Today was a Bad Day at Black Rock Day
2 LEA ICT Advisers came out to visit my Thurs robot club - everything was prepared - bots worked fine (as they generally have done) at yesterdays club.
Planned on simple boys vs girls race to get their bot's to around a pillar - they laid out white insulation tape tracks - we powered up the bots - VNC'd into them fine - programmed a bit of code to show the special guests how you could make the bots move and turn - nothing happened - tested battery - fine - tested motors direct across battery - they turned - refused to do anything from Scratch.
Both of them
from separate computers
Spent 15 mins trying to diagnose - got nowhere
Gave up and powered up a stepper bot and at least that worked but by this time - roboteers given up and just playing on suite pcs.
So advisers said they understood that things don't work when you need them to but one robotoeers gone home, I plowed on and went to show them Scratch controlling Arduino Nano - that failed as well
Finally went to demonstrate the Scratcher Control 'droid app - guess what - I'll give you two guesses but you are only going to need one
Worst tech failure demo for 20 years
(That was showing our Chief Engineer how (not in this case) reliable X25 was for transferring data across WANs!!!!)
Anyone wanting to buy some second-hand PiBots????