USART on Trainer Port

Ok I remember being told not too long ago that the trainer port is actually a USART, if this is the case I plan to develope this into something useful. At this stage I would like to ask what would like to be seen out of trainer port USART functionality?

I have my own private goals which will be available on my own repo once it is setup, however I do want to contribute to the codebase so that another feature can be available.

One of my main goals for myself is two way communication, telemetry in, radio control information out (for things such as UHF radios, etc), would also allow for fairly easy implementation of control input as well, such as a joystick to offer a secondary analog interface.

Some of these ideas will require some simple external hardware of course, which I personally will maintain some information on for those interested, but for now the purpose of this thread is to ask what would be best for the codebase with traner port USART?

It is using the actual USART pins for the PPM output? I will probably have to add an option in UI to configure it between options then like PPM out, PPM IN, Bi-Directional USART .

Is the MCU 5v logic tollerant?

PhracturedBlue wrote:

MatCat wrote: It is using the actual USART pins for the PPM output? I will probably have to add an option in UI to configure it between options then like PPM out, PPM IN, Bi-Directional USART .

No we don't actually use the UART for that. It is enabled for debug output of printf when PPM is not selected though.

Is the MCU 5v logic tollerant?

I don't believe so. You'd need to check the specs though.

Ok I see, yeah I have been studying the datahseet a bit on it, not really an issue it's easy to do logic level conversion on the other piece of hardware anyway.

I will experiment when I get home tonight, oh on the trainer port itself which base of the connector is what (TX,RX, etc etc)?

I would like to let the trainer port connect to a bluetooth module, then 3rd parties can develop android/ios/wp8 apps via the bluetooth.