> For the complete documentation index, see [llms.txt](https://teravolt.gitbook.io/teravolt/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://teravolt.gitbook.io/teravolt/flight-controllers/aerof4/specifications.md).

# Specifications

<div data-full-width="true"><figure><img src="/files/HY0pYSo09krMzmMA8e0y" alt=""><figcaption></figcaption></figure></div>

| **Category**   | **Details**                                     |
| -------------- | ----------------------------------------------- |
| MCU            | STM32F405RGT6 (168 MHz, 1 MB Flash, 192 KB RAM) |
| PWM Outputs    | 4                                               |
| UART Ports     | 6                                               |
| I²C Ports      | 2 (I²C1, I²C2 shared)                           |
| SPI Ports      | 3 (SPI1, SPI2, SPI3)                            |
| Flash Memory   | 16 MB SPI Flash                                 |
| IMU Options    | MPU6000 or ICM-42688 (SPI1)                     |
| Barometer      | BMP280 (I²C1)                                   |
| OSD Chip       | MAX7456EUI+ (SPI3)                              |
| USB            | USB-C (Device mode only)                        |
| Power Supply   | 4.75 V–50 V input                               |
| Max VIN        | 50 V recommended, 55 V absolute max             |
| Connector Type | JST-SH 1.0 mm                                   |
| LEDs           | 1x Addressable LED Out 4 Onboard                |
| Buzzer         | 1 Out                                           |
| Voltage Sense  | PC1 (ADC via 4in1 ESC)                          |
| Current Sense  | PC0 (ADC via 4in1 ESC)                          |