Course Booklets

The ESP32 Dev Board — the brain of your Medibox. Wi-Fi + Bluetooth built in.

Welcome to the Rysera Intermediate Course — Course on Integrated System Design! Over the next few weeks you're going to build something really cool: a Medibox.

By the end of this course, you'll have:

• Wired up real electronic components on a circuit board
• Designed your own PCB (Printed Circuit Board) in professional software
• Written C++ code to make your device work
• Connected your device to the internet
• 3D-designed and printed an enclosure for it

Today we're going to work with the 1.3" TFT Display. TFT stands for Thin Film Transistor — it's a colorful screen, just like the screen on your phone, but much smaller!

1.3" TFT (240×240)

The display has 8 pins — power, ground, and 6 signal wires. It communicates using SPI which means it only needs a few wires to send a full-color image to the screen at high speed.

What is SPI?

SPI — Serial Peripheral Interface — is a communication "language" that your ESP32 and TFT screen use to talk to each other. Think of it like texting: the ESP32 sends messages (pixel data), and the TFT displays them.

Wiring Diagram (ESP32 → 1.3" TFT)

Let's write your first Medibox code! Follow the steps below carefully.

// Day 1 Starter Code — Display Your Name
#include <TFT_eSPI.h>
#include <SPI.h>

TFT_eSPI tft = TFT_eSPI();

void setup() {
    tft.init();
    tft.setRotation(1);
    tft.fillScreen(TFT_BLACK);

    // Set text properties
    tft.setTextColor(TFT_GREEN, TFT_BLACK);
    tft.setTextSize(3);

    // Display your name!
    tft.setCursor(20, 80);
    tft.print("Hello, World!");
}

void loop() {
    // Nothing here for now
}