32-bit ARM Cortex M4 MCU @ 80 MHz. Current: 20A/25A Voltage: 7.4~14.8V BLHeli D-short 2-4S BLHeli-S is a firmware is open source program Easy to install with supper small size and light weight
Specifications
Current
20A/25A
Voltage
7.4~14.8V
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