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sinara-hw / Stabilizer

2-channel microcontroller servo with EEM and Ethernet based on STM32 CPU
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PoE notification #66

Closed gkasprow closed 3 years ago

gkasprow commented 4 years ago

add a way to notify the CPU that power comes from PoE

gkasprow commented 3 years ago

we have an ideal diode circuit that isolates the PoE from DC. When DC is enabled, the PoE module output is 15mV Let's use the PoE module 12V output, divide it and route to the free pin of the MCU. obraz

pin 136 of CPU is close to PoE module obraz