2016-04-24, 10:59 AM
Use a USB serial ttl converter instead of the internal uart1 of the RPi 3. It's a known RPi 3 problem.
As you already recogniced, if there is enough processor usage (inspector) all things are fine. But if the processor change to lower speed (energy saving) the baudrate drops.
As you already recogniced, if there is enough processor usage (inspector) all things are fine. But if the processor change to lower speed (energy saving) the baudrate drops.