Design of intelligent sensor system based on MC9S08SH4 and AD7705

An intelligent sensor system comprising Freescale MC9S08SH4 and AD7705 is introduced. The hardware circuits and software frame are given. Functions such as software zero adjustment, floating data processing, multi-nodes measurement and RS-485 intercommunication are added to common sensors. Project practice shows that this intelligent sensor system has many advantages such as high accuracy, compact structure, high reliability and strong anti-jamming ability.