2/17/2023 0 Comments Adafruit trinket 5v power mampsOf course the Going Further section discussed chaining the circuit to additional digits. It was digital magic to take pulses, count them in binary, then have the binary display as an LED digit. Chapter 5 combined several concepts: 555 timer pulse generator, 7490 decade counter and the 7447 binary to 7 segment decoder. I was fascinated with LEDs, 7 segment displays, and digital counting. Without the Internet, hobbyists used books and periodicals such as Popular Electronics to learn about circuitry. After experimenting with Radio Shack kits and schematics, I started working with digital circuits. The second in a series, I'll list some of the projects I did back a generation ago. The Pong game I ported has a few bells and whistles the example does not I have tried these examples with the Adafruit 1.8" TFT Display and they work with it as well (although I did not try the SD card bitmap as I didn't have everything to do it).
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