Wolles Elektronikkiste • Die wunderbare Welt der Elektronik

Creating Libraries and Classes – Part I

This post is part 1 of a crash course on libraries and classes. It is designed to help you get started with this complex topic.

nRF24L01 – 2.4 GHz radio modules

Using the nRF24L01 and the RF24 library, you can exchange data between microcontrollers via 2.4 GHz radio. I show how it works.

Using megaTinyCore

Thanks to the package megaTinyCore, you can easily program the ATtinys of the tinyAVR series 0, 1 and 2 with Arduino code. I present several options for the upload of your setches.

ADS1220 – Part 2: Applications

About this post In the last post, I introduced the ADS1220 24-bit, 4-channel A/D converter and my associated library. In this sequel, I will show you how to…

4-channel, 24-bit ADC ADS1220

I introduce the ADS1220 4-channel, 24-bit A/D converter and my associated library using several example sketches.

TinyWireM vs. Wire for ATtinys

To save valuable flash memory on ATtinys when using I2C, you can use alternatives to Wire.h such as TinyWireM. I show how it works.

Programming ATtiny with Arduino code

The ATTinyCore package enables you to program a large part of the ATtiny family via the Arduino IDE. I show how this works with or without bootloader.

MCP23x1y Port Expander

I compare the members of the MCP23x1y family: MCP23016, MCP23017, MCP23S17, MCP23018, MCP23S18 and show how to control them.

The MOSFET as Switch

I show how to use a MOSFET as a switch and which parameters are relevant for the selection of the right MOSFET.

EEPROM Part 3 – External SPI EEPROMs

Compared to I2C-based EEPROMs, writing data to SPI EEPROMs is faster, especially for bulk uploads. I explain how this works and will introduce my library for the SPI based EEPROMs.