ESP8266 Community Forum

- Thu Mar 17, 2016 11:38 am #43410 I connected as you suggest.
To measure across the resistors you mean one lead on each leg or a specific leg to ground?

Measuring one lead to each leg of resistor:
ra 10ohm = 475mv
rb 10ohm = 4mv

seems backwards from your expectations?

IMG_0187.JPG

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- Thu Mar 17, 2016 12:29 pm #43418 Something seems backwards. Disconnect the Blue/5V wire. Does the relay open and/or does the indicator LED turn off?

- Thu Mar 17, 2016 12:53 pm #43420 Pulled the blue wire. Led stayed lit but the relay closed.

- Thu Mar 17, 2016 12:57 pm #43421 That's the behavior I would have expected, what is the voltage drop across Ra now?