You may notice some variation in the temperature reading. This is due to the DC/DC regulation using running at lower frequency (to spare power when really few current required by the project). At lower frequency, the voltage regulation is less efficient and 3V3 rail will be more noisy. | You may notice some variation in the temperature reading. This is due to the DC/DC regulation using running at lower frequency (to spare power when really few current required by the project). At lower frequency, the voltage regulation is less efficient and 3V3 rail will be more noisy. |