SIM Switch

185

01:34:14

Dual SIM Function for GSM Modules, to allow for an MCU to Switch Between 2 SIM cards
Both Switches must be toggled when testing, simulates the MCU Port HI / LOW switching
The 3.3VDC simulates the MCU Port Voltage
Requires 2 x MCU Ports
Only 1 SIM Card must be active at a time, GSM Module will not switch on otherwise.
Use SN7002N MOSFET's based on low Vgs properties

published 10 years ago

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