Pull-up / Pull-down resistor
microcontroller - Using internal pulldown to pull esp8266 logic pin low - Electrical Engineering Stack Exchange
Pull-up / Pull-down resistor
ESP8266 Correct wiring and setup - Networking, Protocols, and Devices - Arduino Forum
Pull-up Resistors - SparkFun Learn
Pull-up and pull-down resistors on Arduino - ElectroSoftCloud
Some help with Pull-Up/Down on ESP01 ? - General Electronics - Arduino Forum
ESP8266 NodeMCU Digital Inputs and Digital Outputs (Arduino IDE) | Random Nerd Tutorials
Switches Tutorial for Arduino, ESP8266 and ESP32
Switches Tutorial for Arduino, ESP8266 and ESP32
ESP8266 NodeMCU Digital Inputs and Digital Outputs (Arduino IDE) | Random Nerd Tutorials
![Nodemcu] INPUT_PULLUP on multiple GPIO - Project Guidance - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/2/c/6/2c6e04553d621fde45c210caad7fb88892fd1ee1.png "Nodemcu] INPUT_PULLUP on multiple GPIO - Project Guidance - Arduino Forum")
Nodemcu] INPUT_PULLUP on multiple GPIO - Project Guidance - Arduino Forum
ESP8266 Pinout Reference: Which GPIO pins should you use? | Random Nerd Tutorials
ESP8266 Is Alive! | XESS Corp.
Adafruit Feather Huzzah ESP8266 pull-up resistor using Arduino IDE - Stack Overflow
Switches Tutorial for Arduino, ESP8266 and ESP32
esp8266 - Why does the DS18B20 temperature sensor require a stronger pull-up resistor when Node MCU is powered through the Vin pin? - Electrical Engineering Stack Exchange
Configure GPIO Pins for ESP8266 NodeMCU Input Output Operations
3 Different way of connecting a push button to Arduino » DIY Usthad
Reset button - Everything ESP8266
Using ESP8266 GPIO0/GPIO2/GPIO15 pins
What is Pull Up and Pull Down Resistor and Where to Use them?
Switches Tutorial for Arduino, ESP8266 and ESP32
ESP-01 and ESP-01S How program and use the Pins and Leds
IO Level Conversion 3.3V to 5V for ESP8266 | Circuits4you.com
