ESP32 - Which shield?

netmindz · February 5, 2022, 9:15pm

Which is the the recommended shield design, there looks to be a choice, but no readme in that folder to explain pros/cons of each

I got 5 board printed from this example, have assembled one with no luck, not sure if HW or SW issue

Video example

Louis · February 5, 2022, 10:30pm

There’s some explanation here on my designs:

I got 5 board printed from this example, have assembled one with no luck, not sure if HW or SW issue

What config are you using? If you share more details I can try to troubleshoot

netmindz · March 4, 2022, 8:49am

Put another board together using the mode0 direct to panel and that worked, so either bad board or issue with mode1 where you use a cable. Do you need to make software change to use mode1 output?

netmindz · March 4, 2022, 8:55am

Thanks for the link, but doesn’t seem to say the pros and cons or difference been TMT and SMT designs

Louis · March 4, 2022, 9:23am

I know the THT version works to drive a matrix
The THT board is much larger but easier to solder

I would use the THT board unless you have a size constraint

Louis · March 4, 2022, 9:27am

You’ll need to change the define at the top of this file to use HUB75_ADAPTER_V0_THT_PINOUT

github.com

pixelmatix/SmartMatrix/blob/master/src/MatrixHardware_ESP32_V0.h#L423

      
        
                #define B_PIN   -1
                #define C_PIN   -1
                #define D_PIN   -1
                #define E_PIN   -1
            
            
    #define LAT_PIN GPIO_NUM_22
                #define OE_PIN  GPIO_NUM_19
            
            
    #define CLK_PIN GPIO_NUM_4
            
            
#elif (GPIOPINOUT == HUB75_ADAPTER_V0_THT_PINOUT)
            
            
    #pragma message "MatrixHardware: HUB75 Adapter V0 THT pinout"
            
            
    // ADDX is output on RGB pins and stored in external latch (need multiple of 32-bits for full data struct, so pad 2 CLKs to 4 here)
                #define MATRIX_I2S_MODE I2S_PARALLEL_BITS_8
                #define MATRIX_DATA_STORAGE_TYPE uint8_t
                #define CLKS_DURING_LATCH   4
            
            
    #undef BIT_A
                #undef BIT_B

You can also extract the relevant defines for HUB75_ADAPTER_V0_THT_PINOUT to a new header file, like this one so you don’t have to keep changing the GPIOPINOUT define:

github.com

pixelmatix/SmartMatrix/blob/master/src/MatrixHardware_ESP32_HUB75Adapter_SMT.h

/*
 * SmartMatrix Library - Hardware-Specific Header File (ESP32 HUB75 Adapter SMT Version)
 *
 * Copyright (c) 2020 Beaudoin (Pixelmatix)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

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