O2 sensor based on ARM embedded microcontroller

• Main Authors: HUANG LIUXIN, WANG YONG, ZHU TAOTAO
• Format: Patent
• Language: Chinese; English
• Published: 26.07.2019
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING; TESTING

The utility model discloses an O2 sensor based on an ARM embedded microcontroller. The device comprises an ARM embedded microcontroller, an O2 sensor probe, a low dropout voltage regulator, a half-duplex transceiver, a power supply management chip for supplying power, a four-interface bonding pad and a waterproof ventilation shell, the O2 sensor probe and the half-duplex transceiver are both connected with the ARM embedded microcontroller; the O2 sensor probe is connected with the power supply management chip through the low dropout voltage regulator; meanwhile, the power supply management chip is connected with a first interface of the four-interface bonding pad, a second interface of the four-interface bonding pad is grounded, and the half-duplex transceiver is connected with a third interface and a fourth interface of the four-interface bonding pad through RS485 lines respectively; and the ARM embedded microcontroller is connected with the Internet of Things gateway through a four-interface bonding pad. Th