Replace _mapRes() method with some math formulas
Simplify setRes() and getRes()
Simplify getRes()
new docs
remove different baud rate info - this was an Espruino bug when lights were connected to SPI1
Update Interfacing.md

corrected typo in the Python code: command should end with \n, not just n.
Merge pull request #25 from kimbauters/master

Update Interfacing.md
Update Interfacing.md

Two more updates: 
 - added instructions on installing pySerial, as that module is needed but commonly not installed;
 - removed the ser.open(); upon object creation the port is immediately opened, so trying to open it will result in an error that the port is already open. This should be tested on other systems, but I think this behaviour is system independent.
update docs to reflect the fact that using Math.clip is now frowned upon
Merge branch 'master' of github.com:espruino/EspruinoDocs
Solar power tutorial
thumbnails for kit
Added more help for driver ICs
wiring up 293D
Merge pull request #26 from kimbauters/master

Update Interfacing.md
make this work out of the box with Espruino on linux
steppers
new tutorials
note about flashing
added file on making modules