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SparkFun Electronics will be closed on July 3rd, 2015 in observance of Independence Day. Any orders placed after 2:00pm MT on July 2nd will be shipped out after the weekend. Thanks!

mikeselectricstuff

Member Since: April 7, 2006

Country: United States

  • Fail on the TXEN - it should be driven by software when you know the transmit has finished instead of trying to guess with some nasty bodge using TXD. 485 can run anything from 9600 to 4Mbaud so you just can’t guess like that. Also no ground on the terminal block. Though 485 is differential, running it without a ground ref can be asking for trouble

  • This is the same sensor as in the Flir One, so IR resolution is the same. It’s possible it has different firmware, so may not support all the modes documented in the datasheet.

  • Although the Seek has higher pixel resolution, the noise is higher, and they peg the displayed temp range quite wide to hide the noise, making it less sensitive to small heat changes than the Lepton. Note how Seek don’t publish a spec for resolution. Lepton has a simple, documented interface, and all the processing is built in. They avoid the need for a shutter by clever processing based on the assumption that the scene is moving. You would need a shutter if the sensor is stationary, or you want to measure absolute temperature.

  • According to that PDF, the trademark expired in Dec 2013 - probably at least worth checking to see if it has been removed. Can the yellow holster be removed - could they just destroy those?

  • Should have used a gold finish for boards like this with bare contacts - silver tarnishes too easily.

  • Re. devboards, I think there is probably a good argument that they could be exempt as “A digital device used exclusively as industrial, commercial, or medical test equipment.”

  • A decoupling cap would have been nice…

  • I think the ‘minimium load’ spec in the datasheet means minimum resistance, which is slghtly confusing as it could be misinterpreted as the device requiring a load.
    If it meant minimum current load, they would also quote a maximum, which they don’t.

  • 1) Why not have a ‘surplus bulk parts’ section on the website?
    2) Ebay - plenty of people buying & selling bulk lots of components
    3) There are plenty of chip brokers, but chances are they all check ebay so option 2 with a sensible start price is probably at least as good an option.

  • Like Siftibles then…

No public wish lists :(