In order to safely connect an LED to a circuit, a current limiting resistor is placed in series with the LED. It is quite easy… Read More »How to Compute Resistor Value for LED

The ESP-01 module is a popular ESP8266 development board. Its popularity stems from its low cost and its small form factor. But one disadvantage of… Read More »ESP-01 with RTC and LCD Display

It is possible to make a digital clock out of an ESP-01 ESP8266 module synchronized with NTP (Network Time Protocol) and using a 20×4 LCD… Read More »ESP-01 ESP8266 NTP Clock with LCD Display

To program an ESP-01 module with Arduino IDE, the module needs to be connected to a programmer adapter. What keeps the ESP-01 module apart from… Read More »How to Program ESP-01 with Arduino IDE

We may want to save and later restore ESP8266 and ESP32 firmwares that came with them and were installed from the factory. It will come… Read More »How to Save and Restore ESP8266 and ESP32 Firmware

This article on how to install Esptool on Windows 10 was written because I remembered that I had been for a time wondering how to… Read More »How to Install Esptool on Windows 10

The Arduino Integrated Development Environment or the Arduino IDE has been designed not only for programming Arduino development boards. It has been expanded to support… Read More »How to Set up Arduino IDE for ESP8266 Programming

To program the popular Arduino development boards like the Arduino Uno and Arduino Mega, we need to install the Arduino IDE (IDE stands for Integrated… Read More »How to Install Arduino IDE on Windows 10

There are many models of microcontroller development boards based on Espressif ESP8266 chip. Unfortunately, different boards have different pin layouts or configurations. This NodeMCU V3… Read More »NodeMCU V3 ESP8266 Pinout and Configuration