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    Cameron Sherry
    2021年2月19日

    How is the Raspberry Pi powered with Nyboard V1?

    在 Hardware

    I have a RasPi 3B+ and some female header connectors. On the V1, I can see that the RasPi plugs its GPIO headers directly into the Nyboard. I assume this is how it's powered but I'm not sure.

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    K
    keno-san
    2021年5月19日

    Thank you, everyone!

    I'll take your advice and try again.

    By the way, I use this picture as a method of partial pressure. I have a lot of 1kΩ resistors.


    1

    lee smith
    2021年5月19日

    yes you need resistors on the 2 wires to the pi, example here: https://tutorials-raspberrypi.com/raspberry-pi-ultrasonic-sensor-hc-sr04/

    1

    K
    keno-san
    2021年5月16日

    I can solder a 2x5 socket on NyBoard to plug in a Raspberry Pi 3A+ .

    By the way, can anyone advise me on how to provide a 5V power supply for the sensors connected to the Raspberry Pi?

    I expected it can provide from for Grove socket or their front pinhole on Nyboard, but it seems not to work well.

    1
    R
    Rongzhong Li
    2021年5月16日
    回覆

    The Pi's 5V and Grove's 5V are generated by independent chips.

    Grove's 5V can only supply 500mA.

    Pi's 5V can supply 3A and can be acquired from one 5V pin of the 2x5 socket

    https://docs.petoi.com/nyboard/nyboard-v1_0


    What sensor would use that large current?

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    K
    keno-san
    2021年5月17日
    回覆

    @Rongzhong Li

    I used a simple ultrasonic sensor to make this connection. Please forgive the poor picture😓

    I tried with a Python program and GPIO combination that works fine when using 5V power from the RPi, but no response when taking 5V power from the Nyboard.

    Do I need to insert a resistor in the circuit?



    按讚

    R
    Rongzhong Li
    2021年5月19日
    回覆

    Yes, Pi works at 3.3V logic level. The sensor uses 5V. So it may actually damage your Pi's GPIO if you wire them directly.

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    L
    <