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...

Wemos and LX1972 light sensor example

The LX1972 is a low cost silicon light sensor with spectral response that closely emulates the human eye. Patented circuitry produces peak spectral response...

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...

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...

QRE1113 IR reflectance sensor and ESP8266 example

The QRE1113 features an easy-to-use analog output, which will vary depending on the amount of IR light reflected back to the sensor. The QRE1113...

Wemos mini MATRIX LED Shield example

A new shield for the Wemos Mini came my way recently, this is called the MATRIX LED Shield - You can find out more...

ESP8266 and CJMCU-1010 capacitive touch module example

In this example we look at the CJMCU-1010 module - this is based on the AT42QT101x The AT42QT101x Single Key capacitive touch controller family provides an easy...

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...

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 Barometric Pressure Shield example

In this article we look at a relatively new shield for the Wemos/Lolin products - this is a Barometric Pressure shield based on a HP303B. Here...
ESP8266 and L3G4200D layout

L3G4200D three-axis gyroscope and ESP8266 example

In this example we connect a L3G4200D three-axis gyroscope module to a Wemos Mini - you can of course use any ESP8266 based board...

ESP8266 and LM75 temperature sensor example

The LM75 temperature sensor includes a delta-sigma analog-to-digital converter, and a digital overtemperature detector. The host can query the LM75 through its I²C interface...

Connecting a basic Touch sensor

This example shows how to interface a basic touch sensor to our Wemos Mini (esp8266), this sensor came as part of a kit of...

Wemos and MAG3110 magnetometer

Freescale’s MAG3110 is a small, low-power, digital 3-axis magnetometer. The device can be used in conjunction with a 3-axis accelerometer to realize an orientation...

ESP8266 and Stepper motor example

In this example we will show a basic stepper motor example, we use a driver board that can be bought on many sites which...

ESP8266 and GY-21P module example

This module  combines a BMP280 sensor and an SI7021 sensor. The on-board BMP280+SI7021 sensor measures atmospheric pressure from 30kPa to 110kPa as well as...