Teensy 4.1 - Piezo Drum Trigger Signal Conditioner Interface (4-ch)

PCBWay Supports High Precision Advanced PCBs: https://www.pcbway.com/ 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: https://github.com/GadgetReboot/Piezo... Bare PCBs available at pcbway.com (I may receive a commission if ordered): https://www.pcbway.com/project/sharep... Teensy Audio Design Tool Gui: https://www.pjrc.com/teensy/gui/ Piezo transducer datasheet example: https://www.murata.com/~/media/webren... Digital audio latency timing considerations in hearing perception: https://ask.audio/articles/monitoring... 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 https://www.banggood.com/custlink/KKv... 946C Solder Hot Plate 200mm x 200mm https://www.banggood.com/custlink/K3D... ANENG AN8008 True RMS Multimeter https://www.banggood.com/custlink/KKD... Minleaf NPS3010W Power Supply https://www.banggood.com/custlink/KKK... FY6900 Dual Channel 60MHZ Signal Generator https://www.banggood.com/custlink/vGK... Siglent SDS1104X-E 100Mhz Digital Oscilloscope 4 Channels Standard decoder Amazon.com: https://amzn.to/36fH1ui Amazon.ca: https://amzn.to/36fNWUc Support me on Patreon:   / gadgetreboot   LBRY/Odysee: https://odysee.com/@GadgetReboot:4 #ElectronicsCreators