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29 Comments

Toner transfer to ABS

  By electrobob December 3, 2010 February 8, 2017 Ideas and Articles, Utils

Yes, apparently you can transfer toner to ABS to make nice project boxes. Continue reading

Tagged   abs, aluminum, box, enclosure, front, frontpanel, frontplate, heat, iron, iron on, panel, pcb, plastic, toner, transfer
42 Comments

LED UV exposure box part 2, the timer

  By electrobob September 29, 2010 February 8, 2017 Projects

Buiding a timer for a PCB UV exposure box. Continue reading

Tagged   7 segment, attiny2313, box, button, countdown, exposure, led, timer, UV
2 Comments

USB tree

  By electrobob September 4, 2010 February 8, 2017 Utils

A nice display for USB devices. Continue reading

Tagged   flash, holder, memory, modem, stick, tree, usb
47 Comments

LED UV exposure box part 1, the box

  By electrobob June 24, 2010 February 8, 2017 Projects

Building a nice UV exposure box to make PCBs. Continue reading

Tagged   box, exposure, led, leds, LM317, pcb, plexi, timer, UV, uv leds
5 Comments

RFM12B mini breakout board

  By electrobob June 22, 2010 February 8, 2017 Utils

A mini breakout board for the RFM12B radio module. Continue reading

Tagged   board, breadboard, breakout, header, Hoperf, mini board, module, radio, RFM12, RFM12B
16 Comments

CoMBi Clock

  By electrobob June 5, 2010 February 8, 2017 Projects

A binary clock that displays hours minutes and seconds using colors on LEDs. Super difficult to read! Continue reading

Tagged   binary, clock, digital, DS3232, led, microcontroller, multiplex, RGB, RTC
44 Comments

Sunrise simulator

  By electrobob April 7, 2010 February 8, 2017 Projects

A DIY sunrise simulator using a high power light, for a soft wake up during the winter time. Continue reading

Tagged   alarm, circuit, clock, dimmer, dusk, light, microcontroller, radio, schematic, sunrise, sunrise simulator, triac
7 Comments

Linear LED power supplies

  By electrobob March 15, 2010 February 8, 2017 Ideas and Articles

How to drive LEDs? WIth constant current supplies, of course. Continue reading

Tagged   constant, current, drop, led, leds, linear, LM317, resistor, supply, transistor, voltage
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    • Sit.Up August 12, 2015
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    • 5UP – simple 5V UPS April 15, 2015
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    • LED UV exposure box part 2, the timer September 29, 2010
    • USB tree September 4, 2010
    • LED UV exposure box part 1, the box June 24, 2010
    • RFM12B mini breakout board June 22, 2010
    • CoMBi Clock June 5, 2010
    • Sunrise simulator April 7, 2010
    • Linear LED power supplies March 15, 2010

  • Links

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    • Hack a day
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