hacklab.to

We had a great turnout at Andrew’s LED workshop. It was attended by regular Hacklab members and some new faces who were visiting the lab for the first time.

Andrew discussed the basics of how semiconductors and diodes behave, and how to calculate the related currents and voltages in the circuit. He showed to drive low-power LEDs simply with a current-limiting resistor, and the limitations of that design. He went on to show a circuit for an active constant-current method of driving high power LEDs, and demonstrated various models in LTSpice.

Thanks to everyone who attended the workshop, and thanks to Andrew for presenting it! Watch this blog (and our @hacklabto Twitter) for notices of future electronics and craft workshops at the Hacklab.

Unfortunately Andrew has to reschedule the LED workshop, so it will NOT be held tomorrow! It will be held on Sunday, August 8 at 14:00 instead. Update your calendars!

IMPORTANT UPDATE: (2009-03-30) The workshop is now full. – Andrew

Okay electronics and music enthusiasts, it’s time to get out your soldering irons! (or buy one if you don’t have one yet) We’re going to build Theremins! (no experience required) If you’re not familiar with this amazing musical instrument, check out the following video of Clara Rockmore, or read the Wikipedia page.

We’re going to build a design by the late great Robert Moog. The circuit is excellent, easy to build, and you’ll end up with a professional-quality instrument on par with any commercial model.  This is a great opportunity to learn some soldering and electronics skills and build a unique project. We’re going to provide kits since many of the parts are hard to find and expensive in single quantities. Here are the important details:

• Andrew Kilpatrick will lead the group
• Members and non-members are invited to take part – no electronics experience is necessary
• A maximum of 6 spaces are available this time around
• 4-6 workshops on Wednesday nights to build the project (extra time available as needed)
• Parts and supplies will cost approx. $120 – Please pay in advance to reserve your space.
  • includes quality parts, PCBs, power supply, connectors, controls
  • includes an acrylic laser-cut control panel (your choice of colour!)
  • doesn’t include a wooden enclosure – we can build some here if someone wants to help
• Andrew is designing an optional amplified speaker which you can build for approx. $50

Please email Andrew: hacklab-mail at andrewkilpatrick.org to express your interest and reserve a space. Once we have six people signed up and paid up we’ll get the parts and start building.  Andrew will mail participants with more details.