PCBWay Supports High Precision Advanced PCBs: [ Ссылка ]

0:00 Intro
0:31 Observe piezo raw signal
1:48 Begin signal conditioning
2:24 Rectify signal
2:59 Peak detector
5:00 Clamp voltage
5:48 Schematic Design
8:58 Ordering PCBs from pcbway.com
9:26 PCB hook up to Teensy 4.1 and Adafruit I2S audio board
10:09 Sketch overview
11:57 Trigger input detection algorithm
13:36 Drum Demo

When piezo transducers are mechanically struck, they generate voltage spikes that can vary in voltage level, polarity, and active duration. The voltages can be a few volts or many tens of volts.

This pcb provides an interface between piezo elements and a microcontroller input (analog or digital). It limits the voltages to safe levels, filters them, and provides a more consistent level-sensitive output as the device is struck with varying intensity.

This pcb provides a 4 channel signal conditioner, allowing piezo elements to be used in a drum sample player on Teensy 4.1

Sketch, schematic and wiring diagram:
[ Ссылка ]
Bare PCBs available at pcbway.com (I may receive a commission if ordered): [ Ссылка ]
Teensy Audio Design Tool Gui:
[ Ссылка ]
Piezo transducer datasheet example:
[ Ссылка ]
Digital audio latency timing considerations in hearing perception:
[ Ссылка ]

Equipment I regularly use (support the channel by shopping through these affiliate links - I may earn a small commission and it doesn't cost you extra):
Mustool MT315 Digital Microscope [ Ссылка ]
946C Solder Hot Plate 200mm x 200mm [ Ссылка ]
ANENG AN8008 True RMS Multimeter [ Ссылка ]
Minleaf NPS3010W Power Supply [ Ссылка ]
FY6900 Dual Channel 60MHZ Signal Generator [ Ссылка ]
Siglent SDS1104X-E 100Mhz Digital Oscilloscope 4 Channels Standard decoder
Amazon.com: [ Ссылка ]
Amazon.ca: [ Ссылка ]

Support me on Patreon: [ Ссылка ]
LBRY/Odysee: [ Ссылка ]
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