unPhone 9
unPhone 9 is a development board based on the ESP32S3 microcontroller using XTENSA architecture.
This board features a maximum CPU frequency of 240 MHz and 8MB flash memory.
About unPhone 9
An advanced version of the unPhone series, featuring ESP32-S3 and enhanced communication capabilities.
Technical Specifications
Complete technical specification details for unPhone 9
Quick Setup
Copy-paste configs for unPhone 9 - auto‑generated from this board's exact hardware specs.
In Arduino IDE 2 select Unphone9 from the esp32 by Espressif package. In PlatformIO use board = esp32-s3-devkitm-1. ESP32S3 · 240 MHz · 8MB · DIO.
In Arduino IDE 2, open Boards Manager, search "esp32" by Espressif and install it. Then go to Tools → Board and select "Unphone9" for the unPhone 9.
Pin Mappings
Complete pinout and GPIO mapping for unPhone 9
| Pin | Analog | Touch | PWM | Other |
|---|---|---|---|---|
| 1 | A0 | PWM | ||
| 2 | A1 | T1 | PWM | |
| 3 | PWM | SDA | ||
| 4 | PWM | SCL | ||
| 5 | A4 | T4 | PWM | |
| 6 | A5 | T5 | PWM | |
| 7 | A7 | T7 | PWM | |
| 8 | A2 | T2 | PWM | |
| 9 | A3 | T3 | PWM | |
| 12 | A11 | T11 | PWM | |
| 13 | A12 | T12 | PWM | LED_BUILTIN SS |
| 14 | A6 A13 | T6 T13 | PWM | |
| 15 | A8 A14 | T8 T14 | PWM | |
| 16 | A15 | PWM | ||
| 17 | A16 | PWM | ||
| 18 | A17 | PWM | ||
| 19 | A18 | PWM | ||
| 20 | A19 | PWM | ||
| 27 | A10 | T10 | PWM | |
| 33 | A9 | T9 | PWM | |
| 39 | PWM | SCK | ||
| 40 | PWM | MOSI | ||
| 41 | PWM | MISO | ||
| 43 | PWM | TX | ||
| 44 | PWM | RX |
Default Tools & Configuration
Build and upload settings for unPhone 9
| Setting | Value |
|---|---|
| Bootloader tool | esptool_py |
| Uploader tool | esptool_py |
| Network uploader tool | esp_ota |
| Bootloader address | 0x0 |
| Flash mode | dio |
| Boot mode | qio |
| PSRAM type | qspi |
| Maximum upload size | 8128 KB (8323072 bytes) |
| Maximum data size | 8512 KB (8716288 bytes) |
The unPhone 9 uses esptool_py for uploads , esp_ota for OTA updates, and esptool_py bootloader at 0x0.
Flash mode: dio | Boot mode: qio | PSRAM: qspi
Max sketch size: 8128 KB | Max data size: 8512 KB
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