PWM Signal Voltage MOD
The newest batch (version RC09 and newer) of Pixhawk 6C now supports switchable PWM signal voltage (3.3V or 5V). The modification requires the user to open the casing of the Pixhawk flight controller and be familiar with soldering.
Any damages caused during the modification are not covered by warranty
To switch the PWM signal voltage, bridge the 3V3 or 5V soldering pads on the PCB by applying solder on the pads. Make sure the unused pads are cleaned and not shorted.

For RC12 PCB design, the process is more straightforward. Locate the JP1 soldering pad at the bottom left of the PCB. Bridge the JP1 pads for 5V and unbridge to revert to 3.3V.

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