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Knowledge BaseChanges for page ESP8266 Boot Config GPIO and Onboard LED
Last modified by Victor Zhang on 15:13, 17/04/2020
edited by Victor Zhang
on 15:13, 17/04/2020
on 15:13, 17/04/2020
edited by Victor Zhang
on 13:12, 17/04/2020
on 13:12, 17/04/2020
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... ... @@ -4,8 +4,8 @@ 4 4 *** A button with normally open to Ground with internal pullup is OK 5 5 *** A button with normally closed to VDD/GND is likely NOT OK (Only OK when it fits the mode for booting, however will possibly make reprogramming impossible) 6 6 *** Sensor module which will have a High/Low to the chip is NOT OK (sometime will make it try to go into program mode) 7 -** In the generic [[NodeMCU>>https://www.c-sharpcorner.com/article/blinking-led-by-esp-12e-nodemcu-v3-module-using-arduinoide/]], the PIN identifiers are: **D3,D4 and D8**7 +** In the generic [[NodeMCU>>https://www.c-sharpcorner.com/article/blinking-led-by-esp-12e-nodemcu-v3-module-using-arduinoide/]], the PIN identifiers are: D3,D4 and D8 8 8 ** Use them as output is the best practise 9 -** GPIO2/GPIO16 also connected with Drain mode LED( Low level light up), identifiers are **D4 and D0**9 +** GPIO2/GPIO16 also connected with Drain mode LED( Low level light up), identifiers are D4 and D0 10 10 ** Ref: [[https:~~/~~/lowvoltage.github.io/2017/07/09/Onboard-LEDs-NodeMCU-Got-Two>>url:https://lowvoltage.github.io/2017/07/09/Onboard-LEDs-NodeMCU-Got-Two]] 11 11 [[image:https://lowvoltage.github.io/images/NodeMCU-ESP8266-LEDs.jpg||alt="LED Pos" height="281" width="426"]]