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--- user:zimmer62:autodvdloaderrobot:start [2013/09/21 15:47]
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+++ user:zimmer62:autodvdloaderrobot:start [2013/09/30 13:58]
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+----
 I documented what I could figure out from each connecting wire:
-  * Bad Disk Full (Orange, Yellow, Green, Blue) QRB1114
+  * Bad Disk Full (Orange, Yellow, Green, Blue) [[https://www.sparkfun.com/datasheets/Sensors/QRB1114.pdf|QRB1114]]
-  * Bin Full (Red, Orange, Yellow, Green) QRB1114
+  * Bin Full (Red, Orange, Yellow, Green) [[https://www.sparkfun.com/datasheets/Sensors/QRB1114.pdf|QRB1114]]
-  * Drive Door (Blue, Black, Purple, Yellow) QRB1114
+  * Drive Door (Blue, Black, Purple, Yellow) [[https://www.sparkfun.com/datasheets/Sensors/QRB1114.pdf|QRB1114]]
-  * Home Sensor (Red, Orange, Yellow) Sharp? (Yellow = E)
+  * Home Sensor (Red, Orange, Yellow) [[http://www.sharpsma.com/webfm_send/637|Sharp GP1A75E3J00F]] (Yellow = E)
-  * Disk Present (Red, Black, Blue) Sharp? (Blue = E)
+  * Disk Present (Red, Black, Blue) [[http://www.sharpsma.com/webfm_send/637|Sharp GP1A75E3J00F]] (Blue = E)
-  * Safety Int (Black, Read, Green) Sharp? (Green = E)
+  * Safety Int (Black, Read, Green) [[http://www.sharpsma.com/webfm_send/637|Sharp GP1A75E3J00F]] (Green = E)
   * JP13 Greyish White Wires go to the Disc Release Solenoid.
-  * Stepper Motor FL42STH47-1206AC
+  * Stepper Motor [[http://jnker.com/equipment/step_pdf/Seriya-GD42STH_1.8.pdf|FL42STH47-1206AC]] (1.8 degrees 1.2A)
-     * 1.8 degrees 1.2A
+     * Rated Voltage = 4V
+     * Current / Phase = 1.2A
+     * Resistance / Phase 3.3Ω
+     * Inductance / Phase 2.8mH
+     * Holding Torque = 3.17Kg-cm
+     * Rotor Inertia = 68g-cm^2
+     * Detent Torque = 200g-cm
   * Power Supply 12V @ 2.5A
+{{:user:zimmer62:autodvdloaderrobot:motor-windings.jpg?direct&200|}}
 This should be enough information to get going.
 I don't need the safety interrupt, so that leaves me with 5 sensors, 1 stepper and 1 solenoid that I need to interface with.
+----
+{{:user:zimmer62:autodvdloaderrobot:img_6756.jpg?direct&800| }}
+----
+That still left me with trying to identify that Sharp optical sensor since there are 2 of them I will need.
+I can see that the blue wire here is the Emitter, I'd really like to find the specs on this to make sure I drive it correctly.
+My search let me [[http://memakingthings.blogspot.com/2012/12/optical-interrupters.html|here]], not identical, but very close.  The 361 chip on my board is a current limiting resistor.
+A little experimenting with the lid sensor that I'm not going to need should help me figure out how to interface with this.
+Ohhh I found it [[http://www.digikey.com/product-detail/en/GP1A75E3J00F/425-2565-ND/857214|@ DigiKey 425-2565-ND]]
+[[http://www.sharpsma.com/webfm_send/637|Sharp GP1A75E3J00F]] I'm still not sure from this how to identify the other two leads.
+I had a heck of a time getting the .net gadgeteer board and the L6470 stepper controller to talk to any stepper motor.
+I was finally able to get this turning a stepper motor over the weekend.  It seems it's very sensitive to it's register settings.
+I had to use some software and a stepper motor datasheet to get some values to feed into their software.
+According to this:
+https://www.ghielectronics.com/community/forum/topic?id=8081&page=2
+Those values only get you close and you need to use an o-scope to tune it further.
+TODO:
+  * Hookup and test stepper motor to L6470 module
+  * Interface both types of optical sensors to gadgeteer board
+  * Write some rough code to exercise the machine using the optical sensors to prevent damage
+    * A loop that grabs CD's from source stack, drops them every other into the bins until bins are full.
+  * Write code to interface machine to PC to take simple commands and report back
+  * Write code on PC side to control machine and rip discs