humidity sensor interfacing with 8051 | Microcontroller › AVR › Interfacing humidity sensor sy-hs-220 to adc › humidity sensor interfacing with 8051 February 23, 2011 at 6:19 am #5593 dagakshayParticipant refer to the link it might help you out…. http://www.engineersgarage.com/microcontroller/8051projects/interface-gsm-module-8051-microcontroller-circuit-code