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Wireless Phoenix !
It was a daft idea but it works....
Disclamer:
If you buggger up your Pheonix dongle its not my fault ! There are two ways of doing this one way does not involve opening the dongle. (its at the bottom)
Phoenix goes wireless. A mad man called Ade planted a seed of an idea and it degenerated into a fully functional make life easy addition to the heli bits.
You will need an olde 35Mhz PPM reciver i used an FP-R115F and about half an hour. i will start with a bit of background.
Phoenix uses a composite PPM signal from the trainer outlet on the transmitter. This is a bunch of servo pulses one after another. This is the same signal that is recived by the reciver prior to the decode chip. so the evil idea that was planted came into being..... Lets connect the phoenix dongle to a reciver (in the right place).. A scope and 5 mins later the set of pulses had been identified.
In the case of the futaba reciver it was so easy it was obvious. Inside the RX there are two seperate PCB's one is the reciver one is the decoder. they are connected together with a three pin link. That is the only connections between the top and bottom PCB. This becomes obvious at this point. Power Ground and comp PPM.
Now as it turns out the ground is basicly the black wire on a servo or battery and can easly be proved. The power is the middle pin. this is a 3.3v feed to the reciever there is a regulator between the battery input and here. and the remaining pin is composite PPM and the futaba decoders take this signal exactly as it needs to be presented to phoenix.
So connections to the reciever are as follows (use a servo socket lead) Black to the ground side (battery black wire) on the servo conection jumper bank. Red 5V to the battery supply (battery Red wire) or center pin on the servo connection. White to the Composite PPM lead that goes between the two pcbs on the R115 its the pin closest to the servo connections (3.3v is in the middle and ground is the other end)
So now you have an extra wire coming out of your RX. Need to plug it into the Phoenix dongle !
Open it up..... there are two wires that enter the box one is from USB and one from TX. The lead from TX is a 2 core screened cable. You will need to peel the outer covering from this to expose teh conductors The screen and a red and white wire.
Connect a servo lead as follows. The black lead is the ground. This connects to the screen (bare copper) on the lead that goes to your TX. The White connects to the red lead (verify this it is the Tip of the TX plug). Then you need 5v. This comes from the USB lead. Its the red lead inside the 4 core screened cable. See pictures below.
http://i297.photobucket.com/albums/m...x/DSC_0967.jpg
http://i297.photobucket.com/albums/m...x/DSC_0969.jpg
Then theres the option for those not wising to delve into their dongle....
Same as above but you need only the Black and White lead from th RX connect these to a 3.5mm mono Jack socket. The white is the Tip the Black is the body. Plug the dongle in here and plug a battery into the reciver.
You's guys on 2.4 will have to wait a bit longer but it is dooable i need to design a bit of hardware to recover the olde signal from the new reciever.... its a bit diferent....
Disclamer:
If you buggger up your Pheonix dongle its not my fault ! There are two ways of doing this one way does not involve opening the dongle. (its at the bottom)
Phoenix goes wireless. A mad man called Ade planted a seed of an idea and it degenerated into a fully functional make life easy addition to the heli bits.
You will need an olde 35Mhz PPM reciver i used an FP-R115F and about half an hour. i will start with a bit of background.
Phoenix uses a composite PPM signal from the trainer outlet on the transmitter. This is a bunch of servo pulses one after another. This is the same signal that is recived by the reciver prior to the decode chip. so the evil idea that was planted came into being..... Lets connect the phoenix dongle to a reciver (in the right place).. A scope and 5 mins later the set of pulses had been identified.
In the case of the futaba reciver it was so easy it was obvious. Inside the RX there are two seperate PCB's one is the reciver one is the decoder. they are connected together with a three pin link. That is the only connections between the top and bottom PCB. This becomes obvious at this point. Power Ground and comp PPM.
Now as it turns out the ground is basicly the black wire on a servo or battery and can easly be proved. The power is the middle pin. this is a 3.3v feed to the reciever there is a regulator between the battery input and here. and the remaining pin is composite PPM and the futaba decoders take this signal exactly as it needs to be presented to phoenix.
So connections to the reciever are as follows (use a servo socket lead) Black to the ground side (battery black wire) on the servo conection jumper bank. Red 5V to the battery supply (battery Red wire) or center pin on the servo connection. White to the Composite PPM lead that goes between the two pcbs on the R115 its the pin closest to the servo connections (3.3v is in the middle and ground is the other end)
So now you have an extra wire coming out of your RX. Need to plug it into the Phoenix dongle !
Open it up..... there are two wires that enter the box one is from USB and one from TX. The lead from TX is a 2 core screened cable. You will need to peel the outer covering from this to expose teh conductors The screen and a red and white wire.
Connect a servo lead as follows. The black lead is the ground. This connects to the screen (bare copper) on the lead that goes to your TX. The White connects to the red lead (verify this it is the Tip of the TX plug). Then you need 5v. This comes from the USB lead. Its the red lead inside the 4 core screened cable. See pictures below.
http://i297.photobucket.com/albums/m...x/DSC_0967.jpg
http://i297.photobucket.com/albums/m...x/DSC_0969.jpg
Then theres the option for those not wising to delve into their dongle....
Same as above but you need only the Black and White lead from th RX connect these to a 3.5mm mono Jack socket. The white is the Tip the Black is the body. Plug the dongle in here and plug a battery into the reciver.
You's guys on 2.4 will have to wait a bit longer but it is dooable i need to design a bit of hardware to recover the olde signal from the new reciever.... its a bit diferent....
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