Tiny CPU Rebirth?
With the Backcountry Data Logger more or less finished (just waiting for the PCB), my thoughts have returned to my neglected Tiny CPU project. I did a huge amount of design work on Tiny CPU about a year ago, finishing…
Steve
Living on the Edge
I just applied 4 years worth of WordPress updates in one go, without making any backups first. What could go wrong?
Micropower Data Collection
Hallelujah! After substituting an external 32768 Hz crystal as the timer clock source for my hiking data logger, I’ve reduced the sleep mode (LCD off) supply current to less than 0.01 mA! It’s actually below the resolution of my multimeter– the meter…
Pressure and Temperature Demo
In my last post, I described an idea for a hiking data analyzer based around an old cell phone LCD, a pressure/temperature chip, and an ATmega microcontroller. Since then, I’ve received the parts and built a simple demo that exercises…
Hiking Data Analyzer
It’s new project time, and I’ve decided to try my hand at building a data logger/grapher/analyzer for long-distance hikers. In August I’ll be hiking the John Muir Trail, a 211 mile wilderness trail through remote parts of California’s Sierra Nevada mountains. My…
Mapping the Tranz 330
The VeriFone Tranz 330 point of sale terminal and its cousins are great platforms for electronics tinkerers. Commonly available from surplus stores or eBay for around $10, these little boxes contain a complete 8-bit computer, with lots of intersting I/O…
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