Матвей, Тимофей и Нил экспериментируют с микросхемами - Часть 1

A commenter fed the AI ​​my posts about teaching schoolchildren digital arithmetic on a breadboard, and the AI ​​responded, in part: "The barrier to entry is high for some students. The project requires an understanding of basic concepts: what a bit, a clock, a shift register, a carry, and a seven-segment display are." This is, of course, complete nonsense. Schoolchildren know about arithmetic carry from learning how to do column addition in second grade. A clock is simply the period between blinks of a light on a clock generator module. They understand a shift register by the movement of the lights, which displays its contents. And they can feel a seven-segment display by plugging a wire into the pins leading to each LED. But let's give the floor to the students themselves. I made a video, but I asked three students to demonstrate what they had learned and were able to build after two or three weekend sessions. They completed some projects with me, and others at home. The youngest, Matvey, had his father helping him at home, but in one of the videos, Matvey is soldering a project in front of me, so it's a fairly straightforward experiment. And this is just the beginning—they started with basic components, but I discussed with them the plan for state machines, ALUs, and the transition to FPGA boards with the SystemVerilog hardware description language, followed by the implementation of an ASIC chip using the Tiny Tapeout service. So: Timofey discusses the counter; Timofey and Neil debug the shift register; Matvey discusses the combinational adder; Matvey discusses the XOR gate; Matvey compares soldering irons. You might hear comments like, "Everything's wrong, where are the resistors?" The circuit with the XOR board doesn't use resistors because: 1. Special 5V-tolerant LEDs are used. 2. The buttons have built-in pull-up resistors. 3. The power supply provides a stable 5 volts. See notes: When teaching schoolchildren digital circuits on breadboards, all resistors should be removed and FIFO-equipped microcircuits should be used. https://habr.com/en/articles/1058154/ Is it possible to train 3-nanometer microcircuit designers by practicing 130 nm? Or 20,000 nm? https://ddvca.com/2022/07/27/fsm-usin... How to teach schoolchildren to work in design groups using multi-board projects https://habr.com/en/articles/1059966/ Chronicles of microcircuit lessons with Russian schoolchildren, not in a French castle, but in a hacker club in California https://habr.com/en/articles/1054982/