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 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...

ESP32 and Infrared receiver example

In this example we look at how to connect an IR Reciever. Generally, they require Vcc(5v), GND and there is a data out which you connect...

ESP32 and TEMT6000 ambient light sensor

TEMT6000 ambient light sensor is a silicon NPN epitaxial planar phototransistor in a miniature transparent 1206 package for surface mounting. It is sensitive to visible...

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 DS3231 RTC example

The DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery...

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...

Using SHA-256 with an ESP32

In this example we will look at how you can generate the hash of a string using the SHA-256 algorithm. We will use the...

HDC2080 humidity and temperature sensor connected to a ESP32

In this article we look at yet another humidity and temperature sensor from TI - this time its the HDC2080 which we will connect...

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...

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 L9110 fan module example

In this example we connect an ESp8266  to a dual L9110 fan module. This is a commonly found, basic low cost module which consists...