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The power rail is rated for an absolute maximum of 16.9V, accounting for LiPo battery overcharging and input transients (voltage spikes from hot-plugging a high-inductance battery). Usage of a battery with an anti-spark connector is recommended.
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This board was built to follow the Generic C3 2400 PWM target in the ExpressLRS examples on GitHub. The pin definition is as shown.
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Schematic
Altium 365 | 12V-5V 4A Buck with ELRS
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