Hedgehog bot

Hedgehog bot is a small little MDF robot powered by the Wemos D2

There's a whole website dedicated to it: http://www.hedgehogbot.co.uk/

Random useful information

Rubber bands 50mm x 3mm work well for adding grip to the wheels without falling off
OS X CH340 support (the chip for USB to UART necessary to communicate with the esp8266) is abysmal (see http://kig.re/2014/12/31/how-to-use-arduino-nano-mini-pro-with-CH340G-on-mac-osx-yosemite.html for details on how to get it to work). Frankly not worth the effort, just tell people to bring Linux or Windows laptops.

Bodies are cut out by the workshop in Queens
We have a set of memory sticks (purple, green, red, black all the same style) with the libraries, arduino software and drivers to use at workshops
@Bristol have to add a list of websites to their filtering rules to allow participants to download the arduino, the esp8266 package for Arduino, the libraries from google drive and access hedgehogbot.co.uk.

The website says not to plug in the battery when programming, however this is wrong, the battery DOES need to be plugged in
@Bristol wifi still wouldn't allow us to download the board package, we had to manually copy AppData/Local/Arduino15 from a setup laptop to peoples computers
People still hook up the drivers the wrong way round, we need to make this information really prominent, and repeat it each time we show them how to hook the driver up.
The driver board wiring diagrams are confusing
The driver board fritzing diagram isn't quite like reality, adapt it to show the jumper on the side 4 pins
The Arduino ESP8266 BSP lives in %USERPROFILE%/AppData/Local/Arduino15 on Windows, on Linux, there's $ARDUINO_SKETCHBOOK_DIR/hardware and $HOME/.arduino15
Dead 9V batteries, buy a decent brand
Add the CH340 drivers to the memory sticks (some Windows PCs needed these)
No one came with their laptops set up despite being asked to set them up. Perhaps the sign up sheet didn't have the information? Or maybe people didn't read it.
Uni laptops were wiped after our Wednesday setup (turns out this happens each time the laptops are sent out for a workshop for data protection reasons).