Pointers and references
Pointers and references are very useful, but equally confusing, especially for beginners. This is an attempt to bring some light into the darkness.
Read MoreTag: Arduino
SD cards and SD card modules
SD cards are the medium of choice for storing large amounts of data. I show how to control SD card modules with the Arduino.
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Creating Libraries and Classes – Part II
In the second part of the post about libraries and classes, I use the MPU6050 to show how you write Arduino libraries for sensors or other devices to be controlled and what typical issues arise.
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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.
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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.
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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.
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MCP23x1y Port Expander
I compare the members of the MCP23x1y family: MCP23016, MCP23017, MCP23S17, MCP23018, MCP23S18 and show you how to control them.
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EEPROM Part 2 – external I2C EEPROMs
I show how you can use I2C controlled EEPROM ICs with your microcontroller. This works very comfortably with a library, but it can also be done without it.
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Logic Analyzer
The Logic Analyzer is a low-cost tool that allows you to analyze signals such as I2C, SPI, PWM and much more. I introduce the Analyzer and the Logic 2 software.
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Using WiFi with the ESP8266 and ESP32
I show you step by step how to network and control your ESP32 or ESP8266 boards via WLAN and how to exchange data between them.
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