Connect MKR WIFI 1010 to 32x16 Led panel

Using Arduino Displays
1

Hi There,

I found several pages on the internet on how to connect an Arduino Unu to a 32x16 Led panel (P10).
But I cannot seem to find the schema how to connect an Arduino MKR WiFi 1010 to the same 32x16 Led Panel.

From what I read, the 32x16 Led panel has the following pins:
Enable: This pin is used to control the brightness of the LED panel, by giving a PWM pulse to it.
A, B: These are called multiplex select pins. They take digital input to select any multiplex rows.
Shift clock (CLK), Store clock (SCLK), and Data: These are the normal shift register control pins.

Enable is connected to Pin 9 on the Uno. But Pin 9 on the MKR is SCK.
A is connected to Pin 6 and B to Pin 7. Is that the same on a MKR?
CLK and SCLK is not an issue.
Data is connected to Pin 11. Which Pin is it on the MKR?

Thank you.

2

@glansing, welcome. Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advice on) your project :wink: See About the Installation & Troubleshooting category.

3

Please provide some links. The ones that I found do use CLK and SCLK; e.g. LED Display Board using P10 LED Matrix Display and Arduino or https://www.instructables.com/Display-Text-at-P10-LED-Display-Using-Arduino/.

Which library are you planning to use? DMD2 ( GitHub - freetronics/DMD2: Beta release of a new Dot Matrix Display Arduino library ) ?

I have no experience with P10, the MKR or the DMD2 library but I had a quick look. The easiest might be to use SoftDMD where you can specify the pins.

The constructor (from the source code)

SoftDMD::SoftDMD(byte panelsWide, byte panelsHigh, byte pin_noe, byte pin_a, byte pin_b, byte pin_sck,
          byte pin_clk, byte pin_r_data)
  : BaseDMD(panelsWide, panelsHigh, pin_noe, pin_a, pin_b, pin_sck),
    pin_clk(pin_clk),
    pin_r_data(pin_r_data)
{
}

In your sketch, it would look somethng like

SoftDMD dmd(WIDTH,HEIGHT,9,6,7,?,?,11);

You will have to fill in the pins with the ? once you have figured out to which pins you want to connect them.

There might be better ways using the SPI but I'm not sure.

4

Those are the links I meant. There are a few more, but there explain basically the same.
Thank you for pointing me in the right direction. This looks usefull.

5

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