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I see very confusing documentation on powering the Arduino MKR 1010. I would like to know what kind of cable to power it with (a weird connector port on its side).

Can I just put 5 V + (AC or DC?) on the Vin port and connect a ground?

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    what do you mean by weird connector? ... which one are you referring to?
    – jsotola
    Commented Apr 19, 2023 at 4:45
  • @jsotola there is only one weird connector on MKR boards :-)
    – Juraj ♦
    Commented Apr 19, 2023 at 15:27
  • forum.arduino.cc/t/lipo-connector-for-mkr-series-seriously/…
    – Juraj ♦
    Commented Apr 19, 2023 at 17:37
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    @jsotola it is relative. there are two connectors. one is USB, second is some JST. which one of them is the weird one? :-)
    – Juraj ♦
    Commented Apr 20, 2023 at 4:53
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    @greg your question is not very clear. Please have a read of How to ask a good question and then edit your question to suit.
    – sa_leinad
    Commented Apr 26, 2023 at 3:31

2 Answers 2

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The documentation shows three ways of powering the board see FAQs section Batteries, Pins and board LEDs

  1. Using a USB connector to provide 5V to the board. Typically, this is connected to a USB port on the PC you are using to program the board. Alternatively, a USB cable connected to a standard USB power supply could be used after the program has been loaded.

  2. Using the Vin pin to supply a REGULATED 5V (maximum 6V). Of course, this is DC. Yes, you would also connect the power supply GND to the board's GND pin.

  3. LiPo battery. This is a little more complicated to use safely and there is documentation on that as well - see the app note here to start. You absolutely need to understand how to use a battery with that board - there are safety concerns in this regard that can't be ignored.

Hope it helps.

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  • Thank you very much DrG. I am very new to Arduino.. There is no USB port( unless that is the small type "C"? connector on the end). I see the Vin pin and thanks to your " app note" insert I found what I need, a 2-pin JST-PH connector for the battery, now to look for it.
    – greg
    Commented Apr 19, 2023 at 16:50
  • found a proper USB connector, on my wifes Kindle. thanks again
    – greg
    Commented Apr 19, 2023 at 17:25
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Just if you are wondering,The mkr1010 uses Micro USB (USB-B) arduino doc says. https://docs.arduino.cc/hardware/mkr-wifi-1010

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    that is not the weird connector
    – Juraj ♦
    Commented Sep 18, 2023 at 4:33
  • Then is it this Battery connector: The connector is of type JST S2B-PH-SM4-TB(LF)(SN). Mating connector is JST PHR-2?
    – V205
    Commented Sep 18, 2023 at 23:41
  • This maybe? Additional I2C Port The MKR WiFi 1010 has an additional connector meant as an extension of the I2C bus. It's a small form factor 5-pin connector with 1.0 mm pitch. The mechanical details of the connector can be found in the connector's datasheet. The I2C port, also referred to as the Eslov self-identification port within Arduino, comes with: SDA, SCL, GND, +5V, and an extra digital pin meant to send an alarm to the otherwise plain I2C devices connected to it. The pinout is shown in the following image:
    – V205
    Commented Sep 18, 2023 at 23:42

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