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ctzsnooze 24/11/2017
Lua script over Smart Port requires the 'uninverted' signal ('P' pad on R-XSR etc) to Tx on UART6. Don't change the telemetry CLI defaults, they are correct, ie set tlm_switch = OFF set tlm_inverted = OFF set tlm_halfduplex = ON set pid_in_tlm = OFF If your camera/VTx need 5V and you have an external source of 5V, setting the solder blob to 5V and inputting 5V at VCC input, you will get 5V on all 5V points, and the 5V out to the camera at the OSD connection will be filtered, but you will not get LiPo voltage monitoring in the OSD. If you leave the solder blob on 5V but connect LiPo voltage to VCC, you will gain OSD LiPo monitoring, but you will send filtered LiPo out to the camera, and all points marked 5V will actually be at LiPo power, not 5V!!! The safest thing is to change the solder blob to V and connect LiPo to VCC. Then all 5V points will be at 5V and LiPo voltage will be monitored, but beware that the filtered voltage out to the camera will be LiPo voltage, if your camera/VTx is 5V you'll fry it, pull 5V from somewhere else. Note also that mounting holes are 2.5mm but can be easily drilled out to 3.0mm.
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  • TrevorBrasch Thanks for the great comment. Your advice is very helpful. I checked your claim that having the solder blob on 5V and feeding LiPo voltage will cause LiPo voltage at all 5V points. My board may be a newer version or the manufacturer may have changed it from yours. I checked with a volt meter. 3S LiPo on VCC. Blob on 5V. I measure 5V at all points labelled as 5V.

    Reply 01/01/2018
  • ikaniss The same to me, Blob on 5v= I get 5v in all points too

    Reply 02/02/2018
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