View source for ESP32-S2 Parallel TFT with Touch(3.5'')


== Introduction ==
The 3.5" 320x480 TFT LCD driver is ILI9488, it uses 16bits parallel line for communication with ESP32-S2, the main clock could be up to 20MHz, make the display smooth enough for videos; You can freely use some of Mabee pins(A I2c and a IOs) with the breakout connectors, to connect the ESP32-S2 display with sensors/ actuators, suitable for IoT applications. <br>

'''Model: [https://www.makerfabs.com/esp32-3.5-inch-tft-touch-resistive-with-camera.html Resistive: ESPTFT35RE]'''<br>

[[File:ESP32-S2_Parallel_TFT_with_Touch_A001.jpg|500px]]<br>

== Features ==

*Integrated ESP32-S2 with 2.4G WiFi<br>
*Wi-Fi Protocols: 802.11b/g/n(802.11n up to 150Mbps),A-MPDU and A-MSDU aggregation and 0.4us guard interval support<br>
*Wi-Fi Frequency range: 2.402GHz - 2.483Ghz<br>
*Arduino Compatible: You can play it with Arduino IDE<br>
*LCD 3.5 inch Amorphous-TFT-LCD (Thin Film Transistor Liquid Crystal Display) for mobile-phone or handy electrical equipment<br>
*LCD Driver: ILI9488(16bits parallel line)<br>
*LCD Resolution: 320*480<br>
*FT6236 Series ICs are single-chip capacitive touch panel controller IC with a built-in 16 bit enhanced Micro-controller unit (MCU)<br>
*NS2009: A 4-wire resistive touch screen control circuit with I2C interface, which contains A 12-bit resolution A/D converter<br>
*Power supply: 5V, Type-C USB<br>
*Micro SD card slot on the board<br>
*Dual USB Type-C: one for native USB and one for USB-to-UART<br>
*Two Mabee interfaces<br>
*Board size: 66mm * 85mm<br>


== Diagram ==
[[File:ESP32-S2_Parallel_TFT_with_Touch_A002.JPG|500px]]<br>
Dimension<br>
[[File:ESP32 TFT LCD with Camera_a100.png|500px]]<br>
Note:unit is mm.<br>
PINOUT<br>
[[File:ESP32-S2_Parallel_TFT_with_Touch_B102.JPG|700px]]<br><br>

==Usage==
Warning: Don't operate when in power supply on<br>
'''[https://github.com/Makerfabs/Project_Touch-Screen-Camera Github:Project_Touch_Screen_Camera]'''

===Software setup===
'''NOTE: It shows different results in some version, the same version is recommaned.'''<br>
1.Install the Arduino IDE V1.8.10.<br> 
2.Install the ESP32-S2 boards supporting V2.0.1<br>
*After Arduino IDE installed, there is no package to support ESP32-S2, we need to install the ESP32 package in Arduino IDE to continue.<br>
*Select “File>Preferences>settings>Additional Boards Manager URLs” to fill the link: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json<br>
[[File:ESP32-S2_Parallel_TFT_with_Touch_A005.jpg|700px]]<br>
*Click “Tools>Board>Boards Manager” to search for and install the ESP32 library:<br> 
[[File:ESP32-S2_Parallel_TFT_with_Touch_A006.jpg|700px]]<br>
3.Install LovyanGFX library V0.4.7<br>
:Click “Tools> Manager Libraries” to search for and install LovyanGFX library.<br>
[[File:ESP32-S2_Parallel_TFT_with_Touch_A009.jpg|700px]]<br>
5.Select and setting the parameter in the Tools menu, as the picture:<br>
[[File:ESP32-S2_Parallel_TFT_with_Touch_A010.jpg|700px]]<br>
Note: Different PC has different Serial COM number.

===Graph on LCD===

1. You can get the sourve code from github: '''[https://github.com/Makerfabs/Makerfabs-ESP32-S2-Parallel-TFT-with-Touch/tree/main/example/simple_test/Graph16_3.5  Graph16_3.5]'''<br>
2. Open the file [https://github.com/Makerfabs/Makerfabs-ESP32-S2-Parallel-TFT-with-Touch/tree/main/example/simple_test/Graph16_3.5 Graph16_3.5].<br>
<pre>
void setup()
{
  pinMode(LCD_CS, OUTPUT);
  pinMode(LCD_BLK, OUTPUT);

  digitalWrite(LCD_CS, LOW);
  digitalWrite(LCD_BLK, HIGH);

  Serial.begin(115200);
  Serial.println("");
  Serial.println("");
  Serial.println("Lovyan's LovyanGFX library Test!");

  tft.init();
  tft.setRotation(0);
  tft.startWrite();
}
</pre>
3. Verify it and upload.<br>
[[File:ESP32-S2_Parallel_TFT_with_Touch_A012.jpg|500px]]<br>
If failed to upload the code as the picture, please upload again and try to press the Flash switch when the code is uploading.<br>
4. After done uploading, reset the ESP32-S2 and you will get a graph on the screen.<br>
[[File:ESP32-S2_Parallel_TFT_with_Touch_A014.jpg|500px]]<br>

===Touch the screen===

1. You can get the source code from our github:'''[https://github.com/Makerfabs/Makerfabs-ESP32-S2-Parallel-TFT-with-Touch/tree/main/example/simple_test/touch16_3.5 touch16_3.5]'''<br>
2. Open the file “\/simple_test/touch16_3.5” with Arduino IDE.<br>
If you purchase a capacitive screen, make sure the code as below.<br>
<pre>
//#define NS2009_TOUCH  //Resistive screen driver
#define FT6236_TOUCH //Capacitive screen driver
</pre>
If you purchase a resistive screen, make sure the code as below.<br>
<pre>
#define NS2009_TOUCH  //Resistive screen driver
//#define FT6236_TOUCH //Capacitive screen driver
</pre>
4. Verify and upload the code, you can touch the screen.,a red circle will follow your finger on the screen.<br>
[[File:ESP32-S2_Parallel_TFT_with_Touch_A015.jpg]]<br>

===microSD card test===
1. You can get the source code from our github:'''[https://github.com/Makerfabs/Makerfabs-ESP32-S2-Parallel-TFT-with-Touch/tree/main/firmware/SD16_3.5 SD16_3.5]'''<br>
2. Copy a picture named logo.bmp to the microSD card. Insert the microSD card into the board.<br>
3. Open the file “/firmware/SD16_3.5/SD16_3.5.ino” with Arduino IDE.<br>
If you purchase a capacitive screen, make sure the code as below.<br>
<pre>
//#define NS2009_TOUCH  //Resistive screen driver
#define FT6236_TOUCH //Capacitive screen driver
</pre>
If you purchase a resistive screen, make sure the code as below.<br>
<pre>
#define NS2009_TOUCH  //Resistive screen driver
//#define FT6236_TOUCH //Capacitive screen driver
</pre>
4. Verify and upload the code, you can see the pic from microSD card on the screen.<br>

===Comparison===
[[File:ESP32-S2_Parallel_TFT_with_Touch_A020.jpg]]<br>
We can see from the table, ESP32-S2 Parallel TFT with Touch(3.5'') get the total elapsed: 1,051,437 microseconds, 5 times faster than others.<br>
Note: The first two data come from [https://youtu.be/wKP7fEGQ1wU?t=188 youtobe] <br>

== FAQ  ==
'''You can list your question here or contact support@makerfabs.com for technology support. Detailed descriptions of your question will be helped to solve your question.'''<br>
*Q: Why the display fails to respond sometimes I touch.<br>
:A: The touching interface is loose, please reconnect it.<br>

== Resources ==
*[https://www.espressif.com/sites/default/files/documentation/esp32-s2-solo_esp32-s2-solo-u_datasheet_en.pdf ESP32-S2-solo_datasheet]
*[https://github.com/Makerfabs/Makerfabs-ESP32-S2-Parallel-TFT-with-Touch github source]
*[https://github.com/Makerfabs/Makerfabs-ESP32-S2-Parallel-TFT-with-Touch/tree/main/hardware hardware]