| CPC G06F 13/4282 (2013.01) [G16Y 20/00 (2020.01); G06F 2213/0042 (2013.01)] | 20 Claims |

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1. A modular Internet of Things (IoT) sensor system, comprising:
a network module, comprising a first female connector and a second female connector respectively disposed in two connection surfaces of the network module, wherein the first female connector and the second female connector are in shape and size conforming to a universal serial bus type-C specification, wherein a pin definition of the first female connector of the network module is complied with a first pin definition different from a pin definition of the universal serial bus type-C specification; and
a first expanded sensor module, comprising:
a male connector;
a female connector, wherein the male connector and the female connector are respectively disposed in two connection surfaces of the first expanded sensor module, wherein the male connector of the first expanded sensor module is configured to detachably connect to the first female connector of the network module, wherein the male connector and the female connector are in shape and size conforming to the universal serial bus type-C specification, and wherein pin definitions of the male connector and the female connector are complied with the first pin definition; and
a sensor, electrically connected between the male connector and the female connector, and wherein the sensor transmits sensing data through the male connector and the female connector.
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