uncleflo
Registered since September 28th, 2017
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RP2040 Launches Rocket Flight Computer | Tom's Hardware
Saved by uncleflo on January 27th, 2022.
Putting Raspberry Pi boards into space is nothing new, but the method of achieving orbit often differs. While the Astro Pi computers headed for the final frontier onboard a SpaceX Falcon 9 rocket, there are some decidedly lower-tech approaches including, as detailed on the Tindie blog, this $45 RP2040 flight computer from Finnish designer Dan Invents. Combining the RP2040 controller with an altimeter, accelerometer, temperature sensor, and enough juice to power two servo motors (for parachute deployment on the way down), the Rockit (rocket operation computing kit) weighs just 0.18oz (5g) and measures 1.73 x 0.9 x 0.35 inches (44 x 22 x 9 mm). It comes with an open-source firmware pre-installed, and can be tinkered with and updated over micro USB. There's a 16-position rotary switch for adjusting parameters such as start and end positions for the servos, and also a buzzer, so you can more easily find your rocket after a successful landing. Compared to the 2MHz Apollo guidance computer that deposited Neil Armstrong on the Moon, the RP2040 is a powerhouse, and should be more than capable of altitude-based parachute opening and logging flight data from the sensors to a micro SD card. The kit, which costs $44.99, comes with just the board and its pin headers - you need to supply your own battery, servos, cabling, micro SD card and space suit.
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Arduino Playground - MPU-6050
Saved by uncleflo on July 15th, 2014.
The InvenSense MPU-6050 sensor contains a MEMS accelerometer and a MEMS gyro in a single chip. It is very accurate, as it contains 16-bits analog to digital conversion hardware for each channel. Therefor it captures the x, y, and z channel at the same time.
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