Interface to an Adafruit data logger -- MISO/MoSi/SDA/SCL?

Development Boards Artemis
1

I’m building a doppler radar (CDM324) processor that uses an Artemis for the data acquisition/processing (via pin A3) with an Adafruit data logger with an RTC for storing the data – for each “cycle” I only store the peak frequencies and time, so it’s only about 50 bytes every few minutes – not a lot of data. (https://www.adafruit.com/product/1141). The Artemis is accessing the RTC data (pin A5) and the amplified radar doppler data (amplifier output is just short of 3v peak on A3). The problem is that the Artemis doesn’t “see” the SD card. The Arduino/Adafruit shields use the ICSP pin block for things like SD card communication (Mega, for example, uses either pins 50/52 for SDA/SCL or the ICSP block. Artemis doesn’t have an ICSP, so I tried using jumper wires from the ICSP to 50/52/53/Ground (5v is already on the Adafruit – no need tp jump it) – no joy.

Any suggestions on how to get Artemis to communicate with the Adafruit data logger?

TNX

2

You are using Adafruit’s datalogging library, right? If it is compatible with Apollo3 (it is possible that it might not be, but it will be if they stick to pure Arduino API functions) you may need to do a little digging to see what pins it is trying to use.