ESP32 and AM2301 sensor example

AM2301 output calibrated digital signal. It applys exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability. Its sensing elements is connected with...

Subscribing to MQTT topic using an ESP32

In this example we will subscribe to an MQTT broker and topic. Again we use the same CloudMQtt, arduino libraries and MQTTlens chrome app that...

ESP32 and ISL29125 RGB color light sensor

In this example we look at the ISL29125 RED, GREEN and BLUE color light sensor Here is some info about the sensor The ISL29125 is a low power,...

ESP32 and LSM303 sensor example

The LSM303 3D Accelerometers/Magnetometer Models are a system-in-package featuring a 3D digital linear acceleration sensor and a 3D digital magnetic sensor. These best-in-class eCompass devices...

ESP32 and LDR example

In this example we connect a photoresistor to a ESP32 Lolin32, the value read from the photoresistor corresponds to the amount of light present....

MH ET LIVE ESP32 MINI KIT and DHT Pro shield example

In this example we connect the DHT22 Single Bus Digital Temperature Humidity Sensor (DHT Pro shield) to our Wemos Mini , you can see this...

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...

An ESP32 and BMA400 acceleration sensor example

In this article we look at another acceleration sensor - this time its the BMA400 and we will connect it to a Wemos Lolin32 Lets...

ESP32 and MCP4725 Digital-to-Analog Converter example

MCP4725 is a single channel, 12-bit, voltage output Digital-to-Analog Converter with integrated EEPROM and an I2C Compatible Serial Interface. Again the easiest way to interface...

ESP32 and Infrared receiver example

In this example we look at how to connect an IR Reciever. Generally, they require Vcc(5v), GND and there is a data out which you connect...

ESP32 and TEMT6000 ambient light sensor

TEMT6000 ambient light sensor is a silicon NPN epitaxial planar phototransistor in a miniature transparent 1206 package for surface mounting. It is sensitive to visible...

ESP32 and TMP102 digital temperature sensor example

In this article we look at the TMP102 digital sensor and we will connect it up to an ESP32 The TMP102 device is a digital...