add visualisation of sensor and variable in Thymio blockly

[mbonani]

could be very similar if we implement that:
aseba-community/aseba#397

[stephanemagnenat]

This and aseba-community/aseba#397 would be much easier if all sensors and actuators were accessible by variables (in contrast to native functions) in the Thymio VM. One should keep this in mind for the next robot.

[mbonani]

Ok, but I don't think that the most important is to visualise the state of the leds. And for me actuators like sound have no sense with variables. And in a sense there are so many led in Thymio that having them grouped in functions simplify code and save memory.

[stephanemagnenat]

Ok, but I don't think that the most important is to visualise the state of the leds.

It would be great to have a live preview of the robot's color in the color blocks.

And in a sense there are so many led in Thymio that having them grouped in functions simplify code and save memory.

I firmly believe that the improvement in discoverability would offset the additional memory cost. And we talk about 60-70 bytes. Moreover, it would make the access to sensors and actuators more consistent which would allow further programming language possibilities.