Activity › Forums › Questions & Troubleshooting › Hardware › [MAXI Automation] Analog IN and internal 5V supply deviation › Reply To: [MAXI Automation] Analog IN and internal 5V supply deviation
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Dear Friedl_AP,
When you need more precise measurement of 5V and 10V, please use internal INTERNAL2V56: a built-in 2.56V reference.
If you want to use precise external votlage, you can also use external votlage applied to the AREF pin (0 to 5V only).
BR
Jarda