Although designed for an onboard microcontroller Jet is easily controlled with a two channel Radio Control transmitter and receiver.

While laser cutting may be fine for architectural models it leaves precision to be desired when making 1.5 or 3mm holes So there was a lot of slop in the bearings. Perhaps with experimentation the fit would be better.

We fitted an Arduino and shield and took some photos but then the FabLab moved and later shut and the nameless person went off on another project so the Jets sat on the shelf for a while.

I was ill from the start of 2017 and couldn't walk and as something to do got down the Jets and fitted the Arduinos on top with the batteries on the feet which left the front free, I saw some 4-way IR obstacle sensors on the web which I thought would just fit on the front and ordered some and then put the Jets back on the shelf.

Jet Laser with sensors - 2021
It wasn't until the start of 2020 that I felt well again and during Covid-19 lockdown I modified the Bambino Arduino software to suit Jet, and then in March 2021 finally got around to fitting the 4-way IR obstacle sensors and also fitted an IR line sensor to each foot to detect drop-offs or even black lines.

Software
The Jet Arduino software is based on the Bambino software which at the time consisted of a suite of 48 (now 49) programs sarting with setting the servos to a mid position, then flashing the LEDS (Jet doesn't have any), slowly building up step by step. So the Jet programs start at JA48_Do.

JA50_IRsense
JA50_IRsense.zip

Introducing
Jet now fitted with 4way IR obstacle sensors, one on each foot and two on the body
plus an IR line/drop-off sensor on each foot.
    'bwf' - set stepping direction forwards  in L and R, used in Reactions 
    'bwb' - set stepping direction backwards in L and R, used in Reactions

Introducing
  m - start of a mind
  } - end of a Mind
      m will give an ability for the robot to randomly change its mind
      depending on a probability level 1 - 9 where e.g. 7 will give 70% certainty
      of the commands in the mind being executed and 30% probability of them being skippped
      and execution continuing after the }.
      use - m4FFFVRRR}BBB.
      if a generated random number (1 - 9) is less than 4 then FFFVRRR will be skipped

  Help was getting long so it has been split into three parts - printHelpActs, printHelpBehaviour, printHelpSystem

  added constants rollbyScale, pacebyScale, turnbyScale used in BA49_Mind - bp,br,bt,printbehaviour, printbehaviours, Help39,varsCons 
  previously was 2 embeded (Jet needs 4)

Introducing
  ( - start of a Do, a jump to an Act will on . continue in the Do
      will show its location in EEPROM when played.
      If a jump is made to an Act which contains another Do then that Do 
      will not be implemented.
  ) - end of a Do
      will show its location in EEPROM when played  
  Q or [Esc] to Quit all, needed to quit from Do    

  b0 - reload current behaviour to RAM BeHaves