i am quite new in Arduino world. I want to make my project work but i have few issues.
- Arduino Mega rev3
- GSM Shield (http://arduino.cc/en/Main/ArduinoGSMShield) with integrated antena
- Micro SD card Catalex
- Load cell with HX711 controler in between.
- Sensor for temp. and hum.
Everythings works, except SD Card ..
if i try official library for SD .. initialization failed. Things to check ... etc ...
i connected connectors first:
** MOSI - pin 11 ** MISO - pin 12 ** CLK - pin 13 ** CS - 5 that is connected on gsm shield and try pinMode(10, OUTPUT); and any possilbe combination from 53 to xy number but no effect
then i tried: to change RXPIN to any on avaiable... RX: 10, 11, 12, 13, 14, 15, 50, 51, 52, 53, A8 (62), A9 (63), A10 (64), A11 (65), A12 (66), A13 (67), A14 (68), A15 (69).
i tried from A8 to A15 but no luck (even GSM didn't connect) ... ofcoarse i did bridge pins 2 and selected pin instead of pin 10.
so i tried.. to connect mega + sd card.. works perfect on pins 11-13 and 50-53... no problems here
i know that both GSM and SD uses pin 10 .. but that officaly dont go ...
basicly i tried everything posted on any forum.. which could bring me a solution...but no luck.. card is not inicialized..
anyone with any idea?
would save my a lot of nurves and time