ESP32 and HDC1008 temperature sensor example

In this example we will be connecting an HDC1008 module to an ESP32 module, we used a Lolin32 from Wemos but other makes should...

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...

LOLIN D32 Pro and Barometric Pressure Shield example

In this article we connect a HP303B Barometic shield to a LOLIN D32 Pro, using the new board you can connect them using a...

ESP32 and IR Line tracking sensor example

This is another example using a sensor from the 37 sensor kit, this time we use the one called the KY-033 Hunt sensor module. A...

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...

ESP32 and MCP9808 digital temperature sensor example

In this example we connect the MCP9808 to the ESP32 The MCP9808 digital temperature sensor converts temperatures between -20°C and +100°C to a digital word...

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 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 RFID-RC522 module example

In this example we will connect an RFID-RC522 module and connect to an ESP32 Wemos LOLIN32 The microcontroller and card reader uses SPI for communication...

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 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...

ESP32 and BMP280 sensor example

BMP280 is an absolute barometric pressure sensor especially designed for mobile applications. The sensor module is housed in an extremely compact package. Its small...