8/4/2023 0 Comments New tweetbotImplementationįor this project, I am using the following third-party libraries: Without an accurate timestamp all API requests will fail, so it is important to make sure the Netduino’s clock is updated before making API calls. It should also be mentioned that one of the OAuth parameters is the current date and time formatted as a Unix timestamp. I found that it takes around 500-1500ms to generate the signature on a Netduino Plus depending on the input parameters. Generating the OAuth signature is the most computationally intensive part of making API calls. This signature is encoded in a Base64 string. One of these parameters is the OAuth signature, which is generated by creating an HMAC-SHA1 hash of the HTTP method, the normalized URL, the other OAuth parameters, and any POST variables (or query string parameters for GET requests). An Access Token and Access Token Secret are automatically provided for your account when you register an application.Įach API request must have an Authentication header with certain OAuth parameters. Account-specific API calls require an Access Token and Access Token Secret, which are generated after giving an application permission to access your account. To communicate with the Twitter API, you must first register an application to get the necessary Consumer Key and Consumer Secret values. Twitter currently requires all API calls to be authenticated with OAuth. For this project, I decided to make the Netduino communicate with Twitter’s API directly, which means no external websites or proxies are necessary. Looking around, I found a project called Tweet Library for Arduino, which sends tweets through an external website, presumably to avoid implementing OAuth on the Arduino. The only thing I couldn’t find is a library for Twitter. You have access to network sockets via, you can perform HTTP requests via System.Http, and there are even a few lightweight web server implementations available. What can you do with it? Quite a lot, actually, as seen in the Project Showcase section of the Netduino Forums. NET Micro Framework and the “Plus” version adds a 10/100 Mbps Ethernet port, giving you a very powerful network-capable device for about $59 USD. The Netduino can run programs written in C# for the. I recently purchased a Netduino Plus, a small (but powerful) board based on an Atmel 32-bit microprocessor with the same form factor as an Arduino. Update April 14, 2011: This project is now on CodePlex: MicroTweet – Twitter OAuth API Library for the.
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