S3-Phone

S3-Phone is a simple MCU-based phone that uses the ESP32-S3 and the SIM800L module. It is designed to be a simple and easy-to-use phone that can be used for making and receiving calls and sending and receiving SMS messages. The phone also has a stylish and modern UI design that gives it a premium look and feel.

Setup

Note: All the commands below are for Linux. If you are using Windows, you can use the Windows equivalent commands.

Software

1. Install PlatformIO.

2. Clone the repository.

   git clone https://www.github.com/jetsup/s3-phone

3. Copy the Credentials.example.hpp file to include/Credentials.hpp and fill in the necessary credentials.

   cp include/Credentials.example.hpp include/Credentials.hpp

4. Copy resources/lv_conf.sample.h to .pio/libdeps/4d_systems_esp32s3_gen4_r8n16/lv_conf.h.

   cp resources/lv_conf.sample.h .pio/libdeps/4d_systems_esp32s3_gen4_r8n16/lv_conf.h

   Note: The path may vary depending on the board you are using. The path above is for the 4D Systems ESP32-S3 Gen4 R8N16 board.

5. Build and upload the project to the your board.

   platformio run --target upload

Hardware

This project uses the ESP32-S3 and the ILI9341 2.4" TFT display.

Wire your components as defined in include/Config.hpp file.

ESP32-S3	ILI9341 TFT Display
3V3	VCC
GND	GND
15	CS
16	RST
17	DC
18	MOSI/SD1
8	SCK
3	LED
9	MISO/SD0
8	T_CLK
10	T_CS
18	T_DIN
9	T_DO
N/C	T_IRQ

Future improvements

• Replace all the callback directive strings with enum.
• Save all WiFi password to storage.
• Make it to accommodate different screen sizes.
• Add save or cancel dialog when you press the back menu button on the navigation bar in editable screens.
• In selecting timezones, add a search bar.
• On timezone change, handle leap year.