Wemos and reed switch example
The reed switch is an electrical switch operated by an applied magnetic field. It consists of a pair of contacts on ferrous metal reeds...
ESP8266 and OLED Micropython example
In this example we show an example written in Micropython using the uPycraft IDE. This time we will be trying out the Wemos OLED...
Wemos and Soil Moisture Sensor example
In this article, we are going to interface a Soil moisture sensor with an ESP8266. This sensor measures the volumetric content of water inside...
Some Neopixel examples
This example takes the Wemos Mini Ws2812B example a bit further on and use an 8 LED Neopixel strip
Here is an image of the strip we...
Wemos 1.44“ inch TFT LCD shield examples
In this example we look at the 1.44“ inch TFT LCD shield from Wemos. It can display 128×128 resolution and 18-bit color
The TFT is...
VEML6040 color sensor and ESP8266
VEML6040 color sensor senses red, green, blue, and white light and incorporates photodiodes, amplifiers, and analog / digital circuits into a single chip using...
ESP8266 and HDC1080 humidity and temperature sensor
The HDC1080 is a digital humidity sensor with integrated temperature sensor that provides excellent measurement accuracy at very low power. The HDC1080 operates over...
Using a 74HC595 shift register with the Wemos
Sometimes in your projects you simply do not have enough I/O lines available, take for example a lot of the multiple LED examples, these...
Wemos Mini and I2C LCD example
Sometimes a nice big LCD is useful for your projects, in this example we will interface to an I2C LCD using our ESP32. Now...
ESP8266 and SHt30 shield example
This time we look at the SHT30 shield from Wemos. Now there are other versions of this board as well, this is the official...
Wemos Mini WS2812b example
The WS2812 family is a intelligent control LED light source that the control circuit and RGB chip are integrated in a package of 5050...
DHT11 sensor data to Thingspeak using a Wemos D1
In this example we will connect a DHT11 sensor to our Wemos D1, we will then send the temperature and humidity values to thingspeak.
DHT11...
ESP8266 and MMA8452 accelerometer example
In this example we will connect a MMA8452Q accelerometer to an ESP8266 - as usual it's a Wemos Mini
Lets look at the sensor
The MMA8452Q is a...
MCP4725 Digital-to-Analog Converter example
MCP4725 is a single channel, 12-bit, voltage output Digital-to-Analog Converter with integrated EEPROM and an I2C Compatible Serial Interface.
Again the easiest way to interface...
ESP8266 displaying a QR code on an OLED display
In this example we will display a QR code on an OLED display with an ESP8266, in this case a Wemos mini. This will...
MAX30102 pulse and heart-rate monitor sensor and ESP8266
The MAX30102 is an integrated pulse oximetry and heart-rate monitor biosensor module. It includes internal LEDs, photodetectors, optical elements, and low-noise electronics with ambient...