Talk:Wishlist/Sensorbox

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Processor discussion

A

Users:hns

This is what has been thought of: a simple processor that still suppports A/D converters and USB. A good candidate appears to be http://ww1.microchip.com/downloads/en/DeviceDoc/41124c.pdf Cost is approx. 5 USD.

Using an ARM processor just to convert some samples per second into USB appears to be overkill to me. But the PIC is just one of the options to considered. A drawback appears that the ADC resolution is just 8 bit. This is quite coarse for some sensors. 12 bit wouldbe better.

So what we need:

  • single chip
  • supports USB and approx. 8 ADC channels without many external components
  • low power
  • readily available development tools
Personal tools

Processor discussion

A

Users:hns

This is what has been thought of: a simple processor that still suppports A/D converters and USB. A good candidate appears to be http://ww1.microchip.com/downloads/en/DeviceDoc/41124c.pdf Cost is approx. 5 USD.

Using an ARM processor just to convert some samples per second into USB appears to be overkill to me. But the PIC is just one of the options to considered. A drawback appears that the ADC resolution is just 8 bit. This is quite coarse for some sensors. 12 bit wouldbe better.

So what we need:

  • single chip
  • supports USB and approx. 8 ADC channels without many external components
  • low power
  • readily available development tools