CAN-L4-BM is an ultra-precise digital power monitor based on TI INA239 and ARUDPILOT AP_PERIPH firmware The resistance of this conductive path is typically 200 MΩ, providing low power loss in the application Using this device, no calibration is required, and flight controllers supporting the DRONECAN protocol can easily obtain accurate current and bus voltage readings over the CAN bus Its compact design makes it easy to integrate into your drone setup without adding unnecessary weight, thus improving overall performance MCU: STM32L431XC, 256KB flash memory INA23985V, 16-bit, high-precision power monitor IC with SPI interface Battery voltage detection input: 0~85V Current detection range: 0~204.8A Load current on current detection resistor: 150A (continuous), 204.8A (burst) Voltage accuracy: ±0.1% Current accuracy: ±2% Interfaces CAN, drone CAN protocol UART2, spare, DFU ST DEBUG, SWCLK & SWDIO Material: PCB Color: As shown (The product appearance and printed words may vary depending on the batch, but this does not affect use) Package Contents: 1 x Digital Power Monitor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.