5V USB-ARDUINO NIXIE 3-Tube Thermometer+Humidity

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Feature(For reference only):

1.Silicon based Temperature+Humidity sensor outside PCB via I2C(via 4pin socket on PCB, can ext out <20cm by urself if u want), high accurate, auto switch displaying the temperature and humidity info on NIXIE tube;The first IN-14 left DOT will be light up if digits over 99 or less than 0;

2.5V USB powered and fully assembled PCB with acrylic enclosure and pluggable female pins on PCB,users only need to plug NIXIE tubes on it by hand;

3.Module based structure via socket,HV module can be replaced by hand, easy to replace it;

4.RGB LED under the NIXIE tube,u can switch the LED color by clicking the switch on PCB,item supports a few pre defined pure colors and rainbow color loop function;

5.ARDUINO UNO (ATMega328) fully open source pure C source code;

6.New NIXIE driver circuit, nixies display in high brightness;