python-circuit | Simple implementation of the Circuit Breaker pattern

by edgeware Python Version: Current License: Apache-2.0

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Simple implementation of the Circuit Breaker pattern

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python-circuit Examples and Code Snippets

default

Python

Lines of Code : 17

License : Permissive (Apache-2.0)

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import logging
import time

from circuit import CircuitBreakerSet

circuit_breaker = CircuitBreakerSet(time.time, logging.getLogger(
    'circuit-breaker'))
circuit_breaker.handle_error(ValueError)

def fn(circuit_breaker):
    try:
        with circ

Twisted Support

Python

Lines of Code : 6

License : Permissive (Apache-2.0)

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import logger

from circuit import TwistedCircuitBreakerSet

circuit_breaker = TwistedCircuitBreakerSet(reactor, logging.getLogger(
    'circuit-breaker'))

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Python

Lines of Code : 1

License : Permissive (Apache-2.0)

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http://www.apache.org/licenses/LICENSE-2.0

Community Discussions

Trending Discussions on python-circuit

Adafruit's "adafruit_servokit" library returns error on setting angle of servo

QUESTION

Adafruit's "adafruit_servokit" library returns error on setting angle of servo

Asked 2021-Oct-25 at 17:00

I'd like to control a servo by a given angle.

I am using a RaspberryPi 4 Model B which is running Raspian. The servos are connected to a Adafruit PCA9685 16-Channel Servo Driver. The servo driver is connected to the RaspberryPi via i2c.

Python version 3.7.

I used the following tutorial: https://learn.adafruit.com/16-channel-pwm-servo-driver/python-circuitpython

I am able to properly control a LED (just like in the above tutorial) with the setup.

The LED is connected to the servo driver on channel 8, whereas the servo is connected at channel 2.

So here's my code (controlling the LED also included):

...

ANSWER

Answered 2021-Oct-25 at 17:00

I solved the problem myself. Here's what I did:

I was confused by the difference between circuitpython and regular python. As far as I understand this, circuitpython is a whole programming language with its environment. If that is even possible to install on the RaspberryPi, I am not sure. I checked on circuitpython's official website and it does not seem to be supported, check the download's page. In case you have circuitpython installed, you can refer to this Github page: https://github.com/adafruit/Adafruit_CircuitPython_PCA9685

Anyway, what I am looking for is Adafruit's library for "regular" python. This can be pulled from here: https://github.com/adafruit/Adafruit_Python_PCA9685 Check out the readme.md for setup instructions. With this, it worked for me. Controlling servos is now fairly easy.

Source https://stackoverflow.com/questions/69632629

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