- Joined Oct 24, 2022
GPIO0 and GPIO15 are used to decide what source to boot the ESP8266 from. In normal operation (boot from flash) GPIO0 is pulled high and GPIO15 is pulled low, each through a resistor.
Even though after boot you can use the two pins, they have to be wired so that the are active low for GPIO0 which is pulled high by the resistor, and active high for GPIO15 which is being pulled low.
Hello, I made a few edits. Now GPIO15 works for me and the LED lights up.
|Thread starter||Similar threads||Forum||Replies||Date|
|AVR Atmega 32 to esp8266||Microcontrollers||1|
|A||ESP8266 Automatic Watering Circuit - low level trigger relay will turn on but won't turn off||Automation, Robotics & Control||38|
|D||Wrong signal from a voltage divider wit esp8266||Analog & Mixed-Signal Design||9|
|D||ESP8266 ESP-01 5V 4-Channels WiFi Relay Module||Microcontrollers||13|
|Thingspeak, esp8266||Wireless & RF Design||1|
by Jeff Child
by Jake Hertz