Post by papa on Feb 28, 2019 13:43:40 GMT
Hall Effect Sensor: Doors, Windows, Mail Box, etc.
When influenced by a magnetic field, a Hall Effect Switch Sensor outputs binary data through one of its three pins: Near a sufficient magnetic field, a Hall Effect Switch outputs ON (one or true). Otherwise, it outputs OFF (zero or false). There is also a Hall Effect Sensor that outputs analog data proportional to the strength of the magnetic field. I will not discuss that type of Hall Effect Sensor.
Where a magnet is used to trigger a reed switch, a magnet can also trigger a Hall Effect Switch. A Hall Effect switch sensor can be used (with a magnet) to sense whether things like these are open or closed: windows, people doors, garage doors, & mail box doors.
A reed switch has only two pins, power & ground while a Hall Effect sensor has those two pins plus a data line. A Hall Effect sensor is smaller than a plastic-encased reed switch, yet a Hall Effect sensor seems fairly sturdy. A plastic-encased reed switch includes a way to mount it. For some installations, Hall Effect sensor may need such a way supplied. However, one might safely counter-sink & glue a hall sensor in a door or window frame & embed a matching magnet in the edge of the door or window opposite the sensor. In order to trigger the sensor, a magnet's pole must be oriented parallel to the sensor's face.
In the following posts, I discuss how we can use a Hall Effect switch in place of a reed switch or a tilt switch or ?? to detect whether something is opened or closed.
When influenced by a magnetic field, a Hall Effect Switch Sensor outputs binary data through one of its three pins: Near a sufficient magnetic field, a Hall Effect Switch outputs ON (one or true). Otherwise, it outputs OFF (zero or false). There is also a Hall Effect Sensor that outputs analog data proportional to the strength of the magnetic field. I will not discuss that type of Hall Effect Sensor.
Where a magnet is used to trigger a reed switch, a magnet can also trigger a Hall Effect Switch. A Hall Effect switch sensor can be used (with a magnet) to sense whether things like these are open or closed: windows, people doors, garage doors, & mail box doors.
A reed switch has only two pins, power & ground while a Hall Effect sensor has those two pins plus a data line. A Hall Effect sensor is smaller than a plastic-encased reed switch, yet a Hall Effect sensor seems fairly sturdy. A plastic-encased reed switch includes a way to mount it. For some installations, Hall Effect sensor may need such a way supplied. However, one might safely counter-sink & glue a hall sensor in a door or window frame & embed a matching magnet in the edge of the door or window opposite the sensor. In order to trigger the sensor, a magnet's pole must be oriented parallel to the sensor's face.
In the following posts, I discuss how we can use a Hall Effect switch in place of a reed switch or a tilt switch or ?? to detect whether something is opened or closed.
