Dear researchers,

I am starting in the Raspberry Pi and Arduino world. I am doing my masters in soil science and I was wondering if I can use (or construct) a cheap sensor with one of these devices to detect Cd (or Zn) in agricultural soils. There is a new EU regulation regarding Cd in cacao based products and the Colombian cacao farmers do not have access to a XRF and rarely made a soil test.

Is it a waste of time?

Best regards,

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