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New library GD2ESP32 for ...

Forum: ESP32
Last Post:  lightcalamar
4 hours ago
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Restructured sections

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Tips F407 SDIO reader

Forum: Codigos
Last Post:  lightcalamar
22-03-2018, 19:52 14
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Trouble with SDcard

Forum: STM32
Last Post:  lightcalamar
22-03-2018, 19:09 33
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New library GD23Z32

Forum: GD23Z32
Last Post:  lightcalamar
20-03-2018, 15:55 24
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  Scissor for Poly
Posted by:  jblazeg - 26-10-2017, 15:55 18 - Forum: Programación graficos por computadora - Replies (2)

Hope it's ok when I use English because I'm German and I do not have that much space lef tin my brain for another foreign language ;-)

I'm using Poly to draw a certain graphic, but now I want to use Scissor to restrict the painting area. It's not working because "Poly" uses Scissor itself. Any ideas how to move forward?

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  Tutorial: Instalación de GD3USDIO con soporte para teensy 3.5/.36
Posted by:  TFTLCDCyg - 26-10-2017, 11:59 49 - Forum: Teensy - Replies (1)

Procedimiento general

1. Descargar la versión de teensyduino que tenga soporte para el IDE de arduino favorito

La versión del teensyduino al momento de realizar este minitutorial es la 1.40; tiene soporte para los IDE´s: 1.0.6, 1.6.5-r5, 1.8.1, 1.8.2, 1.8.3, 1.8.4 y 185

Link para descarga directa del Teensyduino 1.40

2. Ejecutar el instalador descargado en el paso anterior con privilegios de administrador

3. Seleccionar la carpeta en la que está instalado el IDE arduino soportado por el teensyduino, en este caso lo haré en el IDE 1.8.3

4. Al finalizar el proceso de instalación, se creará el core para teensy en la carpeta C:\arduino-1.8.3\hardware

Instalación de las librerías GD3USDIO y SdFat 

Para poder usar las pantallas FT8XX con la actualización mas reciente, podemos realizar alguna de las siguientes opciones:

Opción 1: GD3USDIO y SdFat en la ruta  C:\arduino-1.8.3\hardware\teensy\avr\libraries

Opción 2: GD3USDIO y SdFat en la ruta C:\Users\(Nombre de la PC)\Documents\Arduino\libraries

Opción 3: GD3USDIO en la ruta  C:\arduino-1.8.3\hardware\teensy\avr\libraries
               SdFat en la ruta C:\Users\(Nombre de la PC)\Documents\Arduino\libraries

Listo, con esto ya podemos tener acceso a las prestaciones del lector SDIO del Teensy 3.5/3.6 en nuestras pantallas FT8XX

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  Trouble with "SdFatSdioEX SD"
Posted by:  jblazeg - 26-10-2017, 09:59 39 - Forum: Teensy - Replies (4)


I use Arduino IDE 1.8.1 + Teensyduino 1.35. I want to use the latest GD3U SDIO with a Teensy 3.6 and FT813 Riverdi 7 "screen.

Which Sd library should I use and where do I put it?


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  Human Voice audio from SD card
Posted by:  raufjay - 25-10-2017, 02:07 34 - Forum: GD2UB - Replies (5)

I am trying to play some human voice audio files already converted in 8 bit ulaw format. What I find in AN338 is very complex process to load the audio file from SDcard and play on FT811. 

I also tried the following code, I took out from James book and modified to work with GD2UB library. The noise.gd2 file is already copied on to SD card. The code compiles alright, but when I run the code, I see the message on LCD saying I need to copy *.gd2 file onto SD card. Whereas the noise.gd2 file is already on SD card root directory.

Any easier way to play the audio file on FT811 from the SD card?

NOTE: This I am trying out on STM32 bluepill board. On this board every thing is working, including FT811 built-in Audio, piano, organ etc.


# include <EEPROM.h>
# include <SPI.h>
# include <GD2UB.h>
# include "noisy_assets.h"
void setup()
static void saydigit(byte n)
uint32_t base, len;
switch (n) {
case 0: base = DIGIT_0; len = DIGIT_0_LENGTH; break;
case 1: base = DIGIT_1; len = DIGIT_1_LENGTH; break;
case 2: base = DIGIT_2; len = DIGIT_2_LENGTH; break;
case 3: base = DIGIT_3; len = DIGIT_3_LENGTH; break;
case 4: base = DIGIT_4; len = DIGIT_4_LENGTH; break;
case 5: base = DIGIT_5; len = DIGIT_5_LENGTH; break;
case 6: base = DIGIT_6; len = DIGIT_6_LENGTH; break;
case 7: base = DIGIT_7; len = DIGIT_7_LENGTH; break;
case 8: base = DIGIT_8; len = DIGIT_8_LENGTH; break;
case 9: base = DIGIT_9; len = DIGIT_9_LENGTH; break;
GD.sample(base, len, 8000, ADPCM_SAMPLES);
void loop()
 byte d = GD.random(10);

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  GD2UB with esp32
Posted by:  raufjay - 21-10-2017, 03:28 39 - Forum: GD2UB - Replies (6)

I just got esp32 board. It is amazing. 
I wanted to have your idea about, can this GD2UB library be used for esp32 as well?
I have a project, considering ample io ports with a lot of communication peripherals built into esp32 module, I am thinking to use esp32 standalone with FT810 or FT811 with 4" LCD.
I tried it but it seems not compiling.

I get following error message:

Arduino: 1.8.4 (Windows 10), Board: "ESP32 Dev Module, QIO, 80MHz, 4MB (32Mb), 921600, None"

In file included from C:\Users\AbdulRauf\Documents\Arduino\LargerFonts\LargerFonts.ino:1:0:

C:\Rauf\development\Arduino\Arduino1.8.4\libraries\GD2UB/GD2UB.h:17:19: fatal error: SdFat.h: No such file or directory

compilation terminated.

exit status 1
Error compiling for board ESP32 Dev Module.

But when I select STM32F boards, that error disappears and program compiles normally.

Any ideas?



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