Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.
Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
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This software is designed to run on all POSIX system to log SMA Sunny Boy Inverter data into an MYSQL database via RS485 *ONLY*. It includes scripts to display the data using Highcharts via a webpage.
If you want to log using bluetooth, i'd recommend you go to code.google.com/p/sma-bluetooth/
Update: July 2011
I haven't worked on this project for a while now and don't intend to do anymore with it.