• Arduino SD library
• Arduino SPI library
• Arduino Wire library
• arduino-cli
• arduino:avr core
• avr-gcc
• CMake 3.11

For the recording_parser you'll also need Eigen 3.3.

Setup the arduino-cli environment.

arduino-cli config init
arduino-cli core update-index
arduino-cli core install arduino:avr
arduino-cli lib install SD

Note that this will create the directories ~/.arduino15 and ~/Arduino.

Check which serial port your Arduino is connected to.

arduino-cli board list

This next step will automatically fetch the Arduino-CMake-Toolchain, compile the code, and upload it to your Arduino Nano.

mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
make

# Replace /dev/ttyUSB0 with the correct port for your setup.
make upload-arduino_gravity_recorder SERIAL_PORT=/dev/ttyUSB0

To compile the recording_parser:

mkdir build-parser
cd build-parser
cmake -DCMAKE_BUILD_TYPE=Release ../recording_parser
make

To compile and run the tests:

mkdir build-test
cd build-test
cmake -DCMAKE_BUILD_TYPE=Release ../test
make
./tests

Apologies to all EE students for this ugly schematic.

The pins on the microSD card reader, from top to bottom, are:

• CS
• SCK
• MOSI
• MISO
• VCC
• GND

This should work with any of the commonly available microSD card readers, I do however think that the IMU has to be a Grove IMU 10DOF v2, otherwise you'll have to swap out the library used in the code.

The connections at the top right should go to the camera hotshoe where the black wire (GND) goes to the U-shaped bracket and the yellow wire (D2) goes to the center pin. See ISO 10330 for more details.