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Verison 1

Schematic

Board Layout

Problems

• Having the flow check on GPIO-0 can cause reboot failures if the flow is stuck closed. Should move to use Rx or TX.

Image Modified

Version 2

Changes

• Move Flow sensor to ADC on CH7 in order to free up GPIO 0 -0 or RX/TX.
• Add light controlUse GPIO to trigger light relay

Schematic

Board Layout

Pump

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