Smart Walking Stick for Visually Impaired | Microcontroller › 8051 › Smart Walking Stick for Visually Impaired This topic has 0 replies, 1 voice, and was last updated 9 years, 7 months ago by Manoj. Viewing 1 post (of 1 total) Author Posts February 19, 2015 at 6:15 pm #3472 ManojParticipant Please help me out regarding the project Smart Walking Stick for Visually Impaired I need following information: 1. What is pit sensor used, how it works? 2. What is water sensor used, how it works? 3. What is the driver used for vibrator in the block diagram, is it an IC (if yes what is IC number)? 4. Is MAX232 is the level converter between Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In