Howdy, I’ve posted two instructables online to help folks connect their Arduino projects to Twitter via usb, no ethernet. My journey began in these forums and I hope that by posting here I’ll help someone else get where they’re going. With simpleTweet you connect a switch to Arduino (any on/off two-state device will work) and whenever that switch changes state (on/off, high/low) the Arduino code triggers a Serial() statement (Serial.write() in Processing; Serial.println() in Python.) That statement is passed through the usb port to your computer where Processing or Python picks it up, evaluates it, compares it to the last tweet posted to your twitter account (by comparing the first word of both messages,) and either does nothing (if the first words match we assume it’s a duplicate) or posts the new message to Twitter.
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