Watchdog Timer
Here you will learn: What is a watchdog timer? How to use it on Arduino (UNO) and AVR MCUs? What to consider using the watchdog timer on the ESP8266 and Arduino Pro Mini.
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Hall Sensors and Reed Switches
Hall sensors and reed switches are electrical components that respond to magnetic fields. I show which variants there are and how to use them.
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DSO 138 – an entry-level oscilloscope
The DSO 138 is an entry-level oscilloscope that has all the essential basic functions. Here you will find an introduction and basic knowledge about oscilloscopes.
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Timer and PWM – Part 2 (16 Bit Timer1)
The 16 bit Timer1 offers more options than the 8 bit timers from part 1 of this post. The similarities and differences are explained in detail.
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Timer and PWM – Part 1 (8-Bit Timer0/2)
Timer and PWM functions of the ATmega328P have only been partially transferred to the Arduino world. I show in detail how to use them in the Arduino IDE.
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Logical operations and port manipulation
Portmanipulation is much faster than the classic Arduino functions. For this, logical operations are the basic tool. Both will be explained in this article.
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IR remote controls
I explain how IR remote controls transmit signals and how to build a remote control yourself. I also present the IRLib2 library.
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IR proximity sensor – how to build it yourself
In this article I show how to build an IR proximity sensor yourself. I present two approaches, one with pulsed signals and one without.
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Sensor comparison – ambient light, proximity, motion
This is the conclusion of my series on distance, proximity, motion, ambient light, gesture and color sensors. I will compare the functions of the different sensors.
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SI1145 ALS, IR, UV and PS sensor
I present my library for the SI1145 module. The essential functions of the SI1145 have been implemented. Example sketches are explained in detail.
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