- Sun Dec 18, 2016 11:57 am
#59646
This solved my problem. Thank you very much man . I had some 100nF capacitors around and that solved my problem.
armSeb wrote:Hello,
I am using ESP-12 modules. The big difference between ESP-12 and ESP-01 modules is the hardware reset management. When you power on the device, there is a transitionnal delay before all of the CPU power supplies reaches and stay to there nominal values.
When powering-up the module, you need a power-on-reset circuit. This is achieved by connecting a 10nF capacitor between the rst pin and GND. This capacitor is very important :
- It maintains the rst pin to low during a few mS, allowing the CPU to boot in sane conditions,
and
- It debounces the push reset button, allowing a safe reset procedure.
Without this cap, the CPU runs randomly.
EDIT : this capacitor is labelled C2 on the Nodecmu schematics. 10nF is a good and easy to find value.
