ESP32 built in hall effect sensor example

One feature of the ESP32 that sometimes goes unnoticed is the built in hall effect sensor. Lets look at a hall effect sensor and how...

ESP32 and DHT11 sensor example

DHT11 digital temperature and humidity sensor is a composite Sensor contains a calibrated digital signal output of the temperature and humidity. Application of a...

ESP32 and FreeRTOS example create a task

In this example, I will show you how to apply FreeRTOS in Arduino ESP32. Arduino ESP32 is built over FreeRTOS and actually the main...

ESP32 and LM35 temperature sensor

In this example we will connect an LM35 temperature sensor to our ESP32 module The LM35 series are precision integrated-circuit temperature sensors, whose output voltage...

ESP32 and GY-21P readings on a web page

In this example we connect a GY-21P sensor to an ESP32 and then we will display the readings on a webpage Lets recap the GY-21P...

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...

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...

B4R and ESP32 MCP9808 digital temperature sensor example

MCP9808 digital temperature sensor example The MCP9808 digital temperature sensor converts temperatures between -20°C and +100°C to a digital word with ±0.5°C (max.) accuracy. The...

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...

ESP32 and Si4703 FM radio example

The Si4702/03 FM radio receiver family increases the ease and attractiveness of adding FM radio reception to mobile devices through small size and board...
esp32 and SHT30 layout

SHT30 humidity sensor and ESP32 board example

In this article we look at the SHT30 humidity sensor There is an Arduino based library as well so we will use the Arduino IDE...

ESP32 and BMP180 sensor example

This bmp180 from Bosch is the best low-cost sensing solution for measuring barometric pressure and temperature. The sensor is soldered onto a PCB with...