Yellow Rabbit

Yellow Rabbit Blog


DIY PS/2 keyboard adapter

DIY PS/2 keyboard adapter

On the one hand, the adapter accepts keystrokes from the standard PS / 2 keyboard, and on the other hand, manipulates the input lines of the 1801VP1-014 chip by pretending to be a matrix of keys. The number of AtMega8 outputs is increased using a shift register. The firmware is written in the Forth dialect (muforth). [more...]

Slackware on Orange Pi Zero

Slackware on Orange Pi Zero

Orange Pi Zero Orange Pi Zero is a small old single board computer from Shenzhen Xunlong Software CO. Limited. [more...]

From model to the real thing

From model to the real thing

The process of modeling and manufacturing parts from start to finish. Was used 6mm thick plastic, single-flute cutter 3.175mm. [more...]

Fixing the Pen of the Huion Graphic Tablet

Fixing the Pen of the Huion Graphic Tablet

When using a graphic tablet, you need to be very careful with the pen. I was convinced of this on my own sad experience (as usual :smile:). [more...]

Logical Level Converter

Logical Level Converter

There is such a chip Max 7219, which is a seven-segment indicator controller. It not only allows to control eight such indicators, but also allows cascading connection with the same controllers, which allows to arbitrarily increase the bit capacity. [more...]