Simple Z80 test design - single board with all the basics and a few luxuries.
**NOTE EasyEDA shows the most recent WIP for this project, which might be part way through me making changes. Before using the PCB layout please do get in touch (comment or message) so I can let you know if what you're seeing is stable! I create labelled versions of the project, but EasyEDA doesn't allow me to publish a...
An 7 instruction, 4-bit Processor with a serial Arithmetic Logic unit with 4 operations (OR,ADD,SUBTRACT,MULT) that I designed in my free time. feel free to use the design for whatever you want as long as you credit the original :)
0000(With data input): ADD
*Input bus (D0-3) Swiches between data...
This is a CP/M 2.2 computer (pre-IBM). It is working.
It is unique in that it uses the the SIM/RIM instructions and SID/SOD/RST6.5 pins for Serial IO. It uses a 5V USB serial adapter for power and communication to your computer (using a serial terminal program).
There two problems with this approach in that the processing delays between Serial IO means that character can be missed if data is sen...
ESP32-WROOM-32 is a powerful, generic Wi-Fi+BT+BLE MCU module that targets a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding.
At the core of this module is the ESP32-D0WDQ6 chip*. The chip embedded is designed to be scalable and adaptive. There are two CPU cores that can be individu...