3 channel tracking sensor example

This Tracking Sensor for Arduino can detect the white lines in black and black lines in white. This particular module has 3 sensors Using infrared...

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...

Wemos OLED shield example

In this example we look at another terrific little low cost shield for the Wemos mini, this time its the OLED shield. Lets look...

Wemos and LIS2DH three-axis linear accelerometer example

The LIS2DH is an ultra low-power high performance three-axis linear accelerometer belonging to the “femto” family, with digital I2C/SPI serial interface standard output. The LIS2DH...

Wemos HDC1008 sensor example

The HDC1000 is a digital humidity sensor with integrated temperature sensor that provides excellent measurement accuracy at very low power. The device measures humidity...

Wemos RGB led example

In this example we will connect an RGB led to our Wemos MIni, lets look at RGB leds first RGB LEDs consist of one red,...
ESP8266 and VCNL4040 layout

VCNL4040 Proximity Sensor and ESP8266 example using the Arduino IDE

In this article we look at a VCNL4040 Proximity Sensor and we will connect it to a Wemos Mini First lets look at the sensor The...

Wemos Mini and PIR sensor example

In this example we connect a PIR module to a Wemos Mini. A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared...

ESP8266 and BMP280 sensor example

BMP280 is an absolute barometric pressure sensor especially designed for mobile applications. The sensor module is housed in an extremely compact package. Its small...
ESP8266 and VEML7700 layout

VEML7700 lux sensor and ESP8266 example using the Arduino IDE

In this article we look at a ambient light digital 16-bit resolution sensor - this time its an VEML7700. As per usual we will...

Wemos and 4067 example

The 4067 was one of the IC's that I wanted to connect up to various microcontrollers as it looked extremely useful, here is a quick...

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...

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 HMC5983 magnetometer example

The Honeywell HMC5983 is a temperature compensated three-axis integrated circuit magnetometer. This surface-mount, multi-chip module is designed for low-field magnetic sensing for applications such...

A look at various ESP specific APIs

  Description Some ESP-specific APIs related to deep sleep, RTC and flash memories are available in the ESP object. These may be useful, we have already...

ESP8266 and SHT21 humidity and temperature sensor example

SHT21, the new humidity and temperature sensor of Sensirion is about to set new standards in terms of size and intelligence: Embedded in a...