The Vortex H743 is a flight controller for builders who need to plan several interfaces in one aircraft. It combines seven UARTs, I2C, CAN, multiple outputs and microSD logging in a 30.5mm mounting format. Its appeal is the connection plan it can support, provided the selected firmware and board revision match the project.
In this guide: specifications · Start with an interface map · Distinguish power from voltage sensing · Board revision and logs belong in your build record · FAQ
OddityRC Vortex H743 Flight Controller at a glance
| Item | Listed detail |
|---|---|
| MCU | STM32H743VIH6, 480MHz |
| Memory | 1MB RAM / 2MB flash |
| Interfaces | 7 UARTs, 2 I2C, 1 CAN |
| Storage | MicroSD socket |
| Main VBAT input | 6–36V, listed as 2–8S LiPo |
| Regulated output | 5V 2A continuous; maximum 3A |
| Mounting / dimensions | 30.5 × 30.5mm / 37 × 38mm |
Start with an interface map
Write down the receiver, GPS, video link and any sensors before assigning pads. A map makes it clear which connections are occupied and which are left for a later addition. The H743 page lists UARTs 1, 2, 3, 4, 6, 7 and 8; their availability in your project depends on the complete wiring and firmware configuration.
The board also lists 13 PWM outputs including the LED pad, two camera inputs and a CAN connection. Those are hardware resources to evaluate against a specific firmware configuration. They do not mean every function can be assigned arbitrarily or that every peripheral will work without driver and protocol support.
Distinguish power from voltage sensing
The main VBAT input is listed at 6–36V. A separate Vbat2 sensing pad is listed up to 69V. These are different connections with different functions: the higher sensing figure is not permission to feed 69V into the controller’s main power input.
The product also states that no current sensor is built in. Plan current measurement through suitable external hardware and the supported FC connection. A separate USB bench meter such as PM90 does not automatically become a flight-controller current sensor simply because both devices can measure electrical data.
Board revision and logs belong in your build record
V1.0 lists MPU6000 and ICM20602 IMUs; V1.5 lists MPU6000 and ICM42605. Record the actual board revision before downloading settings or diagnosing a difference between two builds. The page lists MATEKH743 firmware targets for ArduPilot, Betaflight and INAV; verify the appropriate current instructions for your board.
MicroSD storage is useful to include in an investigation plan: save a configuration record alongside the logs so the data can be tied to the wiring and firmware used. Diagnose the complete installation rather than treating the processor name as a measured improvement in flight quality.
Before you choose
- Map every peripheral to its interface and supply rail.
- Identify the board revision and correct firmware target.
- Check main supply voltage separately from voltage-sense inputs.
Frequently asked questions
Does H743 include a current sensor?
No. The current product page explicitly says there is no built-in current sensor.
Can I power the FC from a 12S battery because Vbat2 supports 69V?
The main supply is listed at 6–36V. The Vbat2 figure describes a sensing input, not the main power connection.
Does the lowest product price buy the flight controller?
The listing also includes a microSD-card-only option. Select H743 FC or the FC-plus-card variant to check the intended item.
Explore the configuration
View OddityRC Vortex H743 Flight Controller options and current specifications. Select the exact variant, then check the remaining parts of your build against its requirements.
Sources and related reading
Product details checked on 30 October 2026: OddityRC product listing. Read the related product guide, or browse Last update for the full article archive.
