August 9, 2017 AT 12:00 am
Punch Activated Arm Flamethrowers #WearableWednesday
This project is so crazy we don’t recommend trying it at home! Via Allen Pan on hackster.io
The art of firebending as seen in Avatar: The Last Airbender and The Legend of Korra is a melding of Asian martial arts and pyrokinesis. So how can we control fire with fancy fight moves in real life? With Arduinos, of course!
The flamethrower part of this project is composed of a butane fuel chamber and a solenoid valve. At the business end there is a modified arc lighter.
The punch activated part of this project is an Arduino Pro Mini and an accelerometer (in this case an LIS3DH Breakout from Adafruit). A fist performing a punch has a fairly unique acceleration profile that looks like a significant positive acceleration (the beginning of the punch), followed by an extreme deceleration (the end of the punch) within a small window of time (
Featured Adafruit Product!
Adafruit LIS3DH Triple-Axis Accelerometer (+-2g/4g/8g/16g): The LIS3DH is a very popular low power triple-axis accelerometer. It’s low-cost, but has just about every ‘extra’ you’d want in an accelerometer:
- Three axis sensing, 10-bit precision
- ±2g/±4g/±8g/±16g selectable scaling
- Both I2C (2 possible addresses) and SPI interface options
- Interrupt output
- Multiple data rate options 1 Hz to 5Khz
- As low as 2uA current draw (just the chip itself, not including any supporting circuitry)
- Tap, Double-tap, orientation & freefall detection
- 3 additional ADC inputs you can read over I2C
To all that, we’ve also added:
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