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Showing posts with the label reverseengineering

Rejsekort Scanner

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Unusual to this blog, the following entry is in danish due to the topic being the national transit ticketing system in Denmark, also known as Rejsekort . Læs også nyere indlæg om emnet i form af   Opfølgning op launch samt Rejsekort Scanner i samarbejde med Rejsekort A/S . Rejsekort Scanner Som det eneste program af sin art, lader Rejsekort Scanner dig aflæse dit Rejsekort direkte og øjeblikkeligt blive informeret omkring check-in status, saldo, rejsehistorik mm. Der er altså hverken behov for data-forbindelse eller kompliceret opsætning! App'en er fungerer med Rejsekort Personligt, Anonymt samt Flex. Man skal bare have en smartphone med NFC der understøtter Mifare Classic smartcards. Rejsekort Scanner er en uofficiel app uden adgang til Rejskort A/S' officielle systemer, og programmet kender derfor heller ikke alle placeringen for begivenheder udover dem der er fundet manuelt. Hvis du ønsker at opdatere denne liste kan du slå "Download placeringer...

Talking to a Kamstrup 685-382 electricity meter

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My utility company provides me with ways to see historic consumption of electricity up to a few days ago. However, by that time I have long forgotten when, what and why I did to consume as I did. In order to save power and money on the utility bill, one needs to have some way of monitoring and discovering usage patterns *immediately* as they take place! When I saw you could buy cheap US$50 used industrial strength electricity meters in the form of the Kamstrup 685-382, I decided to buy a few of those. The idea was to have it installed as a secondary meter in my house and try to hook up some sort of communication interface, connected to a low power computer responsible for data acquisition, analysis and presentation. It has to be said up front, that I am far from the only one looking into this. On a Danish engineering discussion forum , I came by other people experimenting with the Kamstrup 382, except that none of the info I came by there seemed to apply to my version of the meter. ...