Smart device kit and smart device protective sleeve thereof

A protection case for a smart device, comprising

• a rear case;
• and
• a cover plate connected to a side edge of the rear case, wherein a membrane switch is disposed in the cover plate, an outer surface of the cover plate includes a key window disposed corresponding to a key portion in a panel layer of the membrane switch, an extension wire of a lower circuit layer of the membrane switch is extended out from an inside of the cover plate, a spring pogo pin connector is disposed on the extension wire of the lower circuit layer of the membrane switch, a slot is formed in the smart device and arranged corresponding to the spring pogo pin connector for insertion of a pogo pin of the spring pogo pin connector, a pogo pin base connected to a GPIO (general purpose input/output) pin of a processor of the smart device is disposed in the slot inside a body of the smart device, and a contact point of the pogo pin base is exposed in a rear end of the slot.

A smart device assembly, comprising:

• a smart device;
• and
• a protection case for the smart device, wherein the protection case for the smart device includes a rear case and a cover plate connected to a side edge of the rear case, a membrane switch is disposed in the cover plate, an outer surface of the cover plate includes a key window disposed corresponding to a key portion in a panel layer of the membrane switch, an extension wire of a lower circuit layer of the membrane switch is extended out from an inside of the cover plate, a spring pogo pin connector is disposed on the extension wire of the lower circuit layer of the membrane switch, a slot is formed in the smart device and arranged corresponding to the spring pogo pin connector for insertion of a pogo pin of the spring pogo pin connector, a pogo pin base connected to a GIPO pin of a processor of the smart device is disposed in the slot inside a body of the smart device, a contact point of the pogo pin base is exposed in a rear end of the slot, and the rear case fits and is connected to a rear surface of the smart device.