It does not matter which of the two cables of the magnetic switch is connected to the base of the transistor.
Wireless magnetic door sensor raspberry pi.
Raspberry pi sends an email to your phone when door is opened or closed logs the event to a text file.
The wireless door sensor is a magnetic gap sensor that will send the rf 433 mhz signal to the receiver when someone open the door.
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Just be aware that the built in wireless card of the raspberry pi 3 only supports the 2 4ghz band so if your network is dual band you won t be able to monitor the 5 0ghz spectrum.
However these modules can not measure additional information such as humidity and or air pressure.
The ds18b20 and ds18s20 represents a very simple sensor.
Gikfun mc 38 wired door sensor magnetic switch for arduino ek1656.
The free end should be attached to the window door and the one with cable best to the fixed door window frame.
Hooking up the sensor.
Once the signal is detected the raspberry pi will send the odata http post request to the hana server.
Build a raspberry pi door window sensor with reed relais.
The raspberry pi with the receiver within the range listens for the incoming signal from the sensor.
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An advantage is that many different 1 wire components can be connected in series and read out by a single gpio.
If you have a first or second generation raspberry pi then you will need to procure a wireless dongle that is supported by the raspberry pi and install the.
With just a few components you can easily make a diy home alarm system for your doors and windows.
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Capture images from your raspberry pi camera module.
Entry sensor monitors your door window server cabinet or catflap.
Yoohey mc 38 surface mount wired nc door sensor alarm magnetic reed switch 5pcs.
Compatible with raspberry pi a b a b pi 2 pi 3 pi 4 and pi zero wh models.
Start up the raspberry pi and go to the desktop type.
These raspberry pi sensors are addressed via the so called 1 wire bus.