Nodemcu basics | blink on board led | #1
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Introduction This is the best program to test on a new node MCU board It blinks the LED on the board so other hardware components a re not required This program also helps to check that your board in working fine Step 1: Set up the IDE Download the Arduino IDE. Install the Arduino IDE and opens it. Go to File > Preferences. Add http://arduino.esp8266.com/stable/package_esp8266com_index.json to the Additional Board Manager URLs Go to Tool > Boards > Boards Manager. Search for esp8266 and then install the board. Restart the your Arduino IDE. Step2: Code /* ESP8266 Blink by Simon Peter Blink the blue LED on the ESP-01 module This example code is in the public domain The blue LED on the ESP-01 module is connected to GPIO1 (which is also the TXD pin; so we cannot use Serial.print() at the same time) Note that this sketch uses LED_BUILTIN to find the pin with the internal LED */ void setup() { pinMode(LED_BUILTIN, ...