hcsr501
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| hcsr501 [2016/05/24 15:35] – created GoHoHa | hcsr501 [2016/05/24 15:40] (current) – [Wiring] GoHoHa | ||
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| ====== Movement detection by PIR sensor HC-SR501====== | ====== Movement detection by PIR sensor HC-SR501====== | ||
| + | ===== General ===== | ||
| There are fairly cheap PIR sensors available under the name **HC-SR501**. | There are fairly cheap PIR sensors available under the name **HC-SR501**. | ||
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| Measured at a sample it uses 35 µA if idle. If movement is detected the OUT pin goes from 0.0 V to 3.3 V and uses than 190 µA. | Measured at a sample it uses 35 µA if idle. If movement is detected the OUT pin goes from 0.0 V to 3.3 V and uses than 190 µA. | ||
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| + | ===== Wiring ===== | ||
| The PCB has a voltage regulator, a HT7133-1, which is used to make a stable 3.3 V from the VCC (4.5 V to 20 V). So we drive the combination of Env-Senso Board and HC-SR501 by 4 AA batteries and solder additional pins to the PCB as power source for the EnvSensor. | The PCB has a voltage regulator, a HT7133-1, which is used to make a stable 3.3 V from the VCC (4.5 V to 20 V). So we drive the combination of Env-Senso Board and HC-SR501 by 4 AA batteries and solder additional pins to the PCB as power source for the EnvSensor. | ||
| {{ : | {{ : | ||
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| + | //Add changes to monitor battery level again!// | ||
| + | ===== Housing Integration ===== | ||
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| + | //tdb// | ||
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| + | ===== Usage Example with OpenHAB ===== | ||
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| + | //tdb// | ||
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hcsr501.1464096921.txt.gz · Last modified: 2016/05/24 15:35 by GoHoHa