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⇤ ← Revision 1 vom 15.04.2008 00:35
Größe: 4067
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Größe: 4036
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| Gelöschter Text ist auf diese Art markiert. | Hinzugefügter Text ist auf diese Art markiert. |
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| siehe auch: (evtl. Links zu anderen verwandten Seiten einfügen...) [[TableOfContents]] | Also see: ["en/TowerPro25aRegler"] [[BR]] [[TableOfContents]] [[BR]] |
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| [[BR]] To convert a TowerPro 50A ESC to allow it to be controled over the I2C (TWI) interface by the flight controler you have to cut two connections on the PCB, to separate a resistor network from the SDA pin, and reconnect the network of three resistors to a different processor pin. In addition you can cut a third connection to free up the orange PWM wire for the servo lead so that you can use the existing servo lead as I2C/TWI cable with an additional GND wire. [[BR]] == Step by step conversion in pictures == [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11223,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1828_Formaat+wijzigen.JPG.html)]] [[BR]] One side of a new TowerPro 50A ESC. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11225,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1829_Formaat+wijzigen.JPG.html)]] [[BR]] Other side of a new TowerPro 50A ESC. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11227,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1831_Formaat+wijzigen.JPG.html)]] [[BR]] Fully unpacked new TowerPro 50A ESC. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11229,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1833_Formaat+wijzigen.JPG.html)]] [[BR]] Fully unpacking is not a good idea as the heatsink is held in place with cream and will start sliding, so you will have to tape it in place temporarily. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11231,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1837cut.jpg.html)]] [[BR]] This is a simpler way of keeping the heatsink in place while converting the ESC. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11235,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1840_Formaat+wijzigen.JPG.html)]] [[BR]] First part of the conversion completed with the resistor network reconnected to a different processor pin [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11237,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1842_Formaat+wijzigen.JPG.html)]] [[BR]] SDA and SCL pins connected to the red and orange servo leads after cutting the old connection to the orange lead. As far as I can tell at the moment the red servo wire is not connected to anything (these ESCs do not have a BEC). [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11239,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1844_Formaat+wijzigen.JPG.html)]] [[BR]] Programming adapter soldered to the MISO, MOSI, SCK, RST, and GND, and temporary connectors for battery and motor in place, ready for reprogramming and testing. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11241,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1846_Formaat+wijzigen.JPG.html)]] [[BR]] Close up of the temporary programming connections. I-ve found quickly soldering the wires to the pins or resistors or pads, is as quick as using a programming adapter made from Fimo clay as those tends to be a less then 100% perfect fit. [[BR]] == Final steps in the conversion == [[BR]] Next step is to reprogram the processor, test the ESC with a flight controler and an old motor to ensure the reprogramming went well and the ESC is correctly translating I2C/TWI throttle settings into motor RPMs, remove the temporary programmer wiring, epoxy all other new wiring in place to avoid breaks or shorting out of any wiring, and re-heat-shrink the ESC. |
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| To convert a TowerPro 50A ESC to allow it to be controled over the I2C (TWI) interface by the flight controler you have to cut two connections on the PCB, to separate a resistor network from the SDA pin, and reconnect the network of three resistors to a different processor pin. In addition you can cut a third connection to free up the orange PWM wire for the servo lead so that you can use the existing servo lead as I2C/TWI cable with an additional GND wire. [[BR]] == Step by step conversion in pictures == [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11223,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1828_Formaat+wijzigen.JPG.html)]] [[BR]] One side of a new TowerPro 50A ESC. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11225,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1829_Formaat+wijzigen.JPG.html)]] [[BR]] Other side of a new TowerPro 50A ESC. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11227,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1831_Formaat+wijzigen.JPG.html)]] [[BR]] Fully unpacked new TowerPro 50A ESC. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11229,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1833_Formaat+wijzigen.JPG.html)]] [[BR]] Fully unpacking is not a good idea as the heatsink is held in place with cream and will start sliding, so you will have to tape it in place temporarily. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11231,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1837cut.jpg.html)]] [[BR]] This is a simpler way of keeping the heatsink in place while converting the ESC. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11235,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1840_Formaat+wijzigen.JPG.html)]] [[BR]] First part of the conversion completed with the resistor network reconnected to a different processor pin [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11237,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1842_Formaat+wijzigen.JPG.html)]] [[BR]] SDA and SCL pins connected to the red and orange servo leads after cutting the old connection to the orange lead. As far as I can tell at the moment the red servo wire is not connected to anything (these ESCs do not have a BEC). [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11239,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1844_Formaat+wijzigen.JPG.html)]] [[BR]] Programming adapter soldered to the MISO, MOSI, SCK, RST, and GND, and temporary connectors for battery and motor in place, ready for reprogramming and testing. [[BR]] [[ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11241,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1846_Formaat+wijzigen.JPG.html)]] [[BR]] Close up of the temporary programming connections. I-ve found quickly soldering the wires to the pins or resistors or pads, is as quick as using a programming adapter made from Fimo clay as those tends to be a less then 100% perfect fit. [[BR]] == Final steps in the conversion == [[BR]] Next step is to reprogram the processor, test the ESC with a flight controler and an old motor to ensure the reprogramming went well and the ESC is correctly translating I2C/TWI throttle settings into motor RPMs, remove the temporary programmer wiring, epoxy all other new wiring in place to avoid breaks or shorting out of any wiring, and re-heat-shrink the ESC. |
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| KategorieEnglish | KategorieEnglish |
Also see: ["en/TowerPro25aRegler"]
Converting TowerPro 50A ESCs to TWI/I2C
Changes needed
BR To convert a TowerPro 50A ESC to allow it to be controled over the I2C (TWI) interface by the flight controler you have to cut two connections on the PCB, to separate a resistor network from the SDA pin, and reconnect the network of three resistors to a different processor pin. In addition you can cut a third connection to free up the orange PWM wire for the servo lead so that you can use the existing servo lead as I2C/TWI cable with an additional GND wire. BR
Step by step conversion in pictures
BR ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11223,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1828_Formaat+wijzigen.JPG.html) BR One side of a new TowerPro 50A ESC. BR ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11225,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1829_Formaat+wijzigen.JPG.html) BR Other side of a new TowerPro 50A ESC. BR ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11227,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1831_Formaat+wijzigen.JPG.html) BR Fully unpacked new TowerPro 50A ESC. BR ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11229,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1833_Formaat+wijzigen.JPG.html) BR Fully unpacking is not a good idea as the heatsink is held in place with cream and will start sliding, so you will have to tape it in place temporarily. BR ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11231,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1837cut.jpg.html) BR This is a simpler way of keeping the heatsink in place while converting the ESC. BR ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11235,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1840_Formaat+wijzigen.JPG.html) BR First part of the conversion completed with the resistor network reconnected to a different processor pin BR ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11237,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1842_Formaat+wijzigen.JPG.html) BR SDA and SCL pins connected to the red and orange servo leads after cutting the old connection to the orange lead. As far as I can tell at the moment the red servo wire is not connected to anything (these ESCs do not have a BEC). BR ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11239,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1844_Formaat+wijzigen.JPG.html) BR Programming adapter soldered to the MISO, MOSI, SCK, RST, and GND, and temporary connectors for battery and motor in place, ready for reprogramming and testing. BR ImageLink(http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=11241,http://gallery.mikrokopter.de/main.php/v/tech/CIMG1846_Formaat+wijzigen.JPG.html) BR Close up of the temporary programming connections. I-ve found quickly soldering the wires to the pins or resistors or pads, is as quick as using a programming adapter made from Fimo clay as those tends to be a less then 100% perfect fit. BR
Final steps in the conversion
BR Next step is to reprogram the processor, test the ESC with a flight controler and an old motor to ensure the reprogramming went well and the ESC is correctly translating I2C/TWI throttle settings into motor RPMs, remove the temporary programmer wiring, epoxy all other new wiring in place to avoid breaks or shorting out of any wiring, and re-heat-shrink the ESC.
BR ![/!\](/moin_static199/mk-style3/img/alert.png "/!\"){kind=small}
ToDo: hier gibt es noch etwas zu tun