• How to interface Reed Switch sensor with 8051 Microcontroller?
    Hi I want to build a system contain sensor ,Microcontroller and GSM module. I'll use SIM900 GSM module. The main idea of this project if Reed switch sensor connected I want the GSM module send an...
  • How to make a sensor opening waterproof
    Hello, Not really a Kiel related question, but I was hoping somebody might have an idea. I have an IR sensor connected to a microcontroller, which is part of a system that should withstand harsh...
  • Voltage sensor for an 8051
    I am working on a home project in which I need a cheap voltage sensor. I need an 8051 to monitor the voltage that I am getting from the wall. All I want to do is monitor whether the voltage is on or off...
  • fingerprint sensor error for 8051
    i am trying to develop my own project based on 8051. i am using Fingerprint sensor(R305) , AT89S52 and relay for basic relay on/off. given code is not completed i mean i have not included the relay function...
  • motion sensors
    i want to do room security system,in that i want detect the person or anything entered in the room not only from door from any side of the room,so plz suggest me which sensors i have to use for this...