![]() If this sounds like something you’d like to make, he has detailed instructions along with the software used available on his site. All of this is powered by a small 3.6v Li-ion battery, which is the largest part of the circuit. After the microcontroller collects the data, it’s stored in 32K of EEPROM on a 24C256. The microcontroller collects data from a Freescale MMA7260, a 3-axis accelerometer that he extracted from a third-party Wii nunchuck controller. To keep the circuit small, he built it around the popular ATtiny13 microcontroller. ![]() Have you ever wondered how high or how fast a model rocket goes when you launch it? did, so he decided to build a low cost, lightweight data logger that he could fit into the nose cone of his rocket.
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