futz f&ts v.i. To tinker experimentally; to change something just to see what it does

So I drew up a board for the Silicon Labs CP2102 chip and made all the improvements I wished I had done on the CP2101 board. Great little ICs. I drew the board much more compact this time and left off the unnecessary extra pads. Once again I had the boards made at DorkbotPDX and as usual they came...

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So I wanted to buy a Macetech ChronoDot but they were constantly out of stock. So I drew up something similar and had some boards made. They work great.

Mine uses a CR2032 cell rather than the smaller CR1632 that the ChronoDot uses. I use the bigger cell because I get my battery holders off old...

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I got tired of building the Myke Predko 2-Wire LCD circuit over and over and/or having one breadboard always used up so I'd have one handy. So I designed a PC board with the circuit on it. And, since I had tons of extra space under the LCD I added a Maxim DS3234 RTC and a battery holder under ther...

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To decode Sony SIRC codes output by my Harmony 880 remote control, I connected a Panasonic PNA4602M infrared sensor to P0.4 (CAP0.1). It's a 38kHz type sensor, so it works great with standard remote controls. Rather than work blind, I connected a 16x2 character LCD in 4-bit mode with busy flag check...

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I designed a keypad board for the Freescale MPR121 Capacitive Touch Sensor Controller chip and received it in my latest batch of boards from dorkbotpdx.org. I'm really happy with this one. The MPR121 is really easy to use and, though it has tons of internal adjustments and controls to suit almost an...

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