Wednesday, April 21, 2010
Saturday, April 10, 2010
DSO Nano
New very portable lab instrument: DSO Nano by Seeed Studio scope with upgraded third-party firmware (Paul). Great folks to work with, I highly recommend Seeed Studio. You can go directly to their site by clicking on the title to this post.
Thursday, April 8, 2010
Monday, April 5, 2010
15th Mass Infantry Company K
Hersey Estes, great-great-grandfather, served (1861-1863) in all the major battles of the Army of Potomac from Ball's Bluff through Antietam where >50% of his regiment was lost in 30 minutes when outflanked in the West Woods....no other regiment suffered a greater loss for the day....I'm lucky to be here!
Clicking on the title of this post will bring you to an exceptional research site on the 15MVI.
Saturday, April 3, 2010
Sunday, March 28, 2010
Frog Flash
D2 design for a sophisticated secondary flash-on-a-stick with optical slave circuit cobbled together with photo resistor out of printer and a high voltage triac from something else; works great....will use shortly for spring frog photo quest as peepers recover from recent very cold night....
Sunday, March 14, 2010
Web Server Audio Amplifier Interface Board
D3 work in process on interface board to be installed inside web audio amplifier chassis: includes 6 gain controlled amps, 2 shift registers, 12 bit ADC, 10bit DAC, 3 volume/tone control ics, 44amp HEXFET and connector (on right) for PIC-WEB.
Monday, March 8, 2010
Eprom Array Out of GPS
D3 prototype board with a pair of eproms out of a handheld GPS, interfaced through shift registers to Arduino processor with relays for switching programming voltage.
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