The first Backcountry Logger prototype has gotten a very positive response from everyone I’ve showed it too, so I’m toying with the idea of making a few and selling them. I put together a bill of materials to estimate the…
Oof. See that window to the left? That’s the result of 10 hours of debugging effort on bring-up for my custom Tiny CPU board. What you see is UrJTAG connected to the JTAG interface of the Max II CPLD, and successfully…
Hot diggety damn! I believe I’ve successfully soldered the Max II in its cruel 100-pin package with 0.5 mm pin spacing. At least, I’ve assembled enough of the board to connect it to a JTAG programmer, program an LED blinky…
The Tiny CPU boards arrived yesterday from Seeed Studio’s Fusion PCB service. Now it’s time to break out my soldering iron again, and get busy with that 0.5 mm pitch 100-pin TQFP. Ugh! I placed the order with Seeed on…
The Backcountry Logger is a portable microcontroller-driven device that collects temperature, air pressure, and altitude data, and shows graphs on a built-in screen. It’s intended for hikers, climbers, skiers, and other outdoorsy folks who want to geek out with environmenal…
Hooray, the v1 Backcountry Logger boards have arrived from the PCB manufacturer! This time I used Dorkbot PDX, and the elapsed time from the ordering cutoff date to board delivery was only 12 calendar days. For $5 per square inch, with…
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