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Continue reading →: Tutorial – Using the 0.96″ 128 x 64 Graphic I2C OLED Displays with ArduinoLearn how to set up SSD1306 OLED displays with Arduino
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Continue reading →: Tutorial – LED Real Time Clock Temperature Sensor Shield for ArduinoLearn how to use this fun and useful LED Real Time Clock Temperature Sensor Shield for Arduino
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Continue reading →: Tutorial – Arduino and Four Digit Seven Segment Display ModuleThis module offers a neat and bright display which is ideal for numeric or hexadecimal data.
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Continue reading →: Control your Arduino over the Internet using Blynk
2025 update: Oops. Blynk has changed in the last few years into a product that is outside the scope of this website. Nevertheless, check it out as their products will solve all sorts of IoT-type problems. If you find this sort of thing interesting, please consider ordering one or more…
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Continue reading →: Tutorial – Using DS1307 and DS3231 Real-time Clock Modules with ArduinoLearn how to use DS1307 and DS3231 real-time clock breakout boards with Arduino
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Continue reading →: Tutorial – x (twitter) and Arduino
Updated for 2025. Unfortunately the service used to interface between the Arduino and x has now become defunct. It had a good run, over ten years. When I come up with a new way of sending tweets from an Arduino or compatible board, I’ll publish it on this website. In…
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Continue reading →: Tutorial – Reading RFID tags with Arduino
RFID – radio frequency identification. Some of us have already used these things, and they have become part of everyday life. For example, with electronic vehicle tolling, door access control, public transport fare systems and so on. It sounds complex – but isn’t. To explain RFID for the layperson, we…
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Continue reading →: Tutorial – Arduino and the TLC5940 PWM LED Driver IC
In this article we are going to examine the Texas Instruments TLC5940 16-channel LED driver IC. Our reason for doing this is to demonstrate another, easier way of driving many LEDs – and also servos. First up, here is a few examples of the TLC5940: The TLC5940 is available in…
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Continue reading →: Tutorial – Arduino and the MAX7219 LED Display Driver IC
Sooner or later Arduino enthusiasts and beginners alike will come across the MAX7219 IC. And for good reason, it’s a simple and somewhat inexpensive method of controlling 64 LEDs in either matrix or numeric display form. Furthermore they can be chained together to control two or more units for even…
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Continue reading →: Kit Review – Sinclair Cambridge CalculatorBuilding a calculator kit from 1973
Hello,
I’m John Boxall
Welcome to my website “tronixstuff”, a cosy corner of the internet dedicated to our world of electronics. Here, I invite you to join me on a journey of learning by that started in 2010. My amateur radio callsign is VK4JBX.
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