Customer:
I have a 20-year-old woodworking machine whose memory has been completely erased, including the program that controlled all its motors and read sensor data. The program was supposed to send signals to relays that would then activate those motors. I’m considering connecting all the relay inputs to a microcontroller and programming it to perform the same tasks as before. The relays operate at 24V DC. Is this feasible, and which of your microcontrollers would be best suited for this? I need to control 33 relays.
Original message (Croatian)
Pozdrav, [name removed] imam jedan stolarski stroj star 20ak godina i izbrisana mu je cijela memorija odnosno program koji kontrolira sve njegove motore i čita podatke sa senzora. Inače taj program je trebao slati signale u releje koji bi onda pokretali te motore. Na pamet mi je pala ideja da sve te ulaze na relejima spojim na microcontroller i njega programiram tako da radi iste zadatke kao što je radio prije. Releji rade na 24V DC. Zanima me je li nešto tako izvedivo i ako je koji od vaših microcontrollera bi mi najbolje poslužio za to. Broj releja je 33. Hvala unaprijed. LP
Originally submitted via email support on 16 July 2022. Migrated to the forum for community visibility.