Skip to content

Instantly share code, notes, and snippets.

Avatar
🏠
Working from home

soshial

🏠
Working from home
  • Berlin
View GitHub Profile
@soshial
soshial / freematics.md
Last active Sep 12, 2021
Freematics + Traccar (integration and configuration)
View freematics.md

In this article I listed some common problems I encountered when I tried to use Freematics OBD-reader together with traccar device-tracking server. Both are open-source, thanks to which I was able to improve both and their cooperation.

Freematics: official repo and my fork.

traccar: official repo and my fork.

What are the pitfalls and hardware drawbacks of Freematics?

  1. Currently, Freematics cannot switch between WiFi and SIM depending on connectivity. If you want to switch to a different WiFi or mobile operator - you need to open your bloody Windows and recompile everything :)
  2. Doesn't work at all without external power, has no battery. Works only when connected to USB (3.7V), OBD-II (12V), or SAE J1939 (24V). It me
@soshial
soshial / LKS-92.py
Last active Apr 12, 2020
EPSG:3059 (LKS-92) koordināšu pārrēķins uz platuma un garuma grādiem; transform coordinates code
View LKS-92.py
import math
def lks_2_latlon(x, y):
# Ellipsoid model constants (actual values here are for WGS84) */
UTMScaleFactor = 0.9996
sm_a = 6378137.0
sm_b = 6356752.314
x -= 500000.0
# Pirmā atšķirība no WGS84 - Kilometriņš šurpu, kilometriņš turpu.
@soshial
soshial / template.xml
Last active Jun 1, 2018
ABBYY FineReader HotFolder template *.fta file
View template.xml
<?xml version="1.0"?>
<scenarios xmlns="http://www.abbyy.com/FineReader/Shell/TaskAutomation/0">
<scenario name="Моя задача111">
<operation operationType="UseBatch" mode="loadOptions" batchOrOptionsPath="" checkAfterExecute="false"
optionsMode="loadOptions">
<batchOptions xmlns="http://www.abbyy.com/FineReader/BatchOptions/0" hasLanguageDataBase="false">
<ocr options="OCRO_DetectTables,OCRO_DetectPictures" textType="STT_Normal" hilightLevel="SBEHL_Thorough"
patternName="(Default)" patternMode="UPM_DontUseUserPattern">
<language type="" languages="French,RussianOldSpelling"/>
</ocr>
@soshial
soshial / outline_pdf2djvu.py
Last active Jan 14, 2017
Converting PDF table of contents into DjVu outline
View outline_pdf2djvu.py
import xml.etree.ElementTree
import djvu.decode as djvu
import sys
__author__ = 'soshial'
'''
1. export bookmarks from PDF using pdfminer:
> python tools/dumppdf.py -T ~/book.pdf > ~/toc_pdf.xml
2. use current script to convert bookmarks (we need python-djvulibre), but it could be easily done without it (using pages, see http://www.ub-filosofie.ro/~solcan/wt/gnu/d/bdjv.html)
@soshial
soshial / gist:2971507
Created Jun 22, 2012
Restoring Firefox session tabs from sessionstore.bak
View gist:2971507
import json,codecs
session_text = codecs.open( "sessionstore.bak", "r", "utf-8" ).read()
json = json.loads(session_text)
for i in range(len(json['_closedWindows'][0]['tabs'])):
print json['_closedWindows'][0]['tabs'][i]['entries'][-1]['url']
print 'done'