as7421 problem

Question

I am trying to control the as7421 to read spectral data using python's smbus, but there is a problem that I can't change the value of LTF_EN on the enable bit 0x60, so I can't take spectral measurements, has anyone solved a similar problem, I'd appreciate it!

bidrohini · Accepted Answer

The problem may exist somewhere else other than the LTF_EN itself. I think it is better to verify the I2C address with an I2C scanner code.

primalfido · Answer

PON must be enabled before LTF_EN can be enabled. 
 Additionally there is a library here for Python that you can use which might be helpful: github.com/.../as7421

as7421 problem

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