unPhone 9 Development Board Pinout and Technical Specifications
Code name: unphone9
unPhone 9 development board is based on esp32s3 microcontroller and uses xtensa architecture. This development board has a maximum CPU frequency of 240 MHz and a flash size of 8MB.
Features
- 48 digital IO pins
- 46 external interrupt pins
- 20 analog input pins
- 25 PWM pins
Connectivity
- WiFi: 802.11 b/g/n (2.4 GHz)
- Bluetooth: 5.0
- WiFi: 5.0
Technical specs
| Clock Speed | 240 MHz |
| Flash size | 8MB |
| Microcontroller | esp32s3 |
| Architecture | xtensa |
unPhone 9 Pins Mapping Arduino IDE
Below you can find the unPhone 9 pinout. This development board provides 48 digital IO pins, out of which 46 can be used as an external interrupt pins , 20 as analog input pins and 25 pins have Pulse-Width Modulation (PWM) .
| 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
| 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 B) |
| Maximum data size | 8512 Kb (8716288 B) |
The unPhone 9 development board by default uses esptool_py uploader tool, esp_ota network uploader tool for Over-the-air (OTA) uploads and esptool_py bootloader tool. The bootloader starts at address "0x0". Flash mode and boot mode for unPhone 9 development board by default is dio and qio respectively. The board uses qspi PSRAM type. When using Arduino IDE, the maximum sketch upload size is 8128 Kb (8323072 B) and maximum data size for variables is 8512 Kb (8716288 B).