nice product missing a drawing but if you built up step by step you wil get ther for the program you have to be on here to find the link my voltage measurement is not working I did send it but no reaction only a bot
looks all okay. its a shame that it doesn't come with instructions on how to build it . and one of QR code doesn't work and it takes you to a Chinese ? pages . which make life harder so I not sure how I've got to build it . because I want to learn about to build a bigger version of it . let's see how i get on with this 1st