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Category: <span>project</span>
Home Archive for category "project" (Page 2)

Category: project

pic micro, project

Programmable Timer Switch

December 3, 2012 July 17, 2020  lcd, pcb, pic, schematics, timer 58

Finished unit mounted on the wall, in use. Introduction This project, like others before, has started out of need: our 30+ year old mechanical timer for the central heater of the house has finally given it up. It would have been faster and cheaper to get a replacement from the …

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project, retro

Relative Clock/Timer/Alarm

October 20, 2012 July 17, 2020  alarm, clock, pcb, retro, schematics, timer 0

Introduction  Towards the end of the ’80s, when I started out in electronics, one day I decided to make a special alarm clock: one, that, when the time comes, switches on some device in my room – be it a radio, TV or anything else. At the time microcontrollers were …

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project, retro

TV Auto-off from the ’80s

October 1, 2012 July 17, 2020  pcb, retro, schematics, timer, tv 2

Introduction In the eighties most TV sets did not have the sleep function that is standard on today’s TVs. My grandfather was known to fall asleep about 5 minutes into watching any program on TV in the evening. Then, the TV would go on all night long. Those TVs in …

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pic micro, project

Washing Machine Monitor

July 6, 2012 July 17, 2020  MMA7361, pcb, pic, schematics 14

Introduction About a year ago we bought a new washing machine which seems to work nice, but it lacks a very important feature: it doesn’t notify me when the washing is done. I usually start a new load in the morning and, even though the programs usually finish in about an …

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pic micro, project

PIC based 3-axis accelerometer

April 21, 2012 July 17, 2020  accelerometer, led, pcb, pic, schematics 21

Introduction At the time of writing this article I cannot really recall why I started out on this project in the first place. Maybe, because some time ago I was experimenting with the built-in analogue-digital converters of some PIC micros and was thinking that they could be used easily to …

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life hack, project

ATX Bench Power Supply v2.0

March 10, 2012 July 17, 2020  atx, diy, power, repurposing 2

Introduction I have been quite satisfied with the desktop power supply I made from an old PC power supply. My only problem with is that it takes up a lot of space on my desk. I have been long thinking how I could reduce its size and finally I realized …

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Lil Bang (Sound Trigger for Cameras)
camera, pic micro, project

Lil Bang (Sound Trigger for Cameras)

February 13, 2012 July 17, 2020  pcb, pic, schematics, sound, trigger 126

Introduction Now that I can take pictures of lightning I decided that I also want to be able to trigger my camera with sound. The design I came up with has the following features: Controlled by a PIC micro (PIC16F886). Adjustable sensitivity Adjustable delay – i.e. the user can set …

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pic micro, project

Dual PIC Thermometer

December 24, 2011 July 17, 2020  7 segment, led, pcb, schematics 75

Introduction The geek inside me has always wanted a fridge that shows the inside temperature for both the freezer and the fridge compartments. However, when we recently replaced our very old fridge we ended up getting a new one without the built in thermometer. So I decided that one of …

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life hack, pic micro, project

IKEA Mood-light Conversion

December 18, 2011 July 17, 2020  ikea, led, light, pcb, schematics 2

Introduction This little project was one of my first projects with microcontrollers. First, I made the circuit then, for years, I was wondering what I could do with it, until one day I came across this IKEA plastic bag dispenser. I knew immediately, it would make a perfect “housing” for …

Continue reading"IKEA Mood-light Conversion"
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