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...

ESP32 and MMA8451 accelerometer example

The MMA8451 is a low-power accelerometer with 14 bits of resolution, with the following features: Embedded functions with flexible user-programmable options, configurable to two interrupt...
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 MPU-9250 sensor example

The MPU-9250 is the company’s second generation 9-axis Motion Processing Unit™ for smartphones, tablets, wearable sensors, and other consumer markets. The MPU-9250, delivered in...
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...

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...

ESP32 True random number generator example

The ESP32 contains a hardware random number generator, values from it can be obtained using esp_random(). When Wi-Fi or Bluetooth are enabled, numbers returned by...

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 MS5611 barometric pressure sensor example

This barometric pressure sensor is optimized for altimeters and variometers with an altitude resolution of 10 cm. The sensor module includes a high linearity...

MH ET LIVE ESP32 MINI KIT and OLED shield example

In this example we look at another terrific little low cost shield for the Wemos mini, this time its the OLED shield. In this...

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...

bpi:bit and scroll:bit display examples

In a previous article we looked at the scroll:bit, this is an add on from Pimoroni which contains a lot of LEDs, in fact...