BoardPilotW25Q64 SPI flash memory (8 MB) with ESP32
Supply 3.3 V
Bus SPI
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| CS | SPI chip select | D5 | Chip select, active LOW. Never use ESP32 GPIO 6 to 11 |
| DO | SPI MISO | D19 | Data out (IO1) |
| WP | Not wired to the ESP32 | — | Write protect, active LOW. Tie to VCC |
| GND | Ground | GND | |
| DI | SPI MOSI | D23 | Data in (IO0) |
| CLK | SPI clock | D18 | |
| HOLD | Not wired to the ESP32 | — | Hold, active LOW. Tie to VCC |
| VCC | Power | 3V3 | 2.7 to 3.6 V. Never 5 V |
Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.
Sources
- Winbond W25Q64FV datasheet, Pin configuration SOIC 208-mil; JEDEC ID EF 40 17 (instruction 9Fh); supply 2.7 to 3.6 V
Try it in 3D in BoardPilot
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Part data: CC BY 4.0, free to reuse with credit to BoardPilot.