Content for 74HC04

74HC04

The 74HC04; 74HCT04 is a hex inverter. The inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Project  MikroLeo

MikroLeo

“MikroLeo project files (schematic, PCB, assembler, emulator/debugger, circuit simulation file, documentation, example of programs etc). MikroLeo is a 4-bit microcomputer developed mainly for educational purposes and distributed for free under open-source licenses. 4-bit Didactic Microcomputer The project is in …

Line Follower Robot Without Using Microcontroller

“Suddenly, I got the idea to make a line follower robot without using a microcontroller. After that, I started researching this topic but can’t find any proper guidance. So I started simulating and building logic for each functionality, such …

Vectron VGA Plus Text Mode

“Vectron VGA Plus Text Mode simplifies displaying text with retro computers and microcontrollers by hiding the pixel-level details. Supply only row and column positions, and an ASCII character code, to write text to a 40x30 character VGA display. How It …

NeoPixel Punk Console

“Blinking RGB LEDs with 555s and a handful of 74-series logic The goal of this project is to display colorful patterns on a strip of WS2812 or SK6812 RGB LEDs (aka NeoPixels) without the help of an MCU. Addressable RGB …

BreadBin computer

“After various experiments and failed attempts to design a 7400-based computer, I came to a quite minimalistic 8-bit approach which is nevertheless pretty versatile and can utilize a surprisingly large amount of memory resources. The CPU core itself executes its …

Complete Mechanical 7 Segment Display

“Hello and welcome back! Over the last few months, I am in the process of making a mechanical 7 segment display that uses PCB coils or electromagnets to actuate the segments. I had a lot of fun while learning new …

Pineapple ONE

“32 bit RISC-V homemade In this article I will describe how I designed and made a functional 32 bit RISC-V CPU at home. Specifications: “Max” clock speed: 500 kHz Program memory: 512 kB RAM size: 512 kB VGA …

Mechanical 7 Segment Display V2

“Hello and welcome back to another Instructable. In the previous two Instructables, I have shown you how I created PCB coils in Kicad using a Python script, covered the basics of an H bridge, and showed you how I will …

MK1 8bit Computer

“The MK1 CPU is composed of several modules, all connected trough a common 8-bit BUS, the status of each module is shown by dedicated LEDs. The clock module is designed to allow step-by-step execution; in automatic mode the clock speed …

6502 standalone computer

“A minimal 6502 computer that can be programed machine language without PCs I have developed a minimal 6502 computer that can be programed machine language without PCs. The concept is the following three. (1) Minimize the number of peripheral standard …