Yearly archives: 2015



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Recently, while developing a line of sensors, we had a little fun working with a Raspberry Pi module. Like all things open-source, documentation can be a little sparse, out of sync, inconsistent, and difficult to follow; worse, it’s often organized as a reference as opposed to a lesson. We distilled […]

Raspberry Pi – Python V3 I2C Support


An error message is emanating from our beloved Racal Dana 1992 Frequency Counter. It’s a classic but useful piece of test equipment, and we’d hate to see it go. Poring over the service manual, the timing error correction hybrid (TEC) is supposed to have a stop count of 800 +/-220; […]

Racal Dana 1992 Repair



how much eye candy can a post about putting dos on a usb stick require?
There’s a lot of old hardware operating out there, and many a test/interface suite still exists in old-school DOS. Moving these antique applications into a modern computing environment with all the extensibility and reusability we’ve come to know and love requires being able to at least see the old application […]

FreeDOS on a Stick