Found a much better use for the 2049 board - a simple, cheap weather forecast display...
This picture shows an Electric Imp device delivering a 4x4 pixel image to the 2049 board from a server on the west coast of the USA...
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The 4x4 pixel image itself is simply a debug image that proves that the system works.
The next step is to harvest weather data from the Met Office (Datapoint API) and have the server Agent convert this data into a series of animations for the 4x4 display to show.
By a weird coincidence the 2049 board is a perfect size for pairing up with an Electric imp dev board ("impee-april rev3"). That was totally unplanned!
The 2049 board uses about 60mA when running normal animations. According the the documentation, the Electric Imp module uses no more than 400mA at any time. So I can therefore simply bus the 2049 board and the EI board power rails together and it will always be within spec for operation from a standard USB2.0 cable.
NOTE: the piece of paper in the above photo is only there because I found it very difficult to meter the chot correctly without it. I guess the camera can't cope with point-light sources. *shrug*
This picture shows an Electric Imp device delivering a 4x4 pixel image to the 2049 board from a server on the west coast of the USA...
The 4x4 pixel image itself is simply a debug image that proves that the system works.
The next step is to harvest weather data from the Met Office (Datapoint API) and have the server Agent convert this data into a series of animations for the 4x4 display to show.
By a weird coincidence the 2049 board is a perfect size for pairing up with an Electric imp dev board ("impee-april rev3"). That was totally unplanned!
The 2049 board uses about 60mA when running normal animations. According the the documentation, the Electric Imp module uses no more than 400mA at any time. So I can therefore simply bus the 2049 board and the EI board power rails together and it will always be within spec for operation from a standard USB2.0 cable.
NOTE: the piece of paper in the above photo is only there because I found it very difficult to meter the chot correctly without it. I guess the camera can't cope with point-light sources. *shrug*