Arduino mega

Submitted by zeno on Fri, 30/01/2015 - 07:32

I'm doing a thermostat with display connected to the system emoncms.

as the library of the monitor is very heavy U8glib have had to move from a standalone Arduino Mega.

On standalone Arduino RF12 radio works perfectly

irq digital pin 2 (pin 4 ATMEGA328)
sck digital pin 13 (pin 19 ATMEGA328)
miso digital pin 12 (pin 18 ATMEGA328)
mosi digital pin 11 (pin 17 ATMEGA328)
ss digital pin 10 (pin 16 ATMEGA328)

I disconnected all the pins and I connected only to the radio and the sketch Rx_SimpleRFM12B (https://github.com/openenergymonitor/RFM12B_Simple/blob/master/Rx_Simple...). I changed the frequency at RF12_868MHZ

Arduino mega does not connect to the radio !!!

My configuratio:

3v (capacitor between vcc and gnd)
gnd
RFM_IRQ       Pin 2
SS/SEL       Pin 53
MOSI/SDI   Pin 51
MISO/SDO   Pin 50
SCK       Pin 52

pins are defined in rf12.cpp library jeelib

#define SPI_SS 53 // PB0, pin 19
#define SPI_MOSI 51 // PB2, pin 21
#define SPI_MISO 50 // PB3, pin 22
#define SPI_SCK 52 // PB1, pin 20

I tried to insert the resistors on pins but the radio does not connect.

Thank

Zeno