ESP32 and Si7021 temperature sensor example

The  Si7021  I2C Humidity  and  Temperature  Sensor  is  a  monolithic  CMOS  IC integrating   humidity   and   temperature   sensor   elements,  ...

ESP32 and MCP23017 flashy led example

The is a 16-bit, general purpose parallel I/O port expander for I2C bus applications. The 16-bit I/O port functionally consists of two 8-bit ports (PORTA...

OPT3001 Digital Ambient Light Sensor and ESP32 example

In this example we will connect an OPT3001 to an ESP32 The OPT3001 is a sensor that measures the intensity of visible light. The spectral...

LIS3DSH accelerometer sensor and an ESP32

In this example we connect a LIS3DSH sensor to an ESP32. The LIS3DSH is an ultra-low-power high-performance three-axis linear accelerometer belonging to the “nano” family with...
ESP32 and PCT2075

PCT2075 temperature-to-digital converter and ESP32 board example

In this example we connect a PCT2075 temperature-to-digital converter to an ESP32 First lets look at some information about the sensor from the manufacturer The PCT2075...

An ESP32 and HMC5883L sensor example

The Honeywell HMC5883L is a surface-mount, multi-chip module designed for low-field magnetic sensing with a digital interface for applications such as lowcost compassing and...

ESP32 and MLX90393 magnetic field sensor example

The MLX90393 magnetic field sensor can be reprogrammed to different modes and with different settings at run-time. The sensor offers a 16-bit output proportional...

MH ET LIVE ESP32 MINI KIT and the Wemos SHT30 shield

In this example we will connect an SHT30 shield to our MH ET LIVE ESP32 MINI KIT,  here is the shield SHT30 Shield For WeMos D1...

ESP32 and MPL3115A2 absolute pressure sensor example

The MPL3115A2 is a compact, piezoresistive, absolute pressure sensor with an I2C digital interface. MPL3115A2 has a wide operating range of 20 kPa to...

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 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...

ESP32 and Bargraph display example

The bar graph is basically a series of LEDs in a line, this is a common hardware display for analog sensors. It's made up...