Wolles Elektronikkiste • Die wunderbare Welt der Elektronik

ATmega328PB based boards

I will go into the differences of the ATmega328PB vs. the ATmega328P and introduce three 328PB-based boards and board packages.

HC-14 – the simple LoRa module

With the HC-14 module, you can use LoRa wireless technology very conveniently via simple serial functions such as println(). I’ll show you how it works.

Serial and SoftwareSerial

In this article, you will learn how Serial and SoftwareSerial work, which functions are available to you and how to use them.

Using LoRa with the EByte E220, E22 and E32 series

With the Ebyte LoRa modules from the E220, E20 and E32 series, you can send data over long distances with low energy consumption. An overview and introduction.

Character Arrays vs. Strings

Character arrays are less convenient than strings, but save resources. I show that character arrays are in no way inferior to strings in terms of functionality.

Using FreeRTOS with ESP32 and Arduino

FreeRTOS is a real-time system, with which multitasking can also be realized on relatively small MCUs. This article is an introduction to the topic, whereby I will limit myself to the ESP32 and the AVR-based Arduinos.

Arduino Nano Every – a deep dive

The Arduino Nano Every is much more than just an upgraded Arduino Nano. Its underlying ATmega4809 opens up a wide range of possibilities. The article provides an in-depth insight.

Interrupts – Part 3: Timer Interrupts

The programming of timer interrupts is hardware-specific. I show in detail how it works on the ATmega328P, ATtiny85, ESP8266 and ESP32.

Interrupts – Part 2: Pin Change Interrupts

Part 2 of my series about interrupts deals with pin change interrupts. These are specific for AVR based Arduino and MiniEVB boards.

Interrupts – Part 1: External interrupts

Interrupts can be used to solve many challenges in microcontroller programming. However, there are also some stumbling blocks. This first part is about external interrupts.