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  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Making a mechanical gyro? in Sensors
    How fast can you spin that encoder before it starts losing steps?
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  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    More crammed than this 33x50mm thing? Probably not on average, but the dual-rail buck converter area, and the video-switch-and-general-inverter...
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  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    Not sure this is all that useful. The board is fairly crammed, so it's hard to tell from the CAD. Maybe I'll remember to take a photo when I get home.
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    69 replies | 14710 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    They didn't have QFN footprints to match, so I constructed them in KiCad using the recommended dimensions from the data sheets. Also: I use "QFN" to...
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  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    I have used exactly this circuit to interface between Teensy 3.2 and 3.5 and the DXL bus, yes! The RX pin has a 560 Ohm / 1 kOhm resistive divider...
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    69 replies | 14710 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Making a mechanical gyro? in Sensors
    Oooh, that'd be awesome!
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    10 replies | 3443 view(s)
  • jwatte's Avatar
    2 Weeks Ago
    jwatte replied to a thread servo sequencing program? bipedal walker. in Mech Warfare
    Those are RC servos, using PWM control. You can generate such pulses from any of the Arduino boards, using the Servo library. I'd recommend using a...
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    2 replies | 769 view(s)
  • jwatte's Avatar
    3 Weeks Ago
    jwatte replied to a thread Mech Warfare at the NorCal Robotics Expo in Mech Warfare
    I'd like to attend if possible, too! Also, I'd like to help a bit, perhaps with scoring plates or somesuch. Maybe we can make an order to Macrofab...
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    5 replies | 1888 view(s)
  • jwatte's Avatar
    3 Weeks Ago
    jwatte replied to a thread Making a mechanical gyro? in Sensors
    That's what the magnetometer (and ideally also a GPS input) is supposed to help you solve, using some kind of Kalman conditioning. Another option is...
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    10 replies | 3443 view(s)
  • jwatte's Avatar
    3 Weeks Ago
    jwatte replied to a thread Making a mechanical gyro? in Sensors
    Optical flow from a camera to detect movement and orientation isn't half bad! You could get a NVIDIA Jetson something-or-other and a camera for it;...
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    10 replies | 3443 view(s)
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About Ron

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Date of Birth
January 17, 1970 (49)
About Ron
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United States
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Computers, Robtics, RC Helicopters, Cars, Video games

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Rx-24f servos, Ax-12a servos, cm-700 12-15-2015
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  1. jwatte jwatte is offline

    Agent Smith

    jwatte
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    • Created by Ron
    • Synopsis: A modified Bioloid Humanoid Type B , Roboard RB-110 running an optimized version of windows XP SP 2, Using Modified type B IK walking gait, Cnc Aluminum machined brackets. Custom Delrin tubbed feet.

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