I'm trying to connect two BMP180s to an arduino uno by using a multiplexer.
Here is the code that a guy has written before: I imported SFE_BMP180 library but didn't do anything with the "typedef.h" thing.
I'm getting "Data does not name a type" error at the line 9. How can I solve this problem?
#include <SFE_BMP180.h> #include <Wire.h> #include "typedef.h" #define SELECT_PIN 9 #define ALTITUDE 510.0 #define P1_ACTIVE digitalWrite(SELECT_PIN,HIGH); //delay(10); #define P2_ACTIVE digitalWrite(SELECT_PIN,LOW); //delay(10); SFE_BMP180 bmp1,bmp2; boolean readSensors(Data *data1, Data *data2); Data newData(char id) { Data d ; d._id = id ; return d ; } void setup() { boolean failed = false ; pinMode(SELECT_PIN, OUTPUT); Serial.begin(9600); P1_ACTIVE if(bmp1.begin()){ Serial.println("BMP #1 init success."); } else failed = true ; P2_ACTIVE if(bmp2.begin()){ Serial.println("BMP #2 init success."); } else failed = true ; if(failed){ Serial.println("Error in BMP180 init."); while (1); } } void loop() { Data d1 = newData('1'); Data d2 = newData('2'); boolean read = readSensors(&d1,&d2); if(read){ /* print the value to serial terminal */ ... 
