If youβd like to return to a time when your computer had very accessible components, a microprocessor, RAM, ROM, and I/O chips all hanging from an exposed bus, you can do so by building your very own BASIC color microcomputer with theΒ CB2 micro kitΒ in under 30 minutes for as low as ~$28.
The kit was designed to be plain simple and very affordable being tailored to those who donβt have access to regular retro computers but would want to have fun with these types of technologies or even learn and experiment withΒ BASIC.
CB2Β is very easy to assemble, it works like the micros from the β80s except it is cheaper and much easier to use. It works directly with a TV and keyboard, no PCβs required, and it can be used as a standalone microcomputer to run games and applications. It can alsoΒ be used for automation processes without using a monitor or keyboard and even as a measurement instrument for hobbyists.
CB2βsΒ firmware is based on an open-source project built byΒ Joerg WolframΒ (called AVR ChipBasic2). It utilizes standard interfaces such as RS-232, UART, LPT, I2C, etc. to communicate with devices like control modems with anΒ ATmega644P chip (ATMEGA644P-20PU or ATMEGA644PA-PU), which connects up to a PS2 keyboard port, as well as a 9-pin connector for serial operations.
The CB2 micro has SCART (RGB) video and B&W composite right out of the box. Thereβs no need for extra adapters, except when you need color composite β thatβs possibly the only scenario when youβll need anΒ adapter to build. The signals for this color composite adapter are taken from the RGB of the SCART pins and the Hsync/Vsync on the PCB. There is no special Dsub connector in the CB2 micro.
Read more: CB2 IS A BASIC RETRO MICRO MICROCOMPUTER