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1-Wire with Leds and Beeps oscar

My first 1-Wire project

Recent activity:

  • oscar pushed to5 years ago
  • oscar schematic processed5 years ago
  • oscar board processed5 years ago
  • oscar board received5 years ago
  • oscar schematic received5 years ago
  • oscar photo received5 years ago

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I needed a simple physical system to interact with a PC. In particular, a system as simple as possible (you can use with a simple gesture and no specific knowledge), effective (it should just work :)), and sure enough in order to activate the security cameras.

Along with the software part, this circuit is connected to a usb stick OneWire "DS9490R" from which it receives commands, enabling a two-color LED and a buzzer through the one-wire switch, and checking the door state. Finally present a pair of contacts "open" for the sensor iButton (the simple gesture).

Looking the board: I'm using a single dual color led, such representation is its internal schema.

"S1" is a Reed on the door, to sense if it is open. Such probe comes with 4 wires: 2 are the reed, the others are anti-tampering normal closed wire.

"J2" is a buzzer

"IC1" "IC2" "IC3" are Dallas DS2413 "1-Wire Dual Channel Addressable Switch"

"J1" are directly and straight connected to Dallas DS9490R 1-Wire USB adapter

In photo you cannot see led, iButton probe and door probe, because them are connected with the pins you can see on the right of the board...



Bill of Materials

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This project is © Giulio Carabetta, and is published under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported licence.