Arduino 6 Scanning Digital Voltmeters version 2 with manual select buttons

The first version of this 6 way scanning Digital Volt Meter has been modestly successful, so I thought I would develop it a little bit further. I’ve added a simple manual method of push-button pair readout select. Independent of the auto scanning, you can now choose which pair to immediately view. I hope this development will make this device more useful. And, if you’ve developed this scanning DVM further yourself, I would really value seeing your work? *Original version 1 is probably best seen first: https://youtu.be/p6YezOYxoJE Both Arduino sketches are linked below, and if you like my work – please consider Liking, Sharing, and Subscribing thank you. The microphone used in this video is of my own design: https://youtu.be/01GiEWnfw8s **Please help me purchase more components for more projects/repairs. To make a donation: https://paypal.me/ThankyoufromBeamer?locale.x=en_GB #Beamer #Arduino #Voltmeter #Design

Links: This Arduino Sketch(2): https://u.pcloud.link/publink/show?code=XZoPruXZ2UNEuGSenSj49qV8Sh6IaYWnWT5y Original Arduino Sketch(1): https://u.pcloud.link/publink/show?code=XZIUEqkZuS8BxWLriRBzejx7qQHsnmhfCt8V About Bed-Of-Nails test rig: https://en.wikipedia.org/wiki/In-circuit_test#Bed_of_nails_tester TM1638 datasheet: https://www.alldatasheet.com/datasheet-pdf/pdf/1132372/TITAN/TM1638.html Interested in buying a board: In a well-known auction site's search engine place "tm1638 board" for many results. ... https://www.youtube.com/watch?v=zUFHgD0cl6Q