Hello my friend, at first i want to thank you for your work, i learn much from your videos , posts and etc. i have made soldering iron v3 , everything is fine , at firs i had lroblem with programming, when i atacched 5 main fomponents and tryed programming with FTDi , it was everything fine , but when i finished assambling , when i connected module it was turning off from conputer, but i guessed it was problem with buck comverter, i had to program it until i connected buck converter , i did so and everything worked fine, i programmed it , turnd it on , numbers on screen began encrasing but after a moment it sayes TIP ERRoR, Tip is getting hot but not very, and after Tip error it stops heating. What maybe wrong with me ? Please help. Thank you in advance.
P.s. i mensioned now that tip is starting heating even untill i push start button, maybe this will help you to hnderstand problem.