Thursday, March 29, 2012

Video Blog Episode #12 - Yihua 8508D Updated Impressions

In this episode I ramble on about various GPIBUSB delays (which have all been solved!) then go on to talk about some updated impressions I have of the Yihua 8508D hot air rework station now that I've used it for a bit.

Sunday, March 25, 2012

Video Blog Episode #11 - GPIBUSB revA vs revB

In this video I show off the revB PCB of my USB-to-GPIB adapter, I compare the board to revA, talk about the reasoning behind some of my decisions, and the mistakes I've encountered.

Tuesday, March 13, 2012

Video Blog Episode #10 - Serial Baud Rate Errors

Woohoo 10 episodes! Thanks for watching and reading so far everyone!

In this episode I talk about how to calculate the crystal frequency that you need for a desired baud rate.

Video Blog Episode #9 - Business and Adapter Updates

In this episode I talk about the business plans that I mentioned in episode #8. I go on about my motivation for starting an OSHW business and the general direction I want it to head in. I also show off all the parts for my usb-gpib adapter that have arrived, with a distinct lack of one important component.

Wednesday, March 7, 2012

Video Blog Episode #8 - Wien Bridge and Pierce Oscillators

In this episode I talk about two types of oscillators: the Wien bridge oscillator and the Pierce oscillator. I go over the schematics a little bit on the whiteboard, and then prototype both on a breadboard, showing the result on my oscilloscope.