How to interact with a SD card from the ESP32, using the Arduino core.
ESP32: Getting pressure measurements from a BMP388 sensor
How to obtain barometric pressure measurements from a BMP388 sensor, using the ESP32 and the Arduino core.
ESP32 PS4 Controller: Controlling a DC motor
How to control a DC motor using an ESP32 and a PS4 controller
Micro:bit MicroPython: Controlling a DC motor
In this tutorial we will check how to control a DC motor using the micro:bit board and MicroPython. Introduction In this tutorial we will check how to control a DC motor using the micro:bit board and MicroPython. Since we can't use the micro:bit to directly power the DC motor, we will use a ULN2803A integrated …
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ESP32 Arduino HTTP server: controlling a relay remotely
Controlling a relay remotely via HTTP using the ESP32.
ESP32 Arduino: Controlling a buzzer with PWM
How to control a buzzer with PWM, using the ESP32 and the Arduino core.
ESP8266: Interfacing with a 4×4 Matrix Keypad
The objective of this post is to explain how to use a 4x4 matrix keypad with the ESP8266. For simplicity, we will assume the use of the ESP8266 integrated in a NodeMCU board. Introduction The objective of this post is to explain how to use a 4x4 matrix keypad with the ESP8266. For simplicity, we …
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ESP8266: Controlling a relay
How to use the ESP8266 to control a relay.
ESP8266: Using a rain sensor
How to detect rain drops using the ESP8266, external interrupts and a rain sensor.
Electronics: Rain Sensor
The objective of this post is to describe a cheap rain sensor that can be used to detect rain with microcontrollers such as the Arduino or the ESP8266. Introduction The objective of this post is to describe a cheap rain sensor that can be used to detect rain with microcontrollers such as the Arduino or …
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