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 Si7021 temperature sensor example

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

ESP32 and basic TEA5767 example

The TEA5767HN is a single-chip electronically tuned FM stereo radio for low-voltage applications with fully integrated Intermediate Frequency (IF) selectivity and demodulation. The radio...

LPS22HB absolute pressure sensor and ESP32 example

In this article we look at a pressure sensor - this time its the LPS22HB and we will see how we can get this...

A look at the ESP32 PICO KIT development board

ESP32-PICO-KIT is an ESP32-based mini development board produced by Espressif. The core of this board is ESP32-PICO-D4 - a System-in-Package (SiP) module with complete Wi-Fi...

ESP32 and a L3GD20 sensor example

The L3GD20 is a low-power three-axis angular rate sensor. It includes a sensing element and an IC interface capable of providing the measured angular rate...

Publishing messages to MQTT topic using an ESP32

In this example we will connect to an MQTT topic, I used a Wemos Lolin32 - you can use any ESP32 development board We used...
esp32 and veml7700 layout

An ESP32 and VEML7700 lux sensor example using the Arduino IDE

In this article we look at the VEML7700  which is an ambient light digital 16-bit resolution sensor - we will take a look at...

ESP32 and MAG3110 magnetic sensor example

The MAG3110 is a small, low-power digital 3D magnetic sensor with a wide dynamic range to allow operation in PCBs with high extraneous magnetic...

ESP32 and a PCF8574 expander example

The PCF8574 is an 8 bits I/O port expander that uses the I2C protocol. Using this IC, you can use only the SDA and...

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...

ADS1115 analog-to-digital converter and ESP32

The ADS1115 device (ADS111x) is a precision, low-power, 16-bit, I2C-compatible, analog-to-digital converters (ADCs) offered in an ultra-small, leadless, X2QFN-10 package, and a VSSOP-10 package....