Esp-01: easy solution tp use 3 GPIO ?

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tparvais
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Joined: 28 Oct 2015, 23:13

Esp-01: easy solution tp use 3 GPIO ?

#1 Post by tparvais » 09 Feb 2020, 23:08

Hello

I’m recycled old,esp-01 to monitor 2 pulse counters and one ds18b20. Programmation firmware last Build is fine

I tried to use gpio 0, 2 and 3

When configuring on gpio 3 the ds18b20 or pulse counter it doesn’t not work

Is there a trick to release this port 3?

Thank’you

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budman1758
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Location: Riverside CA USA

Re: Esp-01: easy solution tp use 3 GPIO ?

#2 Post by budman1758 » 10 Feb 2020, 00:03

You need to disable the serial port to use GPIO 3. After that it should work.
"The glass is twice as big as it needs to be".

tparvais
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Posts: 38
Joined: 28 Oct 2015, 23:13

Re: Esp-01: easy solution tp use 3 GPIO ?

#3 Post by tparvais » 10 Feb 2020, 23:21

oh yes, I forgot that ! Thank you

Could be nice to add it ti wiki

Thomas

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