Afternoon - just adding to this thread for anyone interested - recently we have been using cheap 5v voltmeters for a wind display via WF which i thought would be worth an update - below is a render, I’ll post a photo of the actual device shortly…
While I’m here, a tip of the hat to @jhrucker and the wall gauge - really nice - we are working on open source gauges at UCL mainly using servos, led’s and meters - your solution is really nice so give us a shout if we can help…
An instructable and the 3d files for the volt meter guage is incoming in the next week or so btw…