Powering on the transmitter while USB is connected

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farshield
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Powering on the transmitter while USB is connected

Post by farshield » Sun Oct 24, 2021 9:17 am

For the transmitters that support USB charging, you can't power them on while USB is connected.

Since I'm planning to use the controller only for simulators, it's a bit annoying having to plug out and plug back in the USB cable every time I want to power on the device.

Is this a hardware limitation? Can I get through this limitation by modifying the firmware? If not, what hardware modifications would be required and what are the trade-offs.

Thank you for your time :)


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Kilrah
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Re: Powering on the transmitter while USB is connected

Post by Kilrah » Sun Oct 24, 2021 9:25 pm

The hardware is designed so that when the USB is plugged with power off the controller boots in DFU/firmware flashing mode.

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jhsa
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Re: Powering on the transmitter while USB is connected

Post by jhsa » Mon Oct 25, 2021 3:15 pm

Is it not possible to make a simulator module and just turn the power to the RF module OFF?
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Kilrah
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Re: Powering on the transmitter while USB is connected

Post by Kilrah » Mon Oct 25, 2021 4:22 pm

Yeah but you wouldn't get the advantages of USB (faster refresh, more channels, no extra interface needed) then...

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jhsa
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Re: RE: Re: Powering on the transmitter while USB is connected

Post by jhsa » Wed Oct 27, 2021 4:51 am

Kilrah wrote:Yeah but you wouldn't get the advantages of USB (faster refresh, more channels, no extra interface needed) then...
Sorry, I meant to say "Simulator Model" not module.. :(

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Kilrah
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Re: Powering on the transmitter while USB is connected

Post by Kilrah » Wed Oct 27, 2021 7:59 am

That won't change the fact that the radio can't turn on if the USB cable is plugged in. I guess you could just never turn it off...

farshield
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Re: Powering on the transmitter while USB is connected

Post by farshield » Wed Oct 27, 2021 8:23 am

Too bad it's not possible, I'll just keep it powered on for now. This model I currently use (Radiomaster T8) doesn't vibrate when inactive so it's less annoying.

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Kilrah
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Re: Powering on the transmitter while USB is connected

Post by Kilrah » Wed Oct 27, 2021 8:51 am

You can set the inactivity timeout to 0 to disable it.


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