Automatic water pump with stable voltage and dry run production Arduino uno Rev 3 Ultrasonic sensor Relay module But I want to using PZEM-004T for Voltage and ampere reading. Before Relay module high need to check voltage 200V to 230V then relay pin change to high. Delay 20000; check Ampere i…

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Thanks for your advice I follow up.

Loop() will continuously run so no need to have while() loops inside of loop. Also, get rid of the goto statements :frowning: It is much better to structure your code as a state machine and then transition from state to state based on your sensors. There are many examples that google will happily…

Automatic water pump with PZEM-004T

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paulpaulson December 12, 2022, 5:19pm 2

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Automatic water pump with PZEM-004T

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