Hi,
This is my first time on here and thought I’d post a link to my latest ‘Weather Balloon Project’. The main electronics are for tracking the payload ‘capsule’ and operating the camera (servo, focus and shutter). This was achieved using a Picaxe 20x2 for the tracking side of things and a 18X for the camera control. The 20X2 basically takes the GPS date and converts it to ‘RTTY’ which is then transmitted back to a scanner on the ground which in turn sends the data to a PC so it can be read off. Because of the simple format of ‘RTTY’ its possible to transmit data well over 50 miles with only a 10mW transmitter, yes sounds crazy but it works. I did try using a standard ‘Pic’ to start with but found the ‘Picaxe’ so much easier to work with and a lot simpler to use.
Have a look at the pictures..
http://www.flickr.com/photos/52455043@N03/
Michael
This is my first time on here and thought I’d post a link to my latest ‘Weather Balloon Project’. The main electronics are for tracking the payload ‘capsule’ and operating the camera (servo, focus and shutter). This was achieved using a Picaxe 20x2 for the tracking side of things and a 18X for the camera control. The 20X2 basically takes the GPS date and converts it to ‘RTTY’ which is then transmitted back to a scanner on the ground which in turn sends the data to a PC so it can be read off. Because of the simple format of ‘RTTY’ its possible to transmit data well over 50 miles with only a 10mW transmitter, yes sounds crazy but it works. I did try using a standard ‘Pic’ to start with but found the ‘Picaxe’ so much easier to work with and a lot simpler to use.
Have a look at the pictures..
http://www.flickr.com/photos/52455043@N03/
Michael