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Posted by RocketMouse | Dec 10, 2018 @ 03:28 PM | 6,385 Views




Pan - PWM3
Tilt - PWM4
Home button to PWM5. NOT working
Select button to PWM6. NOT working
Display to I2C port
Bluetooth to UART1
Local GPS to UART2


1. Short bootloader pins (Boot headers (11) - check pdf from link above), connect Usb.
2. Using Betaflight or Cleanflight configurator in Chrome upload SPRACINGF3_**.hex FW from here


1. Download and install Configurator from here
2. Run Configurator from Chrome Apps. Select Com port, select Bauds 115200, press Connect. Press CLI ENTER. Now all parameters should get loaded. Set in settings PROTOCOL to Autodect, and set BAUDRATE same as your bluetooth or radiomodem speed. I use 57600 for Mavlink. Press SAVE. To connect again to Configurator set Bauds to 57600 at the top.

Tip: Uart1 is in parallel with Usb, and it means telemetry is not coming in when Usb connected. You can connect a Bluetooth module to uart1. Usb is only useful for flashing new versions. You can, may and should configure/tune the tracker «wirelessly».

If not set by default, run the following command in CLI mode to be able to use the local gps function through serial port 1 (UART2):
serial 1 2 38400 38400 0 115200

Other...Continue Reading
Posted by RocketMouse | Nov 06, 2018 @ 08:32 AM | 7,548 Views


no soft serial in AP yet...sorry

The F4 processors have a dedicated VCP port for USB, not like the previous generation boards which had a USB-serial chip feeding a UART on the uP.
The Omnibus F4 boards pins out only UART1, 3, and 6, however, UART3 pins are shared with I2C (for external compass/airspeed) on the port for AP, I2C is enabled and UART3 disabled. It is possible to change the HWDEF and recompile to disable I2C and use UART3.


Omnibus F4 Pro V3
OMNIBUS F4 schematic

2 UARTs since UART3 is always used for I2C in Ardupilot firmware
Sport support does not really exist yet
rssi solder pad to PIN 0 on omnibusf4pro, can be used for either ana rssi, ana arspd or any other analog voltage function desired.

PWM5 and 6 are pwm outputs, functions is set by SERVO5 and 6 function param

F405 Wing
UARTn = SERIALn except for USART2 being used for RCInput, so SERIAL2 stays empty
RSSI pin voltage is 0-3.3 v
the SD card reader is very picky (I had also trouble with logging) They stated that only 50% of the cards work for no apparent reason
non-inverted s.port
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QLrs faq + info

Posted by RocketMouse | Dec 09, 2017 @ 03:32 PM | 12,971 Views
Flashing tips

QLRS FW supports E32-TTL-1W and E32-TTL-100 HW + similar 868 modules

Maximum range of this LRS has not been tested yet. You are welcome to be the first who will find this out.
QLRS supposed to provide better range than any other LRS that uses FSK modulation such as OpenLRS, ULRS etc.

Telemetry data is transmitted from UAV to ground station only! There is no full duplex link and it's not expected.

QLRS does not support full mavlink. The mavlink data is "converted" to some internal protocol, sent to the ground, and then mavlink message is resumed there.
Thus, the following messages (correctly the fields) that FC sends to QLRS are interpreted.
Then the same message is generated on the ground and they reach the software that displays the map, etc. etc.

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Why is this project not opensource?
Originally Posted by qczek
Sorry, but currently there is no any developer interested in development, so sharing code only to starts someones commercial kick starer is not what i want to do
When I decide to stop development and there will be some not fixed bugs, i will release source code, don't worry.
If you are interested in any particular piece of coding i can share it no problem...
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