Thanks for any help. AA
The Redboard is interchangeable codewise with the Uno R3, but the R3 does not have a Qwiic connector. You’ll need a Qwiic breadboard cable like this to make the I2C connection: Flexible Qwiic Cable - Breadboard Jumper (4-pin) - SparkFun Electronics
Did you overlook this note about the example code?
A Note on Examples 4 and 5: This library is shared with the SparkX Breakout Board using the same MMC5983MA chip. However, due to the tiny size of this Micro Breakout Board, SPI functionality is not available for the Qwiic Micro Magnetometer. The two SPI examples included with the Arduino Library are for use with the SparkX board only.
Thank you for the answers, much appreciated. I do have the cable you suggest, so I’ll use it to connect to the UNO’s pins. I did overlook the Note on Examples 4 and 5 at the end of Qwiic Micro Magnetometer - MMC5983MA Hookup Guide - SparkFun Learn . BTW, would you know of more examples on how to use the MMC5983MA?? Thanks again!!
I recommend to start with the existing examples. Make sure that they run correctly, that you understand the resulting output and what the example code is doing, line by line.
Keep in mind that you can change the example code to experiment with other sensor settings.
At the moment I am doing the I2C examples in Arduino’s IDE. However, I see Example7-I2c_Sensor_Offset in the Arduino IDE but I do not see it in the link Qwiic Micro Magnetometer - MMC5983MA Hookup Guide - SparkFun Learn . What is this example??
If I understand correctly, both the A5 pin and the dedicated SCL pin are directly connected, so either can be used for the I2C clock signal. Similarly for A4 and SDA. Is there any advantage in using A5 over SCL pin and or A4 over SDA pin, or vice versa??
the A5 pin and the dedicated SCL pin are directly connected
Both connect to the same pin on the MCU. Same for A4 and SDA. It does not matter which connection you use.
