Flask-Security example

 

References :
Flask-Security 如何Session CSRF和REST Token兼得 - 简书
Token Based Authentication with Flask-Security · Desi Penguin's Blog

Linux disabling blank screen

$ xset s off
$ xset -dpms
$ xset s noblank

References :
How to Disable the Blank Screen on Raspberry Pi (Raspbian) | HackLab

Arduino LowPower library Serial print 亂碼

Serial.flush();
LowPower.powerDown(SLEEP_1S, ADC_OFF, BOD_OFF);

References :
Low Power library messing up serial text

ThingSpeak created_at to Python datetime

created_at is ISO 8601 format.

import dateutil.parser

yourdate = dateutil.parser.parse(datestring)

import datetime
datetime.datetime.strptime( "2007-03-04T21:08:12Z", "%Y-%m-%dT%H:%M:%SZ" )

References :
How do I translate a ISO 8601 datetime string into a Python datetime object? - Stack Overflow
pythingspeak/thingspeak.py at master · ninjawil/pythingspeak

InfluxDB enable Web UI

# vi influxdb/etc/config.sample.toml

[admin]
    enabled = true

Use environment variable:

INFLUXDB_ADMIN_ENABLED=true

$ vi docker-compose.yml

influxdb:
  image: influxdb:latest
  container_name: influxdb
  ports:
    - "8083:8083"
    - "8086:8086"
  environment:
    - INFLUXDB_ADMIN_ENABLED=true
  volumes:
    - ./influxdb:/var/lib/influxdb

References :
influxdb/config.sample.toml at master · influxdata/influxdb
docker-influxdb-grafana/docker-compose.yml at master · nicolargo/docker-influxdb-grafana

Supervisord on OpenWrt

SupervisorをOpenWrtで使ってみる - Zopfcode

# pip install supervisor


sample configuration file

# cp /usr/lib/python2.7/site-packages/supervisor/skel/sample.conf /etc/supervisord.conf

# vi /etc/init.d/supervisor

#!/bin/sh /etc/rc.common
#
# AUTHOR: Takumi Sueda
#
# Start/stop/restart supervisor in OpenWrt. START=91 USE_PROCD=0
PROG=/usr/bin/supervisord DAEMON=${PROG} # Location of the pid file
PIDFILE=/tmp/supervisord.pid # Config of supervisor
CONFIG=/etc/supervisord.conf start_service()
{
# $DAEMON -c $CONFIG -j $PIDFILE
procd_open_instance
procd_set_param command $PROG -c $CONFIG -j $PIDFILE
procd_set_param respawn
procd_close_instance
touch $CONFIG
} stop_service()
{
kill $(cat $PIDFILE)
}

# chmod u+x /etc/init.d/supervisor

# /etc/init.d/supervisor start

開機自動啓動
# cd /etc/rc.d
# ln -s ../init.d/supervisor S99supervisor

fatal error: libxml/xmlversion.h: No such file or directory

# apt-get install libxml2-dev libxslt1-dev