Other parts Archive • Wolles Elektronikkiste

TCA9548A – I2C Multiplexer

I show you how to use up to eight I2C components with the same address with the I2C multiplexer TCA9548A. Alternatively, you can use MOSFETs as well for this purpose.

DCF77 – Radio Controlled Clock

Here you will learn what the DCF77 radio clock signal is, how to receive it, how to evaluate it and how to use it optimally together with the library RTCLib.

DS3231 – Real-time clock

In this article I will present the features of the real-time clock (RTC) DS3231 and how you can use it with the RTCLib library.

Remote shutter for smartphones

I show you how to hack a remote shutter for your smartphone to control it via an Arduino. Moreover: problem-solving for long-term operation.

Voltage regulation – linear and switching regulators

Many projects require a defined voltage level. I’ll show you how you can use linear and switching regulators and how they work.

LED dot matrix display control

I show you how to control an LED matrix display and how you can create a running font. I use the LedControl library, but I also show how to do it without.

LM393 – turns analog into digital

Using the LM393, analog sensors can deliver digital signals. This can make programming much easier. In this article I will show you how this works using an LDR (light dependent resistor).

LTC6995 – Long Timer, Low Frequency Oscillator

The LTC6995 covers periods from one millisecond to 9.54 hours. It is suitable e.g. as an oscillator, power-on reset tool, sleep mode alarm clock and watchdog timer.

Port expander MCP23017

The 16-bit I/O port expander MCP23017 is introduced including a library. The functions are explained by sketches and circuits.

Counter ICs

The counter ICs 4040, 4017 and 4033 will be presented. In addition to the counter function, I explain how to use the counters for port expansion.

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Wolles Elektronikkiste

Die wunderbare Welt der Elektronik

Category: Other parts