Arduino Mega + sensor shield 2

[epierre]

Hello,

I have tried to connect to the radio a Mega + shield, checked wiring numerous times...

I was on 3.3V, moved to 5V with compensation...

would there be a reason why a mega wouldn't work with mysensors?

[marceltrapman]

@epierre Look here: http://forum.mysensors.org/topic/66/unable-to-use-the-serialgateway-code/7
It looks like the pins are different.

[epierre]

ok so the post say this

pin D8-----------CE (chip enable in)
SS pin D53----------CSN (chip select in)
SCK pin D52----------SCK (SPI clock in)
MOSI pin D51----------SDI (SPI Data in)
MISO pin D50----------SDO (SPI data out)

Gateway gw(8, 53, INCLUSION_MODE_TIME, INCLUSION_MODE_PIN, 6, 5, 4);

For a sensor I would translate it to :

Sensor gw(8, 53);

right ? --> but the serial debug is deaf when I do this... any idea ?

[marceltrapman]

@epierre I'm sorry I have one but never used it.
So I would have to test that because I don't see any use for a mega as a sensor. I like them as small as possible

[epierre]

@marceltrapman me too, but here this will be my hoe monitor : light, sound, pressure, and polluants, I already have5 nodes on it.

[epierre]

I've found the SPI reference

51: MOSI       Blue
GND: GND       Black
52: SCK        Green
50: MISO       Violet
48: CE         Orange
49: CSN        Yellow
3V: VCC        Red


Sensor gw(48,49)

OR alternative

GND: GND
52: SCK
50: MISO
9: CE
49: CSN
3V: VCC
GND: GND

Sensor gw(9,49)

NOTE!! Most * problems with intermittent operation are because of electrical noise on the 3.3V Power supply. The MEGA is more of a problem with this. Solution: ADD bypass capacitors across GND and 3.3V ON the radio modules. One user said, "Just Solder a 100nF ceramic cap across the gnd and 3.3v pins direct on the nrf24l01+ modules!" Some have used a 1uF to 10uF capacitor.

[epierre]

ok this time I plugged myself on the 5V and it works !