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    John Gallaugher
    2019年11月05日

    Connections: 2x5 header + FTDI Uploader on Nyboard v02

    在 Clinic

    Hi,

    I'm enjoying setting up my Nybble from the kickstarter kit w/nyboard 0.2. I'll be using a Pi 3B+, as well. I have a few questions:


    2X5 HEADER: The assembly instructions don't explicitly state that the 2x5 pin headers should be soldered into the Nyboard. Am I correct in assuming that they are to be inserted into the Nyboard as shown below, with pins soldered into the same side as the pins for inserting the servos (e.g. "under" the block, on the bottom of the board as positioned below)?



    Is this the only connection between the Nyboard & the Pi and the only soldering needed?


    BENDING THE FTDI CONNECTION: The FTDI uploader looks like it just slides into the four holes of its header. I'm not exactly clear on how I should be bending the attached header for the FTDI. I see the image below (take from the instructions). Does this mean that the FTDI uploader board rests underneath Nyboard pushed up against the plastic connections for the wires of the servos? Does this leave the board sticking out the side on the cat's right arm near the head? And is the idea to remove this board after sketches have been uploaded?


    CHECKING + ADJUSTING SERVO VOLTAGE: The Nyboard 02 instructions state:

    "To ensure safety during operation, please do not connect the servo to NyBoard first. Check the rated voltage of the servo, use a voltmeter to monitor the output for servos and adjust the potentiometer to obtain a desired voltage."

    This is a step I've never done on a project before. Do I need to complete this if I purchased the kickstarter kit & am using all of the servos sent in the kit?

    If I do, may I use a product like this? https://www.amazon.com/dp/B00LTOD4F4/ref=cm_sw_em_r_mt_dp_U_ATEWDb326MSA6

    For adjusting the servo - do I simply insert a small screwdriver in the small hole next to the rotating gear and turn until I'm around 5.5V (which assembly doc suggests is best for 'balanced' performance)?


    Thanks so much for answering these & earlier questions!

    John

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    J
    John Gallaugher
    2019年11月06日

    Great - I'm totally new to the hardware side of things, so I'm assuming this means just shift this plastic piece over so it looks like this. These connections are pushed down due to Pi manufacturing issue. They will be covered with electrical tape before adding the Pi. Hoping this doesn't blow anything up :)



    按讚

    R
    Rongzhong Li
    2019年11月06日

    1. 2x5 SOCKET are to be inserted into the Nyboard, with pins soldered into the same side as the pins for inserting the servos (e.g. "under" the block, on the bottom of the board as positioned below)

    Yes


    Is this the only connection between the Nyboard & the Pi and the only soldering needed?

    Yes


    2. BENDING THE FTDI CONNECTION

    The bending is considering the geometric constraints when NyBoard is connected with Pi. The six pin socket will be in the belly of Nybble so it has to be bent out. The uploader will access the socket from the side.



    3. CHECKING + ADJUSTING SERVO VOLTAGE

    Since you are using V0_2, just jump connect BATT and V_S. It's more stable than going through the tunable step down chip.

    按讚
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