====== 2022-07-10 - lemur's bobik ======

a friend of mine sent me a description of a [[https://www.elektroda.pl/rtvforum/topic3904198.html|home-made electronic toy for a child]]. that in turn reminded me of a [[https://github.com/el-bart/lemurs_bobik|Lemur's bobik]] -- pandemic-times project for my son, aimed at learning basics of programming.

{{:blog:2022:07:10:inside.jpg?400|robot's interior}}

to control it, you have to insert a program, by providing a predefined set of actions, similar to programming in [[wp>Logo_(programming_language)|logo]]. available commands are:

  * forward
  * backward
  * turn left
  * turn right

5th button is "start", that begins program execution.

robot was built during 1st COVID-19 lockdown in PL, so i tried to use only parts that i had available (including unipolar stepper motors from an old printer :D). this ended up in a funny mixture of SMD and THT components. there is a TODO list for addressing some of the shortcomings of the current design. my son is now also 2 years older, so i guess it would be even more fun for him now. :)