Another Cheap Oscilloscope

January 26th, 2011 by admin No comments »

Xprotolab Oscilloscope

Here comes another cheap oscilloscope…  For only $30-$35 you get this ATXMEGA 32A4-based MHz two analog channel oscilloscope and waveform generator.  A very small device with a 128×64 OLED display this looks like a great bargain.

Oscilloscope specifications:

  • 2 Analog Channels, 8 Digital Channels
  • Maximum Sampling rate: 2MSPS
  • Analog Bandwidth: 320kHz
  • Resolution: 8bits
  • Input Impedance: 1MΩ
  • Buffer size per channel: 256
  • Max. Input Voltage: +/- 10V

AWG specifications:

  • 1 Analog Channel
  • Maximum conversion rate: 1MSPS
  • Analog Bandwidth: 44.1kHz
  • Resolution: 8bits
  • Low output impedance
  • Buffer size: 256
  • Max. Output Voltage: +/- 2V

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Posted in ATMEGA8, Microcontrollers, Oscilloscopes

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DIY EKG machine

January 18th, 2011 by admin No comments »

Here comes is a neat little project – a DIY electrocardiogram (EKG, also sometimes ECG) machine. For all the hypochondriacs out there – “enjoy”!

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Posted in Biology, DIY, General Electronics, Other Electronics Projects, Science Projects

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Monster Capacitor Bank

December 27th, 2010 by admin No comments »

This is what discharging 40 very big capacitors at the same time do to a beer can:

I think this has some serious magnetic railgun potential too… Hmmm…

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Posted in Crazy Projects, DIY, Fun stuff, General Electronics, Videos

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TV Remote Jammer

December 27th, 2010 by admin No comments »

Remote Control JammerThis is the best idea I’ve seen in a while – infrared control jammer. Although this specific implementation require you to be in the same room as the TV, I can imagine a IR-laser implementation for remote jamming – just point it to the neighbour’s window.

Project is based on a PIC16F628 microcontroller (Microchip).

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Posted in 16F628, Crazy Projects, DIY, Microcontrollers, PIC Microcrocontroller Projects, TV

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Animated LED Cylinder Project

December 27th, 2010 by admin No comments »
LED Cylinder Project

LED Cylinder Project

Here is a nice and colorful DIY for the holidays – a LED cylinder project. ATMEGA168-20PU microcontroller makes 95 RGB LEDs arranged in a 3D cylinder shape look really cool.

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Posted in Arduino, DIY, Fun stuff, General Electronics, Microcontrollers, Other Electronics Projects, Uncategorized

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A serial camera – simple to use with a microcontroller

December 1st, 2010 by admin No comments »

Serial camera

A handy camera for microcontroller projects

If there is something I’ve always wanted to put on an RC-car, it is a camera. The problem is that most webcams have parallel (or nowadays – USB) interface and they are hard to control by a microcontroller. This camera looks to me to be perfectly suited for a remote controlled vehicle DIY project. Add a pair of RF-receiver/transmitters (such as those) and you can get a Mars-rover style toy in no time.

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Posted in Cameras, DIY, Microcontrollers, PIC Microcrocontroller Projects, Radio, Radio Control, Robotics, Wireless

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RC Bowling Ball

November 10th, 2010 by admin No comments »

I want one of these! A radio-controlled bowling ball. Very neat, great implementation and a fun video to watch:

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Posted in Crazy Projects, DIY, Fun stuff, Radio, Radio Control, Robotics, Videos, Wireless

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If it has no other explanation, it must be art…

November 10th, 2010 by admin No comments »
Parallel Transmission of Image Data

Just insane... but cool!

Time for your weekly dose of insanity…  Imagine that you are given the task to design an image transmission device (otherwise known as “TV”).  Imagine also that you have the IQ of a turnip.  This is how you would probably design it – wire each pixel separately.

Note that while this is an extremely inefficient way to transfer information it is also an insanely cool one. Two thumbs up on this projecty!

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Posted in Cameras, Crazy Projects, Fun stuff, General Electronics, TV

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DIY 8-bit computer

November 5th, 2010 by admin No comments »
DIY Ccmputer

DIY Computer

And now, for something completely different – an 8-bin DIY computer, built and programmed from scratch. The Ultim809 is based on  Motorola 6809 processor and has 512KB of RAM. As opposed to the creator of this project I did grow up during the time of the 8-bit computers – this makes it all more fascinating for me. In that context, 512KB of RAM sound like science fiction.

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Posted in Computers, Crazy Projects, DIY, Fun stuff

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Pinout Database

November 5th, 2010 by admin No comments »
LM384 Pinout

LM384 Pinout

This might be the greatest idea I’ve seen from quite a long time – a IC database with fast search that is [almost] wiki-editable, so everybody can contribute. Don’t remember what pin on PIC16F690 was PORTC,3? Or  what was the pinout of an LM384? Give ChipDB a try – you are quite likely going to find what you are looking for. If not, consider contributing a pinout yourself.

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Posted in General Electronics

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