LISY 2.19 March 2016 First PCB with integrated Raspberry Zero. I tried to keep the PCB small to save costs. With PCB production in China it is not necessary anymore.
LISY 3.11 November 2016 Without Soundadapter and a WLAN USB Stick as the PIZero W with integrated Wireless was not existing at that time.
LISY80 3.20 with PHAT soundadapter on board ( picture shows a 'Justboom' Soundcard)
HW 3.3 The seperate EEprom vanished as I used the internal EEprom of the PICs.
HW 3.6 First version with integrated programmer for the three PICs.