docs/boards/MatekF722-SE.md

   1 # Board - Matek F722-SE
   2
   3 Full details on the MATEKSYS F722-SE can be found on the Matek Website: [mateksys.com/?portfolio=f722-se](http://www.mateksys.com/?portfolio=f722-se). INAV Target: `MATEKF722SE`
   4
   5 ## Hardware Specs
   6
   7 * *Mass:* ~10g
   8 * *PCB Size:* 36x46mm
   9   * 30x30mm Hole pattern (M4 size, M3 size with rubber isolators)
  10
  11 ### FC Specs
  12
  13 * Processors and Sensors
  14   * *MCU:* STM32F722RET6
  15   * *IMU:* MPU6000(Gyro1) & ICM20602(Gyro2) connected via SPI1
  16   * *Baro:* BMP280 (connected via I2C1)
  17   * *OSD:* BetaFlight OSD (AT7456E connected via SPI2)
  18 * *Blackbox:* MicroSD card slot (connected via SPI3)
  19 * 5 UARTs
  20 * 8 PWM/Dshot outputs
  21 * 2 PINIO definition (VTX power switcher/user1 and 2 camera switcher/user2)
  22
  23 ### Integrated PDB Specs
  24
  25 * *Input:* 6-36v (2-8S LiPo) w/TVS protection
  26 * *ESC Pads:* Rated 4x30A per ESC pad set (4x46A burst)
  27 * Voltage Regulators:
  28   * *5v BEC:* 2A continuous load (3A burst)
  29   * *3.3v LDO:* max load: 200mA
  30 * Power Sense:
  31   * *Current Sensor:* Rated for 184A (*Suggested scale value `179`*)
  32   * *Voltage Sensor:* 1:10 signal output ratio (*Suggested scale value `110`*)
  33
  34 ## Status LEDs
  35
  36 |       LED      | Color |                                         Color Codes                                                       |
  37 |---------------:|-------|:----------------------------------------------------------------------------------------------------------|
  38 | FC Status      | Blue  | **Unlit:** USB disconnected and disarmed, <br> **Lit:** USB disconnected and armed, <br> **Flashing:** USB connected and disarmed, <br> **5x Rapid Flash then Flashing:** USB connected and arming command prevented |
  39 | Accelerometer  | Green | Accelerometer status (Lit: active, Unlit: inactive)                                                       |
  40 | 3v3 Status     | Red   | Red: active, Unlit: inactive                                                                              |
  41
  42 ## Pinout
  43
  44 Pads are organised into two large banks of pads on left and right sides of board with a couple sets of pads on the underside of the board and ESC related connections near the board corners.
  45
  46 ```
  47           __________
  48          /  U    U  \
  49 /-----------------------------\
  50 |oE                         Eo|
  51 |SC                         SC|
  52 |                             |
  53 | P                        P  |
  54 | A                        A  |
  55 | D                        D  |
  56 | S                        S  |
  57 |                             |
  58 |ES                         ES|
  59 |oC                         Co|
  60 \------------[USB]------------/
  61 ```
  62
  63
  64 | Pad Silkscreen Label |   Function    |                                                 Notes                                          |
  65 |---------------------:|---------------|:-----------------------------------------------------------------------------------------------|
  66 | `+ / -`              | Battery In    | 6-30vDC LiPo Power input (*Battery +/- and 4-in-1 ESC +/- pads*)                               |
  67 | `S1-S8`              | ESC Out       | (*1-4 near ESC power connections, 5-8 on right side*) Supports PWM, Oneshot, Multishot, DSHOT  |
  68 | `GND, S1-S4`         | ESC Out       | (*Rear of board*) 4-in-1 ESC Out                                                               |
  69 | `VBT, GND`           | VBT Out       | VBAT power pad (*marked for VTX*), power ON/OFF can be switched via PINIO1(PC8)                |
  70 | `CURR`               | Current Sense | Current Sensor I/O pin (*output from onboard sensor or input from external sensor*)            |
  71 | `5V`                 |               | Out from internal 5v BEC (*rated 2A continuous, 3A burst*)                                     |
  72 | `3V3`                |               | Out from 3v3 regulator (*rated 200mA*)                                                         |
  73 | `4V5`                |               | Out from 4v4~4v8, 0.5A (*power is also supplied when connected via USB*)                       |
  74 | `G`                  | GND           |                                                                                                |
  75 | `LED`                | WS2812 Signal |                                                                                                |
  76 | `Bz-, 5V`            | Buzzer        |                                                                                                |
  77 | `CL, DA`             | I2C           | I2C connection marked for a magnetometer but could be used for whatever                        |
  78 | `VTX`                | VTX           | VTX: Video out                                                                                 |
  79 | `C1/C2`              | Camera        | C1: camera-1 IN,  C1: camera-2 IN,  2 camera image can be switched via PINIO2(PC9)             |
  80 | `RX1, TX1`           | UART1         |                                                                                                |
  81 | `TX2`                | UART2-TX      |                                                                                                |
  82 | `RX2`                | UART2-RX      | RX connection for Spektrum DSMX or DSM2, FlySky iBUS, or PPM (*Disable `UART2` for PPM*)       |
  83 | `RX3, TX3`           | UART3         | TX3 can be used for VTX control                                                                |
  84 | `RX4, TX4`           | UART4         | RX4 pin  `PA1` can be used for camera control(PWM)                                             |
  85 | `TX6`                | UART6-TX      |                                                                                                |
  86 | `RX6`                | UART6-RX      | (*One per board corner*) Duplicates of RX6 pad for ESC Telemetry                               |
  87 | `Rssi`               | RSSI          | FrSky RSSI input from RX (*Rear of board*)                                                     |
  88 | `PA4 `               | ADC/DAC       | Airspeed_ADC_PIN (*Rear of board*)                                                            |
  89 | `D+, D-. VBus`       | USB pins      | (*Rear of board*)                                                                              |
  90
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