Dave Akerman used a Raspberry Pi and a webcam to transmit live images from near space. To accomplish this he used a standard high altitude balloon.
The live pictures it sent during its journey are believed to the highest ever photographs transmitted from an amateur device anywhere in the world.
From his website:
HAB (High Altitude Ballooning) is a growing hobby where enthusiasts use standard weather balloons to put small payloads typically 100g-1kg into “near space” at altitudes of around 30km or so, carrying a tracking device (so the balloon position is known throughout the flight) and usually some sensors (temperature, pressure etc) and often a video or stills camera storing to an SD card for later retrieval.
In the past he always used Arduino Mini Pro boards, because of their minimal size, weight and power requirements. While the Raspi doesn’t have any of these features, it does have a USB port that allows easy webcam connecting. This opened the way to have live images (SSDV) sent down.
A sign of things to come?