MQ135 Gas Sensor with ESP8266 and ST7789 SPI Display

MQ135 is a Gas sensor. It works on analogue and digital pins with Arduino boards. It gives analogue value in PPM of Air Quality. But, when we use a digital pin, it gives on signal at a particular value of analogue. This can be adjusted via potentiometer. So, you can also detect a particular gas … Read moreMQ135 Gas Sensor with ESP8266 and ST7789 SPI Display

ST7789 SPI TFT 240×240 without CS Pin Interfacing ESP8266

ST7789 SPI tft without cs pin esp8266 wemos d1

ST7789 Chip is used in SPI interface based TFT LCD displays. These displays are the very chip in price and produce high-density Colorful images.But, the Chinese clone of ST7789 modules ships without a CS pin. Mainly the Resolution of the display is 240×240. In this post, I will share how to connect ST7789 SPI TFT … Read moreST7789 SPI TFT 240×240 without CS Pin Interfacing ESP8266

Automatic Night Light using LDR and Relay in ESP8266

Automatic Night Light using LDR with ESP8266 NodeMCU

We are nowadays want everything automated. Automatic Night Light is a very popular device. The light will glow in the night or when the area is dark. In the day time or bright condition light will be off. In this post, you will learn how to make Automatic Night Light using LDR and Relay Module … Read moreAutomatic Night Light using LDR and Relay in ESP8266

Home Automation Using ESP8266 NodeMCU with Relay

Home Automation Using ESP8266 nodemcu with relay module

Nowadays everything is digital. We can control almost everything using our mobile. We have also WiFi in our home. So why not we can control our home electronics instruments like light fan AC etc.In this post, I will share how to control a LED Bulb of 220V AC using ESP8266 NodeMCU using Relay Board via … Read moreHome Automation Using ESP8266 NodeMCU with Relay

Connect LCD Display with ESP8266 Using I2C Module

Connect LCD Display with ESP8266 Using I2C Module

To see the output from Arduino, we need to connect LCD display with it. There is mainly two version of LCD display is available in the market. One is 16X2 display which has 2 lines & another one is 20X4 display which has 4 lines. We will use 20 X 4 display in this tutorial … Read moreConnect LCD Display with ESP8266 Using I2C Module

Clock with Temperature using DS3231 & SSD1306 in ESP8266

Clock with Temperature using DS3231 & SSD1306 in ESP8266

The DS3231 is a very accurate & widely used Real Time Clock (RTC) module. This module is used in Arduino based projects. This module also works with Raspberry Pi. In this post, I will share how to make Real-time clock with temperature using the DS3231 RTC module & SSD1306 OLED display in ESP8266 NodeMCU. Components … Read moreClock with Temperature using DS3231 & SSD1306 in ESP8266