Acoustic spectrum analyzer for HD44780 LCD. This is version 2 of this device, version 1 was popular and you asked for some effects and options, so here it is :)
Simple meter on a HD44780 and Attiny13. This project has born from a pure curiosity – what we can made on this small uC? We can, and a lot. In this case this tiny will measure voltage, current, and temperature, recalculate, and in a nice way show on a 16*1 lcd. Despite on unusual solutions and few defects, it still can be used as a power supply meter. PCB dimension – only 35mm x 16mm
Miniature version of LCD2USB device, a lcd driver connected to usb port. Because the original pcb was too complicated for home-make, i have projected new pcb – all parts is surface-mounted, pcb width is width of 16 pin connector which is fit exactly behind lcd. I used mini-usb connector, ATMega8 in TQFP package, and some of other SMT parts. As pcb is modified, it need modified firmware available for download below. Rest of description is available on original autor site.