Hi, I have so far used this relay module with my Arduino Pro Mini clone (5V, 16MHz) without a problem. However, in the course of trying to save power I have reduced clock speed to 1/256, removed the power led and used the low power lib by rocketscream. In particular after the Arduino has finished i…

Arduino Pro Mini clone with transistor circuit in power down mode problem

runaway_pancake October 2, 2021, 6:12pm 12

Is this your Configuration then --

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