Don Wilcher uses a Raspberry Pi Pico to build an adjustable clock with an LED display then integrate the clock with a vintage Radio Shack Science Fair Microcomputer Trainer programmed to function as a 7-bit binary counter.
Long before the Heathkit 6800 microcomputer learning system, the Arduino Uno, or the Basic Stamp, there was Radio Shack’s Science Fair Microcomputer Trainer kit. Introduced in 1985, this easy-to-program kit was intended to teach users how microcomputers worked.
In this project article, we’ll upgrade this vintage microcomputer by building and adding an adjustable Raspberry Pi Pico clock with an LED display. After assembling the hardware, we’ll program the trainer to operate as a 7-bit binary counter. Before any of that, though, let’s spend some time learning about the trainer’s features—and, in particular, about the TMS1100 microcontroller at its core.
Don adds a Raspberry Pi Pico programmed in MicroPython, making an adjustable digital clock.
Read the details in the post here.
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