🔧 Fixes incorrect Boot Mode selection
🔓 Compatible with ESP32 DevKit-V4 only
🔌 Stepdown Buck Converter MP1584 supports
⚡ Includes 3.3V and 5V additional Power Expander
| Label | Component | I/O | Switchable | Description |
|---|---|---|---|---|
| S1 | Pushbutton | GPIO 34 | Parallel with pull-up 10K Resistor to 3.3V | |
| S2 | Pushbutton | GPIO 35 | Parallel with pull-up 10K Resistor to 3.3V | |
| L1 | 3mm LED | GPIO 17 | ✅ | Series 330 ohm Resistor for current limiter, Toggle switch (IV) to enable |
| L2 | 3mm LED | GPIO 16 | ✅ | Series 330 ohm Resistor for current limiter, Toggle switch (III) to enable |
| L3 | 3mm LED | GPIO 4 | ✅ | Series 330 ohm Resistor for current limiter, Toggle switch (II) to enable |
| L4 | 3mm LED | GPIO 2 | ✅ | Series 330 ohm Resistor for current limiter, Toggle switch (I) to enable |
| SG1 | Buzzer DC | GPIO 32 | ✅ | Place (B) jumper on pins 1-2 to enable |
| DISP | OLED 128x32 | GPIO 21 (SDA) GPIO 22 (SCL) |
✅ | Place (D) jumper on pins 1-2 to enable |
| C1 | Polar Capacitor | EN | Determine ESP32 to FLASH mode upon power-up |
