Hey guys, sorry to be a little demanding since I am new. I am quite prepared to but the time in and do more research and learning before asking for any more guidance I would like to know the feasibility of the project. I have stumbled across arduino before and thought It would be a pretty cool to get into in the future but hopefully it could be made part of my current project.What I would like to do is using a standard 3G usb dongle, several 3G sim cards, several sim card holder trays, and a audrino kit with a 16 channel relay board I would like to make a automated sim card switcher.I was thinking maybe unpower the usb, change the sim card, repower. Also would I be able to get away with 1 relay per sim?Im sorry if this is a really silly question, I would be willing to put the time and effort in but don't wanna waste time if it is obvious to you guys that its a non starter.Basically would rather invest the money into audrino to have fun with future projects, than the alternative of buying 16 or so dongles which are ~£10 each anyway. Thanks alot for your input.
Why not have all the SIM cards powered and just change the i/o line to the one you want to use? You can then use a 74HCT4067 to select which of the 16 SIMs you want to use. A 74HCT4076 will need 4 address pins and one enable pin. Connect your i/o directly to the i/o pin of the 74HCT4076.
Please enter a valid email to subscribe
We need to confirm your email address.
To complete the subscription, please click the link in the
email we just sent you.
Thank you for subscribing!
via Egeo 16