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product:usb2ax:gpio
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product:usb2ax:gpio [2013/04/02 03:37] xevel |
product:usb2ax:gpio [2013/04/02 03:41] (current) xevel |
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| The solder jumper (closed by default) links TX and RX together to form the DATA line. This is used to achieve the half-duplex behavior needed to talk to Dynamixel servos. By cutting the trace between the two solder pads, you can untie them and use the USB2AX as a normal USB to full-duplex TTL serial. Then, if you want to get back to the original behavior, just solder back the two pads together. | The solder jumper (closed by default) links TX and RX together to form the DATA line. This is used to achieve the half-duplex behavior needed to talk to Dynamixel servos. By cutting the trace between the two solder pads, you can untie them and use the USB2AX as a normal USB to full-duplex TTL serial. Then, if you want to get back to the original behavior, just solder back the two pads together. | ||
| - | Notice that ground is common between the USB plug, the MCU and the Dynamixel connector. | + | Notice that ground is common between the USB plug, the MCU and the Dynamixel connector. The middle pin of the Dynamixel, labeled 12V, is not connected to the rest of the USB2AX circuitry, but it is connected to the power line of the servos, never short it with any other pin! |
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product/usb2ax/gpio.1364866658.txt.gz · Last modified: 2013/04/02 03:37 by xevel
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