The BLITZ Wing H743 is a flight controller produced by [iFlight](https://shop.iflight.com/electronics-cat27/BLITZ-Wing-H743-Flight-Controller-Pro2174).
## Features
- MCU - STM32H743 32-bit processor running at 480 MHz
RC input is configured on the (UART2_RX/UART2_TX) pins which forms part of the DJI connector. It supports all serial RC protocols.
## OSD Support
The BLITZ Wing H743 supports OSD using OSD_TYPE 1 (MAX7456 driver). Simultaneously, DisplayPort HD OSD is enabled by default and available on the HD VTX connector.
## PWM Output
The BLITZ Wing H743 has 13 PWM outputs. The first 8 outputs support bi-directional DShot and DShot, as well as all PWM types. Outputs 9-10 support DShot, as well as all PWM types and outputs 11-12 only support PWM.
The PWM are in in five groups:
- PWM 1-2 in group1
- PWM 3-6 in group2
- PWM 7-10 in group3
- PWM 11-12 in group4
- PWM 13 in group5
Channels within the same group need to use the same output rate. If
any channel in a group uses DShot then all channels in the group need
to use DShot.
## Video Power Control
The 9V video power can be turned off/on using GPIO 81 which is already assigned by default to RELAY2. This relay can be controlled either from the GCS or using a transmitter channel (See :ref:`common-auxiliary-functions`)
The camera output can be switched using GPIO 82 which is already assigned by default to RELAY3. This relay can be controlled either from the GCS or using a transmitter channel (See :ref:`common-auxiliary-functions`)
