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Continue reading →: Tutorial – Using Long Range 315MHz RF Wireless Transceivers with ArduinoYou can send data from one Arduino to another, or create a wireless remote-control system using inexpensive long-range 315MHz or 433MHz wireless data units. Using this tutorial so you can quickly test and use your units, giving you the knowledge to build upon and make your own projects. So let’s…
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Continue reading →: Project – Fun with Arduino-controlled Traffic LightsThe goal of this project is to make a pair of traffic lights that can be used for learning about Arduino digital inputs and outputs – or as the prototype for your own traffic lights in model layouts such as trains, dioramas, LEGO and so on. Imagine a two-way road…
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Tutorial – TCA9548A 1-to-8 I2C Multiplexer Breakout with Arduino
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Continue reading →: Tutorial – TCA9548A 1-to-8 I2C Multiplexer Breakout with ArduinoNow and again you may find yourself needing to use more than one device with the same I2C bus address with your Arduino. Such as four OLEDs for a large display – or seven temperature sensors that are wired across a chicken hatchling coop. These types of problems can be solved…
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Continue reading →: Hewlett-Packard 5082-7415 LED Display from 1976In this article we examine a five digit, seven-segment LED display from Hewlett-Packard, the 5082-7415: We realise they’re most likely now pure unobtanium, but we like some old display p0rn so here you go. 2025 update – Tronixlabs in Australia has a limited quantity of new, old-stock four-digit QDSP6064 displays. Email…
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Continue reading →: Australian Electronics – David Jones interviews Colin MitchellIn this post I would like to share a series of interviews conducted by Dave Jones from eevblog.com. Dave interviews Colin Mitchell from Talking Electronics. Throughout the 1980s and onwards, Colin published a range of electronics magazines, tutorials and a plethora of electronics kits – of which many are still available today.…
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Tutorial – LM3914 Dot/Bar Display Driver IC
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Continue reading →: Tutorial – LM3914 Dot/Bar Display Driver ICThis is the first of two tutorials that will examine the LM391x series of LED driver ICs. In this first tutorial we cover the LM3914, and the second covers the LM3915. The goal of these tutorials is to have you using the parts in a small amount of time and…
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Tutorial – Ethernet Shields and Arduino
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Continue reading →: Tutorial – Ethernet Shields and ArduinoIn this chapter we will introduce and examine the use of Ethernet networking with Arduino over local networks and the greater Internet. It will be assumed that you have a basic understanding of computer networking, such as the knowledge of how to connect computers to a hub/router with RJ45 cables, what an…
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Tutorial – LM3915 Logarithmic Dot/Bar Display Driver IC
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Continue reading →: Tutorial – LM3915 Logarithmic Dot/Bar Display Driver ICIntroduction This is the second of two articles that will examine the LM391x series of LED driver ICs. The first covered the LM3914, and this covers the LM3915. The goal of these is to have you using the parts in a small amount of time and experiment with your driver…
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Tutorial – the Arduino AREF Pin
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Continue reading →: Tutorial – the Arduino AREF PinLearn how to measure smaller voltages with greater accuracy using your Arduino. In this tutorial we’ll look at how you can measure smaller voltages with greater accuracy using the analogue input pins on your Arduino Uno R1 to R3 (not R4!) or compatible board in conjunction with the AREF pin.…
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Tutorial – Numeric Keypads and Arduino
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Continue reading →: Tutorial – Numeric Keypads and ArduinoNumeric keypads can provide a simple end-user alternative for various interfaces for your projects. Or if you need a lot of buttons, they can save you a lot of time with regards to construction. We’ll run through connecting them, using the Arduino library and then finish with a useful example…
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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