VEML6040 color sensor and ESP32

VEML6040 color sensor senses red, green, blue, and white light and incorporates photodiodes, amplifiers, and analog / digital circuits into a single chip using...

LPS25H piezoresistive pressure sensor and ESP32 example

In this article we look at another pressure sensor - this time its the LPS25H and as usual we will connect it up to...

ESP32 and DS18B20 temperature sensor example

The DS18B20 is a  temperature sensor that can be used in various simple projects.  This part uses the 1 wire (I2C) bus and you can...

A B4R ESP32 HDC1008 temperature 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...

ESP32 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...

ESP32 and PCF8575 I/O expander example

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 5.5-V VCC operation. The PCF8575 device provides general-purpose remote I/O...

ESP32 and MCP9808 digital temperature sensor example

In this example we connect the MCP9808 to the ESP32 The MCP9808 digital temperature sensor converts temperatures between -20°C and +100°C to a digital word...

ESP32 and MMA7361 accelerometer example

The MMA7361L is a low power, low profile capacitive micromachined accelerometer featuring signal conditioning, a 1-pole low pass filter, temperature compensation, self test, 0g-Detect...

ESP32 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...

ESP32 and WS2812 RGB led ring example

This was a WS2812b led ring that I purchased for low cost. There are 12 LEDs in total on this and once you solder...

ESP32 built in hall effect sensor example

One feature of the ESP32 that sometimes goes unnoticed is the built in hall effect sensor. Lets look at a hall effect sensor and how...

ESP32 and DHT11 sensor example

DHT11 digital temperature and humidity sensor is a composite Sensor contains a calibrated digital signal output of the temperature and humidity. Application of a...