Clock with vacuum florecent display, wifi based and NTP sync.Based on ESP8266 and MAXIM6921.And three home designed PCB's.Powered by a 5v usb Charger, the first board creates 3 voltages:- 3v3 för the ESP- 5v for ATTiny85- 20v for the VFD through the driver.The second board is the main board for ... view more

• ESP8266
• VFD

Working on VFD clock using standalone atmega328, SN74HC138N (3 to 8 line demultiplexer), CD4026BE (7 segment display driver) and a bunch of transistors. The idea is to switch different grids using demultiplexers, each of them is 3 to 8 line demux and I will wire them in series so they will be 4 t... view more

• Atmega328
• CD4026BE
• BC557C
• VFD
• NE555