Walksnail
Walksnail Avatar Goggles X Replacement Heat Sink Kit
Price on request
MOQ 2 pcs · samples available
Matek · Drone Accessories
MATEK CAN-L4-BM AP_Periph High Precision DroneCAN Digital Power Monitor
SKU RS-321 HTS 8806.99 Origin Shenzhen, CN Updated Oct 2026
Price on request
Wholesale pricing is quoted per order. Send the quantity and destination and the trade desk replies within six working hours, EXW Shenzhen.
- MOQ 1 pc — samples welcome
- Sourced equivalent available for private label
- Bench-tested before dispatch
- 12-month warranty, RMA support
- Ships in 24-48h from stock
- Trade desk replies in 6h
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.
Key specifications
| Brand | Matek |
|---|---|
| Department | Drone Accessories |
| Minimum order | 1 pcs (samples available) |
| Lead time | Ships in 24-48h from stock |
Packing and freight data
| Packaging | Qty per carton | Carton (cm) | Gross weight | CBM |
|---|---|---|---|---|
| Retail box | 4 | 18 × 12 × 6 | 0.42 kg | 0.0013 |
| Inner carton | 19 | 38 × 26 × 22 | 4.6 kg | 0.0217 |
| Export carton | 119 | 58 × 42 × 38 | 21.4 kg | 0.0926 |
Placeholder packing data — confirm with your supplier before quoting freight. CBM is per export carton.
Wholesale questions
What is the minimum order quantity for MATEK CAN-L4-BM AP_Periph High?
Stock supply starts at 1 pc. The 10× and 50× quantity breaks are already applied in the price table above.
Can you print our brand on this product?
Not on this specific SKU. For MATEK CAN-L4-BM AP_Periph High Precision DroneCAN Digital we supply as-is, but if you need a private-label version we will usually find an equivalent part in the same family that can be branded — send us the requirement.
How is this shipped and how long does it take?
Air express (DHL / FedEx / UPS) is typically 4-7 working days door to door. Larger orders can move by sea or rail with DDP terms so the landed cost is fixed before dispatch.
Is it tested before dispatch?
Every unit is bench-tested and inspected before packing, and we can supply CE / FCC / RoHS documentation and a QC report with the shipment.
More from Drone Accessories
Buyers of this item usually also quote these SKUs.
Ruistart
FPV Optical Fiber Communication Equipment Optic Fiber Drone Ultra-long Distance 2km/3km/5km/10/15/20km/30km FPV Fiber
Price on request
MOQ 2 pcs · samples available
OEM OK
Ruistart
Brushless Centrifugal Nozzle (12S-18S/48V) for Agricultural Spray Drone
Price on request
MOQ 1 pc · samples available
Get bulk pricing on your BOM in 6 hours
Send us your parts list — we return a landed-cost quote with tier pricing, lead time and shipping options. No sign-up needed, just an email address to reply to.
- Tier pricing from 1 pc to 10,000+ pcs, valid 30 days
- Mixed-SKU containers and consolidated shipping
- OEM logo, custom firmware, retail packaging
- Sample order first, scale after you test
Prefer to talk? Message the trade desk on WhatsApp.