Mitch781 wrote:
...
I personnaly own a V911 and recently bought a v959 after reading all this topic i decided to try to get all fnctions of my v959 with the t9x radio.
so i unsoldered the a7105 tx module from my v911 tx, flashed one arduino uno with rc-ppm2spi.hex using avrdude by usb (keeping bootloader in)
Is it really an a7105 tx module with SPI interface, do you got the right pinout from it ?
Why using (leaving) the arduino bootloader in it ?
Got flashed the right fusebits ?
If you used an usbasp, there might be problems with the efuse ...
I tried it first with an arduino pro mini (5V / 16MHz) and with efuse = 0xFD I got an error,
but with efuse = 0x05 it worked right.
But I tooked the a7105 tx module from my v949 quad ...
Mitch781 wrote:
today i made a breadboard directly plugged on arduino uno and wanted to use trainer port of my t9x to enter ppm signal in arduino
when i tried to bind my v911, the led wltoys lights on breadboard but nothing else appear, led of v911 keep blinking slowly and i have no function.
You've build an arduino shield ?
Used the bind button within the schematics to bind?
Mitch781 wrote:
I use t9x v2 with standard software and trainer port, i checked trainer port gives a ppm signal of 8 channels at oscilloscope?
The 9X has only 8 channels, so this is right.
But with the standard software and unmodified hardware you run into some problems here I think, because the trainer port doesn't deliver an clean ppm signal without resistor mod.
Why you don't "upgrade" to better software ?
Ah, and if I'm not wrong, the ppm signal must be positive ...
With er9x you can change that within the software for every model ...