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 ADS1015 analog-to-digital converter example

The ADS1015 is a precision analog-to-digital converters (ADCs) with 12 bits of resolution offered in an ultra-small, leadless QFN-10 package or an MSOP-10 package. The...

ESP32 and TM1637 7 segment display example

A common display module that you can buy on the internet contain the Tm1638 driver chip, I was interested in this one which is the...

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...

ESP32 and HMC5983 magnetometer example

The Honeywell HMC5983 is a temperature compensated three-axis integrated circuit magnetometer. This surface-mount, multi-chip module is designed for low-field magnetic sensing for applications such...

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...

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...

ESP32 and Max7219 8×8 LED matrix example

The MAX7219/MAX7221 are compact, serial input/output common-cathode display drivers that interface microprocessors (µPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph...

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...

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 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 AM2302 sensor example

AM2302 capacitive humidity sensing digital temperature and humidity module is one that contains the compound has been calibrated digital signal output of the temperature...