Patent ID: 8680980

Claim:
A blank tire pressure monitoring device, comprising: a housing having located on one end thereof an air valve and located on an opposite end thereof five connection terminals; a circuit board mounted inside said housing; a pressure sensor installed in said circuit board; a temperature sensor installed in said circuit board; an acceleration sensor installed in said circuit board; an analog-digital converter installed in said circuit board and electrically connected with said pressure sensor, said temperature sensor and said acceleration sensor; a general purpose I/O terminal unit electrically connected with said connection terminals of said housing; an embedded microcontroller module electrically connected with said general purpose I/O terminal unit and said analog-digital converter, said embedded microcontroller module comprising therein a flash memory, a microcontroller core and a special-function register controller; a LF (low-frequency) receiver electrically connected to said embedded microcontroller module; and a transmitter electrically connected to said embedded microcontroller module; wherein said general purpose I/O terminal unit is electrically connected with said five connection terminals of said housing, and wherein a first connection terminal of the five connection terminals is a power management terminal, a second connection terminal of the five connection terminals is a ground terminal, a third connection terminal of the five connection terminals is a data program clock terminal, a fourth connection terminal of the five connection terminals is a program data terminal, and a fifth connection terminal of the five connection terminals is a detection terminal.