+ 7
There is no Arduino course on SoloLearn yet but if you want here are some resources (using the search bar):
https://www.sololearn.com/discuss/517058/?ref=app
https://www.sololearn.com/discuss/1007300/?ref=app
https://www.sololearn.com/discuss/1417954/?ref=app
https://www.sololearn.com/discuss/1104528/?ref=app
https://www.sololearn.com/discuss/293915/?ref=app
https://www.sololearn.com/discuss/206935/?ref=app
https://www.sololearn.com/discuss/232079/?ref=app
https://www.sololearn.com/discuss/310971/?ref=app
https://www.sololearn.com/discuss/823153/?ref=app