Hi All, I am trying to get my spark to talk to the Adafruit LSM303 Accelerometer over I2C, I have them wired with 4K7 pullups and I have gone here [image] adafruit/Adafruit_LSM303 Adafruit_LSM303 - Driver for Adafruit's LSM303DLHC breakout for the files for the…

@Cliff , I ported the LSM303 library some time ago. It uses Adafruit’s unified sensor library. You can find the library files here . You will need to copy the LSM303 .cpp and .h files, as well as, the Sensor_Master .cpp and .h files to get everything to compile. You can use either of the LSM303 ex…

Thank you very much that is perfect I have also installed the Spark Dev and compiled from there as well so thanks. But (There had to be one :wink: ) I have the spark connected to my laptop via Com7 and breathing with the code flashed but I am seeing nothing on the Serial Monitor in Spark Dev or wi…

I add while(!Serial.available()) SPARK_WLAN_Loop(); to the code like so: void setup(void) { Serial.begin(9600); while(!Serial.available()) SPARK_WLAN_Loop(); Serial.println("Accelerometer Test"); Serial.println(""); /* Initialise the sensor */ if(!accel.begin()) { /* There was…

How do you confirm that your OS can see the Core? What OS are you running? If Windows, have you installed the driver mentioned here ? If you use the Spark Dev Serial Monitor, you have to type in a letter and send it with Enter To see if your keypress reaches the Core try to add this after your fi…

@Cliff , besides @ScruffR advice, you may also want to run this I2C scanner app to make sure your core sees the LSM303: [image] I2C Humidity Sensor General A while back, somebody pointed me to this, which I’ve used to debug I2C…

@peekay123 thanks for the link I have downloaded this into Spark Dev and again the verify says that it can’t find <Wire.H> line 28 which is again an Arduino file. Cliff.

I’ve copy pasted the code above and it compiled just fine. What is your code line 28? If you copied it all line 28 is a comment line. If you happened to uncomment #include "Wire.h" then don’t - the Wire object is already part of the Core standard firmware (included via application.h).

@ScruffR thanks for the quick reply I realised from the DOC’s that Wire.h is part of the spark build so I commented out and it’s building now and installed. Just don’t seem to be able to connect to my core at the moment so still playing…

@Cliff , have you read my post about driver install and confirmation if your Core is visible to the OS?

@ScruffR Yes I have intermittent connection with my core I would use the app to check things but I have a windows Phone so thats not going to work for me.

[SOLVED]AdaFruit_LSM303 errors

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[SOLVED]AdaFruit_LSM303 errors

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