AIOPIO board

[Oakie]

Follows is advice for the I/O board any one with expereince or just advice would be appreciated.

SJ4 and SJ5 are around the wrong way.

SJ4 is for 5v
SJ5 is for tx1 to frsky telemetry not the other way as in the schematic.

GND pins are common across the board
all 5v pins are common to the 5v EXTERNAL INPUT.

To power the board (and gps/3dr etc) from the crius you have to solder SJ4. NOT SJ5.
solder pads not the pins on the side
So S2 is actually the top pin headers not bottom.
Ok so I replaced the original transistor, MMBT3904LT1G, with a BC817-25(10 for a whole $1.95 at jaycar) as highlighted in the picture below.


Plugged it back into my Crius, checked the voltage between SIG and GND on right 3 headers. Looked good so into the Rx port it went.

Boom. All telemetry data on my FLD-02.

I don';t know why they are selling this board saying it can do Frsky telemetry by just soldering a couple of pads together(ignoring the schematic and finding the correct 1!)
because it can';t without other modification.
To use A1 A2 and A3 through the onboard ULN2003 the SJ1-3 pads must be soldered. If not only A4-A7 are going through and will give an output on the headers.
#define COPTER_LED_1 AN14       // Motor or Aux LED
#define COPTER_LED_2 AN15       // Motor LED
#define COPTER_LED_3 AN6      // Motor or GPS LED
#define COPTER_LED_4 AN7      // Motor LED
#define COPTER_LED_5 AN4     // Motor LED
#define COPTER_LED_6 AN3      // Motor LED
#define COPTER_LED_7 AN2      // Motor LED
#define COPTER_LED_8 AN1      // Motor LED



I got my buzzer working as well using pin 46

my config h is like this.

approx line 92
#define PIEZO_PIN 46

approx line 290
#elif CONFIG_HAL_BOARD == HAL_BOARD_MPNG
#define COPTER_LED_1 AN2 // Motor or Aux LED
#define COPTER_LED_2 AN3 // Motor LED
#define COPTER_LED_3 AN4 // Motor or GPS LED
#define COPTER_LED_4 AN7 // Motor LED
#define COPTER_LED_5 -1 // Motor LED
#define COPTER_LED_6 -1 // Motor LED
#define COPTER_LED_7 -1 // Motor LED
#define COPTER_LED_8 -1 // Motor LED

My defines.h file

approx line 373
#define AN5 46
// #define PIEZO_PIN 32 //Last pin on the back ADC connector
#define PIEZO_PIN 46

http://www.multi-rotor.co.uk/index.php?action=dlattach;topic=9165.0;attach=11621;image