ESP32 and a 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...

Interfacing an AD keypad module to your ESP32

I purchased this module as part of a microcontroller kit, its an interesting little module as it has 16 buttons but with only 1 I/O...

BPI:bit and MPU-9250 Nine-Axis example using the Arduino IDE

In this article we look the MPU-9250 Nine-Axis (Gyro + Accelerometer + Compass) MEMS MotionTracking™ Device which is fitted to the BPI:bit The sensor uses...
ESP32 and sht40

SHT40 Digital Humidity Sensor and ESP32 board example

In this example we connect a SHT40 Digital Humidity Sensor to an ESP32 This is the next generation of the SHT sensors series, we have...

MAX30102 pulse oximetry and heart-rate monitor sensor and ESP32

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...

ESP32 and SHT20 temperature sensor example

In this example we will connect a SHT20 temperature sensor to an ESP32. Lets look at the SHT20 sensor The SHT20 humidity and temperature sensor of...

ESP32 and ADXL335 accelerometer example

The ADXL335 is a small, thin, low power, complete 3-axis accelerometer with signal conditioned voltage outputs. The product measures acceleration with a minimum full-scale...

ESP32 and TMP175 digital temperature sensor example

The TMP75 and TMP175 devices are digital temperature sensors ideal for NTC and PTC thermistor replacement. The devices offer a typical accuracy of ±1°C...

ESP32 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...

BMM150 digital geomagnetic sensor and ESP32 example

In this article we look at a digital geomagnetic sensor - this time its the BMM150 and as usual we will connect it to...

ESP32 and GA1A12S202 light sensor example

In this example we will connect a GA1A12S202 Log-Scale Analog Light Sensor to an ESP32 LOLIN32 module from Wemos. The features of this sensor are...

ESP32 and bme280 temperature sensor example

The BME280 is a great new chip which was originally designed for the next generation of smartphones. It is made up of a very...