i will to make a new project with arduino and GSM module quectel m66. my problem is i can't know how to switch between multiple sim card real time. my scenario is, connect all sim card as parallel together. sim gnd, rst, clk, io is shared between all sim card and i control and select target sim card with arduino and multiplexer. actually all sim card vcc connected to multiplexer HC4067. is this way worked good? or no, please tell me how to find a good way for solve this solution.
attached image is project similar with my project.