Wiring diagram ESP32 proyek mini tanpa resistor: potensiometer (GPIO34), tombol A (GPIO12), tombol B (GPIO13), LED merah langsung ke GPIO26, LCD I2C SDA (GPIO21) dan SCL (GPIO22).
⏚ GND RAIL
3V3 RAIL
ESP32
DevKit v1
GPIO 34
GPIO 12
GPIO 13
GND
3V3
GPIO 26
GPIO 21 (SDA)
GPIO 22 (SCL)
5V
🎛 Potensiometer
Sensor Analog
GND
OUT
3V3
🔘 Tombol A
GPIO 12
INPUT_PULLUP
🔘 Tombol B
GPIO 13
INPUT_PULLUP
🖥 LCD 16×2
I2C · Addr 0x27
GND
VCC
SDA
SCL
💡 LED Merah
Anoda → GPIO 26
Katoda → GND
Analog OUT → GPIO34
Tombol A → GPIO12
Tombol B → GPIO13
LED Anoda → GPIO26
SDA → GPIO21
SCL → GPIO22
VCC 5V → LCD
3V3
GND