GPIO pins HIGH on startup
Posted: Sun Jun 14, 2015 6:24 am
On both ESP-02 and ESP-07, which use NodeMCU, GPIO pins are set to HIGH at startup, and I have problems using it with a relay, for a remote switch.
Any solution for this? I have problems with the power grid in that area, and every time the power is back on, a signal is sent to the relay by the ESP module.
Any solution for this? I have problems with the power grid in that area, and every time the power is back on, a signal is sent to the relay by the ESP module.