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How to set interrupt priorities in Arduino?

由 删除回忆录丶 提交于 2021-02-20 04:50:08
问题 I am working on ESP8266. And I program it directly through FTDI using Arduino IDE. I am having problems with stack when both GPIO and UART interrupt occurs at same time or GPIO event occurs when UART sends or receives something. Is it possible to set interrupt priorities on Arduino?. 回答1: Interrumpts in Arduino have a predefined order of priority that can't be change. Here is is: 1 Reset 2 External Interrupt Request 0 (pin D2) (INT0_vect) 3 External Interrupt Request 1 (pin D3) (INT1_vect) 4

2 minutes for ZMQ pub/sub to connect in kubernetes

由 試著忘記壹切 提交于 2021-02-20 04:49:49
问题 I have a Kubernetes 1.18 cluster using weave as my CNI. I have a ZMQ based pub/sub app and I am often (not always) seeing it take 2 minutes before the subscriber can receive messages from the publisher. This seems to be some sort of socket timeout uniqe to my Kubernetes environment. Here is my trivial ZMQ app example #!/bin/env python2 import zmq, sys, time, argparse, logging, datetime, threading from zmq.utils.monitor import recv_monitor_message FORMAT = '%(asctime)-15s %(message)s' logging

Get to stream tweets from users a user is following using tweepy

由 ぃ、小莉子 提交于 2021-02-20 04:49:49
问题 I'm using Tweepy Streaming methods to try to get all the tweets from a specific user, both the ones the user created and those coming to his timeline from other users the user is following. I've tried several combinations, this one, for instance, using the user ID, only gives me the tweets that the user pushes: l = StreamListener() streamer = tweepy.Stream(auth=auth, listener=l) streamer.filter(follow=['3071126254']) The rest of trials all lead me to constant 406 responses from Twitter: l =

iOS: display firebase data in tableView

由 落花浮王杯 提交于 2021-02-20 04:49:48
问题 I try to display data from a Firebase database into my tableView. The code worked using "Tabs View Controller", but for the purpose of the project I had to include a TableView in a classic ViewController. Here is the code that should get the data from the database, and further include it in the tableview. import UIKit import Firebase import FirebaseAuth import FirebaseDatabase class NewsfeedViewController: UIViewController, UITableViewDataSource, UITableViewDelegate { var ref

Caching with JSP and HTML5: how to disable caching server-side

由 此生再无相见时 提交于 2021-02-20 04:49:42
问题 I've a Jsp that returns this html 5: <html> <head> <title>Application</title> <!-- Some script includes here --> </head> <body> <!-- My html here --> </body> </html> At the moment the user need to disable caching into the browser, else the old page is reloaded every time. I tried to force no-caching with a scriptlet in that way, but without success: <% response.addHeader("Cache-Control","no-cache"); response.addHeader("Expires","-1"); response.addHeader("Pragma","no-cache"); %> Asde the fact

Caching with JSP and HTML5: how to disable caching server-side

由 那年仲夏 提交于 2021-02-20 04:49:07
问题 I've a Jsp that returns this html 5: <html> <head> <title>Application</title> <!-- Some script includes here --> </head> <body> <!-- My html here --> </body> </html> At the moment the user need to disable caching into the browser, else the old page is reloaded every time. I tried to force no-caching with a scriptlet in that way, but without success: <% response.addHeader("Cache-Control","no-cache"); response.addHeader("Expires","-1"); response.addHeader("Pragma","no-cache"); %> Asde the fact

How to grep a term from S3 and output object name

由 谁说我不能喝 提交于 2021-02-20 04:49:07
问题 I need to grep a term over thousands of files in S3, and list those file names in some output file. I'm quite new using cli, so I've been testing both on my local, and in a small subset in s3. So far I've got this: aws s3 cp s3://mybucket/path/to/file.csv - | grep -iln searchterm > output.txt The problem with this is with the hyphen. Since I'm copying over to standard output, the -l switch in grep returns (standard input) instead of file.csv My desired output is file.csv Eventually, I'll need

Django: Get relative uri from views.py

由 泪湿孤枕 提交于 2021-02-20 04:49:05
问题 Here is what I have currently: urls.py: ... url(r'this/is/relative', 'myapp.views.callview', name='myapp_callview'), ... views.py: def callview(request, **kwargs): # I can get the complete url by doing this print request.build.absolute_uri() # Prints: https://domain:8080/myapp/this/is/relative # How do I just get: /myapp/this/is/relative or even /this/is/relative I would like to extract the relative uri from the view. I could just use regex, but I think there is already something out there

Get to stream tweets from users a user is following using tweepy

由 為{幸葍}努か 提交于 2021-02-20 04:49:04
问题 I'm using Tweepy Streaming methods to try to get all the tweets from a specific user, both the ones the user created and those coming to his timeline from other users the user is following. I've tried several combinations, this one, for instance, using the user ID, only gives me the tweets that the user pushes: l = StreamListener() streamer = tweepy.Stream(auth=auth, listener=l) streamer.filter(follow=['3071126254']) The rest of trials all lead me to constant 406 responses from Twitter: l =

creating a clickable image and applying an click event listener to it

由 爷，独闯天下 提交于 2021-02-20 04:48:46
问题 I am trying to make a website where there are portraits of people and a user will be able to click on a portrait to see more information about that person. There will a text box underneath that will change text description when each profile is clicked. I am trying to make the image a button of sorts then apply a click event via java script to change description text text. The following code i have is: HTML5 <!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>About</title> <link rel=