unPhone 8
unPhone 8 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 8
A development platform combining ESP32-S3 with cellular connectivity, suitable for remote communication projects.
Technical Specifications
Complete technical specification details for unPhone 8
Quick Setup
Copy-paste configs for unPhone 8 - auto‑generated from this board's exact hardware specs.
In Arduino IDE 2 select Unphone8 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 "Unphone8" for the unPhone 8.
Pin Mappings
Complete pinout and GPIO mapping for unPhone 8
| Pin | Analog | Touch | PWM | Other |
|---|---|---|---|---|
| 1 | A0 | PWM | SDA | |
| 2 | A1 | T1 | PWM | SCL |
| 3 | PWM | SS | ||
| 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 |
| 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 | |
| 36 | PWM | RX | ||
| 37 | PWM | TX | ||
| 38 | PWM | SCK | ||
| 39 | PWM | MOSI | ||
| 40 | PWM | MISO |
Default Tools & Configuration
Build and upload settings for unPhone 8
| 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 | 2368 KB (2424832 bytes) |
The unPhone 8 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: 2368 KB
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