thump
An automatic ceiling thumper for noisy neighbors using a piezo vibration sensor and pneumatics.
Because nobody has time for broom handles.
Prototype
Features
- Runs on Arduino microcontrollers
- Monitors neighbors' stomping and triggers a thump based on a configurable stomp threshold
- Accepts IR remote signal to change thump threshold, manually trigger thumps, or arm/disarm
- Uses standard 3000psi air tanks
- Full-auto thumping
Schematic / Components
(schematic and component list to be added)
- Accepts an analog output voltage (PWM from 0V to 5V) from a microcontroller, combined with a low-pass filter for smoothing, to set a reference voltage that acts as a threshold for activating the thump
- Detects ceiling vibration using a piezoelectric sensor, which converts vibration to a high-voltage, low current signal. Normalizes this voltage then amplifies the signal using one comparator in the LM358 op-amp
- Uses the second comparator in the op-amp to compare the vibration signal voltage to the threshold voltage from the Arduino, activating a transistor that powers a pneumatic solenoid when a thump is required
