{"id":44,"date":"2024-10-26T13:43:24","date_gmt":"2024-10-26T11:43:24","guid":{"rendered":"https:\/\/rcv.news\/?p=44"},"modified":"2024-10-26T13:43:26","modified_gmt":"2024-10-26T11:43:26","slug":"using-dns-to-save-and-read-my-cars-data-worldwide","status":"publish","type":"post","link":"https:\/\/rcv.news\/?p=44","title":{"rendered":"Using DNS to save and read my cars data worldwide"},"content":{"rendered":"\n

When I wrote the simple code<\/a> to stop loading my cars battery at 80%, I was looking for a way to save relevant car data to use it for further purposes. Relevant data was the cars battery state in percent, the charging target (80% in my case) and the mileage left on battery. In order to access this data from different devices worldwide I decided to store it in a DNS record.<\/p>\n\n\n\n

Get a free DNS record<\/h2>\n\n\n\n

I created a free DNS zone at dynv6.com<\/a>. Next step was to create a security token to update my DNS entry via API and then append a new line to my python code.<\/p>\n\n\n\n

\n

bimmerhtml = requests.get(“https:\/\/ipv4.dynv6.com\/api\/update?token=<your token goes here>&zone=<your DNS zone goes here>&ipv4=” + percent + “.” + target + “.” + range + “.0”)<\/p>\n<\/blockquote>\n\n\n\n

In order to make HTTP requests work in the python script another library is neccessary to add in the head of the script.<\/p>\n\n\n\n

\n

import requests<\/p>\n<\/blockquote>\n\n\n\n

That’s all and now you are able to read this data from other devices really simple.<\/p>\n\n\n\n

An iPhone widget<\/h2>\n\n\n\n

My first use case was to display mileage left and battery state on my iPhones home screen.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Within the scriptable<\/a> app I wrote a small script to accomplish that:<\/p>\n\n\n\n

\n

\/\/timestamp
let date = new Date();
let hours = date.getHours();
let minutes = date.getMinutes() < 10 ? “0” + date.getMinutes() : date.getMinutes();
let datum = hours + “:” + minutes;<\/p>\n<\/blockquote>\n\n\n\n

\n

url = “https:\/\/dns.google\/resolve?name=<your DNS zone goes here>”;
req = new Request(url);
let answer = await req.loadJSON();
let dns = answer.Answer[0].data;
let octets = dns.split(“.”, 4);
percent = octets[0];
target = octets[1];
range = octets[2];<\/p>\n<\/blockquote>\n\n\n\n

\n

let widget = new ListWidget();
widget.backgroundColor = Color.black();<\/p>\n<\/blockquote>\n\n\n\n

\n

let stack = widget.addStack();
stack.bottomAlignContent();
let wpercent = stack.addText(percent);
wpercent.font = Font.mediumRoundedSystemFont(48)
wpercent.textColor = Color.red();<\/p>\n<\/blockquote>\n\n\n\n

\n

let wpercentsign = stack.addText(“%”);
wpercentsign.font = Font.mediumRoundedSystemFont(28)
wpercentsign.textColor = Color.red();<\/p>\n<\/blockquote>\n\n\n\n

\n

let wRange = widget.addText(range+”km”);
wRange.font = Font.mediumRoundedSystemFont(18)
wRange.textColor = Color.white();
wRange.leftAlignText();<\/p>\n<\/blockquote>\n\n\n\n

\n

widget.addSpacer();<\/p>\n<\/blockquote>\n\n\n\n

\n

let wDate = widget.addText(datum);
wDate.font = Font.mediumRoundedSystemFont(14)
wDate.textColor = Color.gray();
wDate.leftAlignText();<\/p>\n<\/blockquote>\n\n\n\n

\n

Script.setWidget(widget);
Script.complete();
App.close();<\/p>\n<\/blockquote>\n\n\n\n

Have fun.<\/p>\n","protected":false},"excerpt":{"rendered":"

When I wrote the simple code to stop loading my cars battery at 80%, I was looking for a way to save relevant car data to use it for further purposes. Relevant data was the cars battery state in percent, Read more…<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,10],"tags":[],"class_list":["post-44","post","type-post","status-publish","format-standard","hentry","category-programming","category-tutorial"],"_links":{"self":[{"href":"https:\/\/rcv.news\/index.php?rest_route=\/wp\/v2\/posts\/44","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rcv.news\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rcv.news\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rcv.news\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rcv.news\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=44"}],"version-history":[{"count":1,"href":"https:\/\/rcv.news\/index.php?rest_route=\/wp\/v2\/posts\/44\/revisions"}],"predecessor-version":[{"id":46,"href":"https:\/\/rcv.news\/index.php?rest_route=\/wp\/v2\/posts\/44\/revisions\/46"}],"wp:attachment":[{"href":"https:\/\/rcv.news\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=44"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rcv.news\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=44"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rcv.news\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=44"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}