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Posts Tagged ‘cdm324’

Tutorial, experiment and teardown of a 24GHz Doppler radar module

Tuesday, August 28th, 2018

Shahriar posted a detailed analysis of a CDM324 24GHz Doppler radar module from IC Station: Opening the module reveals a series of microwave PCB components and several active devices. A complete analysis of the module is presented. The unit is then measured and the impact of antenna impedance and power...

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Making the Electronics for a 24GHz doppler motion sensor

Tuesday, April 4th, 2017

Limpkin has a nice write-up on his tiny CDM324 Doppler speed sensor: You may recall the article I wrote a couple of years ago about a nearly identical Doppler sensor, the HB100. While the HB100 is using a 10.525GHz frequency, this new module uses 24.125GHz! This has the main advantage...

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Recent Comments

  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!
  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...
  • jose: Part removal described here is pure butchery, the cheapest hot air station will do a fast and clean job removing the QFP, heat air to...
  • Cody: Yes please