Type GET VTX or SET VTX in the CLI tab and you will see all the current VTX settings. Starting from the Betaflight 3.3.0, you can control the VTX settings by issuing the CLI commands. Read the guide on setting up the VTX Tables. Note: Starting from Betaflight 4.1.0, you will need to set up the VTX Tables. Save and reboot and you are done setting up the SmartAudio. In our case we have connected the SmartAudio control wite to the TX4 pad of the UART4.
The only thing you need to set is sellect the type of the Peripherals you have connected (TBS SmartAudio) in the Ports tab. You can even use any SoftSerial port for controlling SmartAudio.
#Setting up farsky telemitry free
Of course you can connect to any free TX of any available UART. Green wire from the VTX is SmartAudio wire connected to the TX4 on the Flight Controller.
#Setting up farsky telemitry license
However I have never seen the mentioned logo on any product using SmartAudio and never heared about someone paying the License Fee to TBS.Īs already mentioned, in order to be able to use SmartAudio features you need to connect the VTX SmartAudio pin to the TX pin of any UART port on the FC.īelow is an example of the Eachine VTX03S connected to the Matek F405-AIO FC. Participants will receive an authorization logo that can be placed on productĪnd packaging. TBS (Team Black Sheep) has opened the SmartAudio standard but requests a license fee if you plan to make More detailed protocol specification can be found here: Licensing So we can get the idea what can be controlled – Channels, Power level and Operating modes (pit mode, lock/unlock). SmartAudio protocol commands are GET SETTINGS, SET POWER, SET CHANNEL, SET FREQUENCY and SET OPERATION MODE (SmartAudio V2 only). The VTX only sends data if requested by the host. Once the command is sent the host defines the SmartAudio pin as input and the VTX will answer according to the received command. If the host want to talk to the VTX, he defines the SmartAudio pin as output and start sending a command. In Idle mode both host (FC) and VTX define the SmartAudio pin as input. SmartAudio uses single wire half duplex communication based on UART. So you can use SmartAudio with any receiver. Betaflight OSD SmartAudio control works with any receiver.
For LUA script to work, you need the FrSky receiver with SmartPort telemetry working. SmartAudio will work via CLI commands, Betaflight OSD and LUA scripts. To use SmartAudio you need to connect the VTX SmartAudio pin to the TX pin of any UART port on the FC. Later SmartAudio got separate dedicated input pin in the VTX, but the word Audio remained in the name.īetaflight firmware has ability to control the VTX parameters via SmartAudio. It is called Smart Audio because primarily it was intended to share the Audio signal input of the VTX together with the control line from the Flight controller. SmartAudio has been invented by TBS in 2015. SmartAudio is a communication protocol between the FC (Flight Controller) and VTX (Video transmitter).
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