NodeMCU wont boot with GPIO connected
Posted: 31 Jan 2019, 03:49
Hello,
I have a wierd issue and hope some of you can help me. I have done loads of reading in the forum prior to posting, but if this topic has been covered elsewhere then please me know.
I have a NodeMCU running this image: https://github.com/ToniA/ESPEasy/releases and everything seemed fine. Until I disconnected the power and reconnected... the NodeMCU would not start?
I have 2 items connected, 2 x DS18b20 sensors on GPIO-14 and an infrared LED connected to GPIO-0 via this circuit: https://www.letscontrolit.com/wiki/index.php/IRTX. The NodeMCU is powered via USB, but I have also trialled a stand alone 5v power supply with no change.
The only way to get the NodeMCU to start is when I disconnect the wires to the GPIO terminals. If I reboot via the web interface the NodeMCU keeps running. The problem only happens when initially applying the power.
I hope someone can give me some tips/help?
Thanks Mark
I have a wierd issue and hope some of you can help me. I have done loads of reading in the forum prior to posting, but if this topic has been covered elsewhere then please me know.
I have a NodeMCU running this image: https://github.com/ToniA/ESPEasy/releases and everything seemed fine. Until I disconnected the power and reconnected... the NodeMCU would not start?
I have 2 items connected, 2 x DS18b20 sensors on GPIO-14 and an infrared LED connected to GPIO-0 via this circuit: https://www.letscontrolit.com/wiki/index.php/IRTX. The NodeMCU is powered via USB, but I have also trialled a stand alone 5v power supply with no change.
The only way to get the NodeMCU to start is when I disconnect the wires to the GPIO terminals. If I reboot via the web interface the NodeMCU keeps running. The problem only happens when initially applying the power.
I hope someone can give me some tips/help?
Thanks Mark