gca-pi05-en
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— | gca-pi05-en [2019/04/18 14:26] (current) – created - external edit 127.0.0.1 | ||
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+ | ====== GCA-Pi05 G-Loco Controller ====== | ||
+ | [[: | ||
+ | [[: | ||
+ | * [[rocnet: | ||
+ | * [[: | ||
+ | * [[: | ||
+ | * [[: | ||
+ | * [[: | ||
+ | \\ | ||
+ | | Discontinued, | ||
+ | |||
+ | {{rocnet: | ||
+ | |||
+ | \\ | ||
+ | =====Description===== | ||
+ | The RocNetNode supports Mobile commands for controlling the GCA-Pi05.\\ | ||
+ | The GCA-Pi05 is designed for gauge **G** locomotives with enough room to hold a RasPi/Pi05 sandwich.\\ | ||
+ | The Raspberry Pi communicates by WiFi.\\ | ||
+ | Startup of Rasberry Pi is not like a normal DCC locdecoder, it takes approx 8-10 seconds.\\ | ||
+ | Therefore, also a small 6 Volt Accubattery should be mounted inside the loc.\\ | ||
+ | The power supply will also take care for charging the battery and switch it off if for a longer period no power is available from the track.\\ | ||
+ | |||
+ | \\ | ||
+ | |||
+ | =====Features===== | ||
+ | * RFID reader for reporting scanned tags between the tracks; Sensor by ID. | ||
+ | * 4A Motor PWM output: GPIO 22 and 7-8 for direction. | ||
+ | * 2 Smoke generator channels: 7-8. | ||
+ | * 6 light PWM channels direction dependent: 9-14. | ||
+ | * 6 Servo channels: 1-6. | ||
+ | * 2 general channels: 15-16. | ||
+ | * Sounds from SD-Card. | ||
+ | * Hall sensor for controlling the drive wheel speed. | ||
+ | |||
+ | \\ | ||
+ | |||
+ | =====Loco address==== | ||
+ | * [[: | ||
+ | * Bus -> 0 | ||
+ | * Address -> RocNetID | ||
+ | \\ | ||
+ | =====Motor setup==== | ||
+ | {{ http:// | ||
+ | * [[: | ||
+ | The motor PWM frequency is about 100Hz.\\ | ||
+ | The **maximal duty cycle** can be set as percentage in the **steps** field; 100% is maximal.\\ | ||
+ | **Acceleration** can be set in the **mass** field: 1=10ms, 10=100ms, ...\\ | ||
+ | The number of internal speed steps is fixed at 100 and is spread over the maximal duty cycle set in the steps field; For max. duty cycle of 50% the number of decoder steps must be set to 50.\\ | ||
+ | |||
+ | \\ | ||
+ | |||
+ | =====Sensor setup===== | ||
+ | The reported RFID must mach with a __**[[: | ||
+ | This sensor should have its address set to zero.\\ | ||
+ | The ID must be set in this notation: __**[[: | ||
+ | The Rocrail traces can be used to copy this ID or the __**[[: | ||
+ | \\ | ||
+ | |||
+ | =====WiFi===== | ||
+ | {{ : | ||
+ | The RasPi needs a good WiFi USB-Stick to get a stable connection.\\ | ||
+ | In the test environment | ||
+ | The EdiMax Nano can not be used.\\ | ||
+ | |||
+ | |||
+ | \\ | ||
+ | \\ | ||
+ | \\ | ||
+ | \\ | ||
+ | |||
+ | =====Hardware===== | ||
+ | |{{: | ||
+ | |{{: | ||
+ | |{{: | ||
+ | |{{: | ||
+ | |[[http:// | ||
+ | ^ N.B. Only complete ordered kits will be supported! ^ | ||
+ | \\ | ||
+ | |||
+ | =====Locomotive===== | ||
+ | For this example a **[[http:// | ||
+ | {{http:// | ||
+ | * Max. 65 MPH (104 KM/H) | ||
+ | * Drive wheel diameter is 28mm; One rotation is 88mm. | ||
+ | |||
+ | ====RPM Control==== | ||
+ | ===Magnets=== | ||
+ | In the gear-wheel 3 magnets of 6mm ø3mm must be mounted like this:\\ | ||
+ | {{: | ||
+ | ===Hall Sensor=== | ||
+ | The Hall sensor can be tie-wrapped on a small piece of PCB which fits beside the gear-wheel in the gear-box of one truck.\\ | ||
+ | After the sensor have been bent in the optimal position it can be fixated with some hot glue.\\ | ||
+ | The Hall sensor will generate three times a pulse for every wheel rotation.\\ | ||
+ | | {{: | ||
+ | | Position for the PCB board. | ||
+ | | {{: | ||
+ | | another way to mount the hallsensor | ||
+ | |||
+ | \\ | ||
+ | ^ DC Voltage ^ Hall Freq. ^ Rotations ^ Scale speed ^ | ||
+ | | 2V | 3Hz | 1 | 10 kmh | | ||
+ | | 6V | 10Hz | 3.33 | 35 kmh | | ||
+ | | 12V | 22Hz | 7.33 | 67 kmh | | ||
+ | | 18V | 33Hz | 10 | 100 kmh | | ||
+ | |||
+ | \\ | ||
+ | |||
+ | ====RFID Reader==== | ||
+ | The RFID reader can be mounted in the Cylinders (19). Or alternatively in the tank. (20)\\ | ||
+ | | {{: | ||
+ | |||
+ | | ||
+ | The **ID-12LA** in combination with glass responders is fast enough for this gauge.\\ | ||
+ | |||
+ | |||
+ | \\ | ||
+ | ===== Motor distortion ===== | ||
+ | The motors usually are spreading a lot of distortion, which is suppressed mostly on the controller board or decoder.\\ | ||
+ | But the rather long lines to the motor still spread a lot of this distortion, | ||
+ | and in that way making a good functioning of the RFID sensor rather impossible.\\ | ||
+ | One good solution is using VDR resistor (plain 30V type) , mounted directly on the motor connections.\\ | ||
+ | This actually cured my RFID problem.\\ | ||
+ | Picture below shows one of the VDRs mounted.\\ | ||
+ | {{: | ||
+ | |||
+ | =====Videos===== | ||
+ | * [[https:// |
gca-pi05-en.txt · Last modified: 2019/04/18 14:26 by 127.0.0.1