ESP8266 Community Forum

- Fri Jan 26, 2018 4:15 pm #73505 Which diode exactly are you using ? Thanks !

Finding the perfect value that lies on some hairy fairy borderline of working and not working is not good.... resistors change value due to many circumstances, so your borderline solution tomorrow, or next week becomes your WTF moment.... because it "WAS" working.... remember... "WAS working" should be replaced with "it was on the edge of working"

A resistor really only works when you have only a switch to ground connected on reset pin, and not the amount of other circuitry as you do that interferes with it....

In conclusion:



Thanks for listening
RichardS

PS. And how do I know.... just say.... "been there, done that"

The diode solution works perfectly. Thanks a lot.

- Sat Jan 27, 2018 9:24 am #73509 Almost any "schottky" diode will work, for example 1N5819.

- Sat Jan 27, 2018 9:33 am #73510 I prefer the 1N5817 because it has a lower forward voltage drop. Generally when a Schottky diode has a larger reverse voltage rating that comes at the expense of the forward voltage drop.

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- Sat Jan 27, 2018 1:45 pm #73516 an sb120 has less than 200mV@10mA, thats a figure.