① The "on start" command block runs only once to start the
program.
②Connect the IR receiver to P9
③Set the variable val to 0
④Set the variable val2 to 0
⑤In the "forever" instruction box, the program runs cyclically
⑥Set val to IR button
⑦ When the variable val ≠ 0 is established, execute the
program under then
⑧Set variable val2 to val
⑨When val2=70 is established, execute the program under
then
⑩The car goes forward
⑪When val2=68 is established, execute the program under
then
⑫Turn left
⑬When val2=67 is established, execute the program under
then
⑭Car turn right
⑮When val2=21 is established, execute the program under
then
⑯The car goes back
⑰When val2=64 is established, execute the program under
then
⑱The car stops
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