Lumenier LUX Flight Controller
The Lux is a F3 flight controller from Lumenier. It has features like a built in 5v BEC, so you can wire your flight battery directly into the Flight Controller and not worry about using a step-down voltage converter. As well as an integrated FrSky RSSI Filter and support for BLHeli flashing via the flight controller. Finally, it has an SPI bus that connects the gyro and main F3 chip, which is faster than the l2c bus used on the naze, allowing even lower looptimes than ever seen before. This looks like a very promising flight controller for those who want to direct solder to the flight controller and also want the fastest possible performance with betaflight
If you want more flexibility than what the KISS FC can offer (things like LED controls, ESC flashing, OSD integration, black box logs etc…) then you should get a flight controller that runs the firmware known as Cleanflight. The Lumenier LUX flight controller is a great choice because it has all of the hardware features that are needed to take advantage of Cleanflight, Betaflight and Raceflight.
By now, you might be asking “what exactly is “Cleanflight, Betaflight and Raceflight?”. This is where things get confusing. With the KISS flight controller, the hardware, firmware and software are all made by the same company. On the other hand, with Cleanflight the hardware, firmware and software is all created independently. For example, The flight controller might be made by lumenier, the software for configuring it might be Cleanflight, but the firmware might be called Betaflight and come from a person in his garage. The reason for this is because it’s an open source platform, so everything is always changing and people can’t just stick with one system that works and keep improving it.
To understand things a bit more, here’s a history lesson. In the beginning of time, there was a crazy project called Multiwii that started out using sensors from Nintendo Wii remotes and Arduino micro controllers that made quadcopters stable enough to fly. Then people started making dedicated flight controllers that ran the Multiwii firmware. After a few years went by, there were a lots of evolving projects that started from Multiwii. One of those projects was called Baseflight. It was made to take advantage of modern 32bit processors instead of the traditional 8bit processors found in Arduino hardware. Baseflight was great, but the code was messy and unorganized. Thats when the Cleanflight firmware and configuration software was created.
Cleanflight is still the most popular firmware today for open source flight controllers, but a lot of people immediately flash their boards with Betaflight to get even greater performance. The Betaflight firmware still uses the Cleanflight configurator software, but the PID loops are better. Some like Betaflight even more than the proprietary firmware found on KISS flight controllers, but that subject is debatable. If you want to be on the cutting edge, there’s an even newer Cleanflight based firmware called Raceflight, but I won’t get into that because it’s not something that you should even be worrying about right now
Hardware inversion for SBUS and Smartport
3 available hardware serial ports (UART), doesn't affect USB interface connection
High Speed SPI 8kHz Gyro (MPU6500)
MPU interrupt connected to F3, allowing the F3 to know immediately when fresh data is available
Dedicated Boot button for easy firmware flashing
Reinforced solder pads for trouble-free direct soldering.
Input voltage 6v to 24v. Power the board directly from flight pack up to 6S (on 'BAT' pad only!).
VIN + VBAT merged - A single wire to power the board will provide voltage input and Telemetry/OSD voltage data.
Filtered voltage output - output 5v 1A (and 3.3v where applicable) to power peripherals such as GPS, RX, BLACKBOX, OSD. 5v/3.3v RX selectable.
Good things about the LUX
Overall great quality flight controller board, Very well thought out, very well laid out. It's very pleasant to install my electronics on it and not having to worry about too much where the cabling goes.
RX Pins and Solder bridges
very clever Radio receiver type jumper (between PPM and Serial - SBUS), you can just hook your RX up to the dedicated 3 pins on the board (RX signal, VCC and GND) then you are good to go.
You can select which type of receiver you want to run on the solder bridge on the back of the board. you can also select what voltage you want to power your RX, e.g. 5V or 3.3V by shorting the solder bridge.
Also this board powers the RX with USB meaning you can test your receiver without plugging in your LiPo battery, while your FC is connected to the computer via USB. It's a lot safer.
Other good things
The 4 motor pins are at the four corners, so it cleans up your build substantially
It has a bootloader button to simplify firmware flashing
It's using SPI Gyro so you can run 4Khz mode (250 looptime) even 8Khz mode (125 looptime