All posts by Manoj R. Thakur

About Manoj R. Thakur

In 2014 I started contributing to Open Source electronics, and life has just gotten better from there. Founder of Maven Technologies.

ESP8266 NodeMCU HTTPS Secured GET Request

In this example we learn how to send Secured GET request to a secured https web page using NodeMCU or ESP8266? As we know all web pages are HTTP protocols, GET and POST are methods of communicating between web browser and the server. Also you look towards server side php Example coding. If you are looking for POST method read here.

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ESP32 OLED Library Display Example

This tutorial demonstrate how to use 0.96″ small I2C based Display with ESP32 DevKit using only two IO lines. Interfacing of large 16×2 LCD is difficult with ESP32, as it requires 6 IO Lines. This is shown in this post How to Interface 16×2 LCD with NodeMCU ESP8266 with only three wires?

Components Required

  1. OLED Display 0.96″ Four Wire I2C Type Display
  2. DevKit ESP32
  3. Connecting Wires
  4. USB Cable and Laptop

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NodeMCU ESP8266 OLED Display Code Example

This tutorial demonstrate how to use 0.96″ small I2C based Display with NodeMCU ESP8266 using only two IO lines. Interfacing of large 16×2 LCD is difficult with ESP, as it requires 6 IO Lines. This is shown in this post How to Interface 16×2 LCD with NodeMCU ESP8266 with only three wires?

Components Required

  1. OLED Display 0.96″ Four Wire I2C Type Display
  2. NodeMCU ESP8266
  3. Connecting Wires
  4. USB Cable and Laptop

Continue reading NodeMCU ESP8266 OLED Display Code Example

ESP8266 Turn off WiFi to save power

In this tutorial we see how to turn off ESP8266 WiFi, There are two methods to turn off wifi first is to use simple ESP8266WiFi.h Library and use WiFi.mode(WIFI_OFF); and another method to useĀ  WiFi.forceSleepBegin(); By turning wifi off you can save some power. or using only (WIFI_STA) station mode you can hide ESPs own Access point.

Turn off ESP8266 WiFi

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