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 BME680 sensor example

In this article we will connect a BME680 sensor to an ESP32 - in this case its a Lolin32 from Wemos BME680 is an integrated...
esp32 and SHT35 layout

SHT35 humidity sensor and ESP32 board example

In this article we look at the SHT35 humidity sensor, this is very similar to the SHT30 and SHT31 sensors in the same family...

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...

ESP32 and TMP102 digital temperature sensor example

In this article we look at the TMP102 digital sensor and we will connect it up to an ESP32 The TMP102 device is a digital...

ESP32 and GY-21P data to Thingspeak example

In this example we connect a GY-21P sensor to an ESP32 and then we will upload the data to Thingspeak The GY-21P combines a BMP280...

BPI-Bit RGB led matrix test

In this article we take a quick look at the 25 RGB led matrix which is on the BPI-Bit, we will try out a...

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 SHTC1 digital humidity sensor example

In this article we look at another digital humidity sensor - this time its the SHTC1 and we will connect it to our ESP32...

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...

MH ET LIVE ESP32 MINI KIT and Wemos DHT11 shield example

As promised we said we would try out some of the Wemos Mini shields with the MH ET LIVE ESP32 MINI KIT.  Here is...

ESP32 and Si7021 temperature sensor example

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