BitPat is invention by Kadi Pajupuu. We built the prototype with help of our hackathon team at Tehnohack 2017 event. BitPat is an add-on for hand loom that allows to lift warp threads individually. Pattern created in computer is transferred by solenoids to the loom mecchanism. After the hackathon I made Eagle CAD drawing of needed printed circuit boards. A BitPat device needs one “brain” consisting of Arduino microcontroller, screen and SD card reader. Because the number of solenoids can vary from device to device I made driver module for 8 solenoids, several of which can be added.