==== Tanglebots Notes ====

  * ask for more info (family ages and backgrounds) so we can -
  * prearrange groups 
  * food was ~£6 per head (£110 total)
  * short (colour) printed tutorial was important so people can go at different speeds
  * need to rehearse construction of pi, explorer hat, screens to get the right order!
  * test all screen cables (one was defective)
  * touchscreens were fiddly, but good as they can disappear/incorporate into the mess (rather than monolithic black things)
  * croc clips were very important to avoid soldering
  * first aid kit needed
  * explorer hats good but needed periodic resets in some cases
  * the raspberry pi docs are riddled with minor errors (https://www.raspberrypi.org/documentation/usage/scratch/gpio/README.md)