What do you use (or recommend) for hardware-level PWM on GPIO pins, via a Python interface?
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looks like the kind of thing; any others worth checking out?Thanks,
Daniele
Hardware-level PWM with a Python interface
Dec 25, 2018
1 Replies
On Tue, 25 Dec 2018 01:29:02 +0000, snipped-for-privacy@apple-juice.co.uk (D.M. Procida) declaimed the following:
It is "hardware TIMED" but not true "hardware" PWM -- I believe they are using hardware timer interrupts to toggle the GPIO for pulse width. It is not a "fire&forget" PWM circuit that runs without OS intervention.
Since the pigpio daemon runs as a kernel process, it doesn't undergo as much latency as doing the GPIO toggling from a user process via the deprecated sysfs
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the only latency is in the API commanding the daemon to perform some action.
Wulfraed Dennis Lee Bieber AF6VN
wlfraed@ix.netcom.com HTTP://wlfraed.home.netcom.com/
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