Arduino 8 Scanning Digital Voltmeters version 3

This video represents another step forward in the Arduino sketch department applied to the LED&KEYS board. I've extended this project from 6 to 8 scanning inputs. Also included are a fourth manual switch select and a basic ability to calibrate against a known voltage source. *2nd version 2: https://youtu.be/zUFHgD0cl6Q *1st version 1: https://youtu.be/p6YezOYxoJE All 3 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 Contact me: beamerelectronics@gmail.com #Beamer #Arduino #Voltmeter #Design

Links:

• 3rd Arduino Sketch(this video): https://u.pcloud.link/publink/show?code=XZO7VGXZmr4qjdzWXMh1aPoVQrgiA5b4S9PX
• 2nd Arduino Sketch(2nd video): https://u.pcloud.link/publink/show?code=XZoPruXZ2UNEuGSenSj49qV8Sh6IaYWnWT5y
• 1st Arduino Sketch(1st video): 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 enter "tm1638 board" for many results. ... https://www.youtube.com/watch?v=wkVzLbKoZms