Wall-mounted air quality monitoring system based on PIC chip

The utility model provides a wall-mounted air quality monitoring system based on a PIC chip, which comprises a PIC, a shell, a bottom air inlet, a particle sensor, a pressure sensor, a temperature sensor, a humidity sensor, a gas sensitive sensor, a guide plate, an air outlet, an LCD, a mainboard, a side air inlet, a voltage stabilizing chip and a driving chip, a gas-sensitive sensor, a humidity sensor, a temperature sensor and a pressure sensor are embedded in the four sleeve seats respectively, a particle sensor is arranged on a bracket at the bottom of a sensing area, two arc-shaped guide plates with different sizes are arranged on the side wall of a shell of the sensing area, a PIC micro-control chip, a voltage stabilizing chip and an LCD driving chip are arranged on a main board, and the pressure stabilizing chip is connected with the pressure sensor. Air in the sensing area is taken out from the air outlet, external air enters the sensing area from the bottom air inlet, the air circulation effect in the