ESP32 and GY-21P module

The GY-21P is an interesting module in that it combines a BMP280 sensor and an SI7021 sensor. The on-board BMP280+SI7021 sensor measures atmospheric pressure...

VEML6075 ultraviolet (UV) light sensor and ESP32

The VEML6075 senses UVA and UVB light and incorporates photodiode, amplifiers, and analog / digital circuits into a single chip using a CMOS process....

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 DS3231 RTC example

The DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery...

VL53L0X Time-of-Flight sensor and ESP32

The VL53L0X is a new generation Time-of-Flight (ToF) laser-ranging module housed in the smallest package on the market today, providing accurate distance measurement whatever...

ESP32 and Max6675 example

In this example we take a look at the MAX6675 Cold-Junction-Compensated K-Thermocouple-to-Digital Converter The MAX6675 performs cold-junction compensation and digitizes the signal from a type-K thermocouple....

ESP32 True random number generator example

The ESP32 contains a hardware random number generator, values from it can be obtained using esp_random(). When Wi-Fi or Bluetooth are enabled, numbers returned by...

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 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 BMI160 sensor example

The BMI160 is a small, low power, low noise 16-bit inertial measurement unit designed for use in mobile applications like augmented reality or indoor...

ESP32 and MLX90614 infrared thermometer example

The MLX90614 is a non-contact infrared thermometer with a measurement range from -70 to +380 degree Celsius. Just connect the four leads to your...

ESP32 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...