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...

Using a LTR-329 Ambient Light sensor with an ESP8266

In this article we look at an Ambient Light sensor, the LTR-329 and connect it to an ESP8266 board - a Wemos D1 Mini...

ESP8266 RGB LED examples in Micropython

In this example we look at some WS2812B RGB LEDs example in Micropython for an ESP8266. Once again we use uPyCraft and again we...

VEML6075 ultraviolet (UV) light sensor and ESP266

The VEML6075 senses UVA and UVB light and incorporates photodiode, amplifiers, and analog / digital circuits into a single chip using a CMOS process....

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...

TSL2561 Luminosity Sensor example

The TSL2560 and TSL2561 are second-generation ambient light sensor devices. Each contains two integrating analog-to-digital converters (ADC) that integrate currents from two photodiodes. Integration...

ESP8266 and RFID-RC522 module example

In this example we will connect an RFID-RC522 module and connect to a Wemos Mini The microcontroller and card reader uses SPI for communication ....

ESP8266 and Si7021 temperature sensor example

The  Si7021  I2C Humidity  and  Temperature  Sensor  is  a  monolithic  CMOS  IC integrating   humidity   and   temperature   sensor   elements,  ...

Max7219 8×8 LED matrix example

The MAX7219/MAX7221 are compact, serial input/output common-cathode display drivers that interface microprocessors (µPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph...

ESP8266 and MCP23017 example

The is a 16-bit, general purpose parallel I/O port expander for I2C bus applications. The 16-bit I/O port functionally consists of two 8-bit ports (PORTA...

ESP8266 and LCD4884 example

This LCD4884  provides a 84x48 display this LCD shield can help meet your needs. It is able to display in English, Chinese and even images, it...

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...

Wemos and ML8511 example

The ML8511 measures the amount of ultra violet rayses contained in sunlight, and it is used for the equipment which displays the suntan by...

ESP8266 and vibration sensor module

In this example we connect a vibration motor module to an ESP8266. This is the type of motor that you could find in a...
ESP8266 and LTR390 layout

LTR390 UV Light Sensor and ESP8266 example using the Arduino IDE

In this article we look at a LTR390 UV Light Sensor and we will connect it to a Wemos Mini First lets look at the...

Wemos buzzer shield example

In this example we look at another Wemos mini shield, this time its the buzzer_shield which as its name suggests is a basic buzzer....