Voice Recorder Accessories -Display Module Highlights Generic Brand Display Module Description: Need SPI port with three-wire control, no need real-time scanning Support all kinds of single chip and module It is available to achieve 8-digit and 7-digit segment LED display, and supports bar chart monitor or standalone 64pcs LEDs static to storage data This module comes with 8 digit common cathode 0.36 inch Nixie tube It is suitable for cascade multi-module This module is compatible with 5V/3.3V or other singlechips Connection explains: VCC-5V GND GND-DIN-P1.0 CS-P1.1 CLK-P1.2 Note: It is not allowed to connect VCC and GND in the wrong way, and you will avoid chip burnout. If you are using the single piece 51, port P0 must be connected to the pull-out resistor. Package includes: 1 x MAX7219 8 digit nixie tube display module