Elecrow HMI 7 display

This repository contains updated Arduino code for the Elecrow HMI 7" display.

All code is based on the sample programs provided in the Elecrow Wiki, but is updated to be used in the Arduino IDE V2 and with current library versions.

Requirements

You need the device: ESP32 Display 7.0" Intelligent Touch Screen Wi-Fi&BLE 800*480 HMI Display
Arduino IDE 2.2.1

Download this repository or clone it via git by executing

cd MySuperRepoDirectory
git clone https://github.com/ramdacxp/ElecrowHmi7.git

One-time setup

In the Arduino IDE add support for generic ESP32 boards in the File > Preferences dialog. Add the following line to the Additional board manager URLs field:

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

Build can take some time. If you like to see what's going on, enable show verbose output during compile.

In the Library Manger on the left side, search for the following libraries and install them:

LovyanGFX (Display, by lovyan03, v1.1.12)
TAMC_GT911 (Touch Panel, by TAMC, v1.02)

Connect and upload code

Open one of the *.ino files in the Arduino IDE
Connect the device via USB and check its COM port in the Windows device manager (which most likely will be COM3)
In the selection above the code window, select the board ESP32S3 Dev Module and port COM3
In Tools > Partition Scheme choose Huge APP (3MB No OTA/1MB SPIFFS)
In Tools > PSRAM choose OPI PSRAM
Activate the firmware mode of the device by holding down the BOOT button on the device and shortly pressing the RESET button
Compile and upload the code via the [->] button in the IDE
Open the Serial Monitor window via the [.-O..] button
If the upload was successful, press the RESET button on the device to leave the firmware mode and to run your program
Have fun ;)