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howto:sync_sensor [2022/02/07 02:26] – [How do I test that a Sync Sensor is working?] vintagetechhowto:sync_sensor [2022/02/07 02:27] – [How does a Sync Sensor work?] vintagetech
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 The Applesauce client software has a tool to help you with testing and the installation of sync sensors. Under the Drive menu, you can find the Sync Sensor Assistant. To use this, you will need to have your Applesauce plugged into your computer and your sync sensor connected to your Applesauce. The Beeper will emit a tone whenever it detects a magnet within sensor range, which is a few millimeters. This comes in very handy when installing your sensor as you can rotate the spindle back and forth to make sure that it is picking up the magnet consistently. After you have your drive closed back up after installation, you can run the Stability Validator that will run a longer test to make sure that it is working well. The Applesauce client software has a tool to help you with testing and the installation of sync sensors. Under the Drive menu, you can find the Sync Sensor Assistant. To use this, you will need to have your Applesauce plugged into your computer and your sync sensor connected to your Applesauce. The Beeper will emit a tone whenever it detects a magnet within sensor range, which is a few millimeters. This comes in very handy when installing your sensor as you can rotate the spindle back and forth to make sure that it is picking up the magnet consistently. After you have your drive closed back up after installation, you can run the Stability Validator that will run a longer test to make sure that it is working well.
  
-{{ gallery:sync_assistant.png?direct |Sync Sensor Assistant Check}}+{{ gallery:sync_assistant.png?direct |Sync Sensor Installation Assistant}}
  
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 The sync sensors all use the same circuit, but are just shaped differently to allow them to fit into specific drive enclosures. They work by attaching a magnet to the drive spindle and then using a hall effect sensor to send a signal whenever the sensor detects the magnet. The sync sensor also contains a 10KΩ resistor that is used as a pull-up on the signal output. The Applesauce hardware is triggered on the falling edge of the signal and the pulse width is recommended to be at least 500µs. The sync sensors all use the same circuit, but are just shaped differently to allow them to fit into specific drive enclosures. They work by attaching a magnet to the drive spindle and then using a hall effect sensor to send a signal whenever the sensor detects the magnet. The sync sensor also contains a 10KΩ resistor that is used as a pull-up on the signal output. The Applesauce hardware is triggered on the falling edge of the signal and the pulse width is recommended to be at least 500µs.
  
-{{ gallery:screen-shot-2021-10-21-at-8.40.32-am-768x291.png?direct |}}+{{ gallery:screen-shot-2021-10-21-at-8.40.32-am-768x291.png?direct |Sync Sensor Circuit Diagram}}
  
 If you are interested in fabricating your own sync sensors, here are there Gerber files for all of the sync sensors we make. The BOM for all of them is identical. If you are interested in fabricating your own sync sensors, here are there Gerber files for all of the sync sensors we make. The BOM for all of them is identical.