Liquid level alarm using 8051 microcontroller (AT89C51) by sagar_apache | Microcontroller › 8051 › Liquid level alarm using 8051 microcontroller (AT89C51) by sagar_apache This topic has 1 reply, 2 voices, and was last updated 11 years, 6 months ago by Dexter. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts July 12, 2011 at 5:36 am #1102 queryParticipant Liquid level alarm using 8051 microcontroller (AT89C51) is not working properly it is displaying only vacant message….can you tell me the possible mistakes i might have did so that i can figure it out ,,,, December 2, 2011 at 2:50 am #6899 DexterParticipant send the circuit diagran Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In