-->
Page 1 of 2

ESP-xx GPIO etc PIN Resistance

PostPosted: Sat Mar 26, 2016 8:06 am
by xtal
I've been looking for information on pin resistance of the ESP8266 , and have had no luck :cry:
The datasheet I've found are quite lacking in this area. :roll:
Does anybody know the following.... :D

ADC pin input Resistance = ?
GPIOx Output Resistance = ?
GPIOx Input Resistance = ?

Re: ESP-xx GPIO etc PIN Resistance

PostPosted: Sat Mar 26, 2016 8:17 am
by martinayotte
The specs mentioned :

GPIO outputs 12ma max current
GPIO inputs 50uA leakage current

Nothing mentioned about ADC Tout.

Re: ESP-xx GPIO etc PIN Resistance

PostPosted: Sat Mar 26, 2016 8:33 am
by xtal
Ok so how can I get the Resistance 3.3V ----R-----12MA----load------gnd

50ua leakage Equates to what Resistance ? 3.3v ------R leakage-- pin volts?

I don't think I have the resources to measure correctly.......

Re: ESP-xx GPIO etc PIN Resistance

PostPosted: Sat Mar 26, 2016 8:42 am
by martinayotte
Ohm's Law ...

V = R * I