Example using base64 encoding to send a image over cellular on a Raspberry Pi with Hologram.io

b64-cellular.py

from Hologram.HologramCloud import HologramCloud
import logging
import base64

#uncomment if you want to see debugging messages.
#not suggested for larger images
#logging.basicConfig(level=logging.DEBUG, format="%(levelname)s: %(message)s")

hologram = HologramCloud(dict(), authentication_type='totp', network='cellular')

b64 = base64.b64encode(open("raspi-img.jpg", "rb").read())

print len(b64)

hologram.network.connect()

send = hologram.sendMessage(b64, timeout=200)

print send

hologram.network.disconnect()