How to determine which Nixie Clock model the firmwae is writen for in your Atmega328 or Atmega2560


  1. Download and install driver for the USB-UART converter, which is used on your Board. (here is a link to the page with it: DRIVERS)
  2. Download and install Arduino IDE from official site:
  3. Lunch Arduino IDE and select COM port to which your Nixie Clock is connected:
  4. Open COM port Monitor and select transfer rate at 115200 baud:5. Close COM port monitor and open it again (this will make the Clock to restart).


In this example we used the Firmware for Nixie Clock Arduino Shield NCS314 hardware versio v.3.х.