Monthly Archives: September 2008

Multiple time stamp checks on a microcontroller

Posted on 30 September 2008 by tigoe

Sometimes you need to manage multiple events with a microcontroller that all require different timing.  For example, you might want to control a servomotor (which requires a 20 millisecond delay), blink an LED once a second, and read some sensors … Continue reading →

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Fading an LED from a switch

Posted on 24 September 2008 by tigoe

This example uses a digital input to control a fading LED. The LED turns on when the switch goes from off to on, then fades slowly to black.  It illustrates two principles:  the idea of edge detection or state change … Continue reading →

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Using an Accelerometer to Sense Which Way Is Up

Posted on 20 September 2008 by tigoe

ITP just got some nifty flat panel mounts that can rotate 360 degrees. They’re very easy to move, it takes only one hand. When I saw them, I thought, “what good is a rotating mount if the content on the … Continue reading →

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Lantronix Analog Sender

Posted on 9 September 2008 by tigoe

Here’s a short Wiring/Arduino program that waits for a connection to the microcontroller via a Lantronix device, and sends out an analog reading when it’s got a connection. The Lantronix device is in connectMode D4, and the TX is connected … Continue reading →

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