Measuring a Lemon Battery with an OLPC XO Laptop


Some time ago Sameer Verma from the OLPC San Francisco community posted a video of a simple LEGO WeDo robot which he programmed with Scratch on an XO. Now more recently he published yet another great video where he measured the voltage from a Zinc and Copper lemon battery using the Measure activity:

After Guzmán Trinidad's pulse meter this is the second very interesting application of an XO to measure an environmental variable I've seen in a short time. Now I definitely can't wait to see what Sameer, Guzmán, and others come up with next!


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Resumen en español al final del artículo

If you've been reading OLPC News for a while you will know that I'm a big fan of projects combining XOs and Sugar with all kinds of sensors, robotics parts, and similar components: