Reaper

Arduino library and python utility to transfer files off an SD card using a Serial port. The main use case is recovering sensor data from a sealed data logger that does not have wifi or easy access to the SD card itself.

Install

1. install Arduino IDE 1.6.7
2. install SdFat-beta Arduino library
3. Install RTCZero library https://github.com/arduino-libraries/RTCZero
4. install Reaper Arduino library
5. make install

Loading Firmwmare

1. adjust port and paths to Arduino in Makefile
2. run make

make compile

The SKETCH_DIR and SKETCH env vars tell make where to find sketches and what sketch to use. For example to build a sketch in the sketches dir:

SKETCH_DIR=sketches SKETCH=bench make compile

Running

run interactively

sdreaper -p /dev/tty.usbmodem1421

list files on SD card

sdreaper -p /dev/tty.usbmodem1421 'ls'

copy file from SD card

sdreaper -p /dev/tty.usbmodem1421 'cp small.dat'

Sample test data

Mount SD card on Mac to copy sample files.

cd sample_data
SD_CARD=/Volumes/YOUR-CARD make

Empty Mac Trash and eject from finder. Not strictly necessary but if without these steps the annoying .Spotlightxxx files may not get removed from SD card.

sketches

Misc Programs used for development of Reaper. Some may become Reaper examples, some will get tossed.

3rd Party

• SdFat-beta - SD card access
• pycrc - generated CRC function C source code
• pyserial - Python serial communication

License