For education of boys and girls, 10 - 15? years, I need som very small working projects. It should end up with somthing usefullfor those childs.
I have one, but think it is to complicatet for the target group:
RJ45 cable tester:
4 signals out trough pair 1 and 2, returning trough a plug and bak to 4 blinking leds on the print.
A project sould only a few kind of instructiones, 10 - 16 in all.
Let the smal solutione ve a challenge :-)