Unstable yes and no. At least, i would never trust too much a serial communication RS232 or else running with any internal or ceramic resonator. Worst if the final product maybe use in various ambient temperature.
For I2C... i never got issue even by running internal OSC... well as now
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
Thanks, mister_e!
Actually, I just want to use a PIC to communicate to one single I2C device. I won't have any external serial communication via a computer or something similar.
I wanted to make my circuit very small, so I wanted to get rid of any components that are not too crucial. My main concern is that if I don't use a crystal then I wouldn't be able to communicate accurately with the I2C device.
But that is good to hear that you haven't had any problems using the internal oscillator with the I2C device.
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