Hardware Setup

This page provides detailed instructions on how to connect your ESP32 to the OLED display.

Components

• ESP32 (CH340C, USB Type C): Makerlab Electronics
• ESP32 Expansion Board (X0R7 Black): Makerlab Electronics
• OLED Display 1.3-inch White (GME12864-78): Makerlab Electronics
• Breadboard: Makerlab Electronics (Search for "breadboard")
• Jumper wires (4 pcs, Male to Female): Makerlab Electronics (Search for "jumper wires")

Wiring Diagram

Connection Instructions

1. Power Configuration:

   • On the ESP32 expansion board, locate the yellow jumper.
   • Move the jumper from the 3.3V position to the 5V position. This ensures the OLED receives 5V power.

2. Wiring:

   • Place the OLED display on the breadboard.

   • Connect the following pins:

     • ESP32 Expansion Board VCC to OLED VCC
     • ESP32 Expansion Board GND to OLED GND
     • ESP32 Expansion Board D21 to OLED SDA
     • ESP32 Expansion Board D22 to OLED SCL

Pin Connections

ESP32 Expansion Board	OLED Display
VCC	VCC
GND	GND
D21	SDA
D22	SCL

Notes

• Ensure all connections are secure.
• Double-check the pin assignments.
• Refer to your ESP32 expansion board documentation for specific pin layouts.