How to chain several 32x16 P6 module?

Mihai.Popa 2022-10-17 21:19:54 2177 Views5 Replies
Hello,

I purchased 2 32x16 P6 (SKU:DFR0471) module and I want to connect in a chain using an Arduino Mega or ESP8266/32.
The problem is that I don't find any working library for this job.
If I connect only one module with Arduino Mega or ESP8266/32, the display work perfect with any Arduino IDE library.
Please provide me a guide or library or other information that I can use to do this chain with Arduino Mega or ESP8266/32.
Thank you,
Mihai

2022-11-17 17:06:24

Hello,

First of all, the example from https://wiki.dfrobot.com/32x16_RGB_LED_Matrix_-_6mm_pitch_SKU_DFR0471 is working; I don't have any problem with it.

My issue was how can I use multiple displays with any MCU (Arduino, RPI Pico, etc).

I find two solutions for this:

1. using RPI Pico or Interstate 75 - RGB LED Matrix Driver from Pimoroni (here, if this module is not available, you can use only am RPI Pico module connected to multiple displays using Dupont cables - https://shop.pimoroni.com/products/interstate-75?variant=39443584417875 ;2. using an specialized controller from here: https://www.ebay.com/itm/363985745237 ;

Thank you,

Mihai

Mihai.Popa

2022-10-21 21:56:18

Hi again,

Could you, please, tell me if this controller will work with these P6 32x16 led panels in chain configuration?

Do you (DFRobot) have/produce/know what controller/dev board can be used with these 32x16 led panels in chain config?

Thank you,

Mihai

Mihai.Popa

2022-10-19 15:39:16

Hello again,

I see the following ICs on this 32x16 P6 (SKU:DFR0741):

- SM74HC245D - 2 pieces - Octal bus transceiver 3-state;- SM74HC123D - 1 piece - Dual retriggerable monostable multivibrator with reset;- SM74HC138D - 1 piece - 3-to-8 line decoder/demultiplexer; inverting;- SM16208S - 12 pieces - 16-channel constant current driver chip with built-in dual Latching and under-column shadowing for high refresh and high utilization displays screen applications.

On the back of the panel are two connectors for Data In and Data pou; near the Data in connector is a label: HUB75.

So, my question is: this panel can be used in a daisy chain? if yes, with what controller? it is something special? Could provide more info regarding to this chain connection?

Thank you,

Mihai

Mihai.Popa

2022-10-18 19:54:07

Hello.

In the page that send me is no indication about how to connect more that one module to Arduino; the example from the library is referring to only one module.My question is: it is any possibility to connect more than one module to Arduino/ESP8266/ESP32? If yes, do you know an example?Or what should I modify the library from wiki to work with more than one module?

PS: the example work fine with only one module.

Thank you,

Mihai

Mihai.Popa

2022-10-18 15:14:24

Hi! https://wiki.dfrobot.com/32x16_RGB_LED_Matrix_-_6mm_pitch_SKU_DFR0471

Is there any problem when you use the sample code from the wiki? Please provide a compilation error or a description of the failure.

jenna