-GH-4P 20cm silicon wire

Tips:

• 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.