MEP EP#68: Sonic Massage

Parker Dillmann |   |  501J DC Voltage Standard, 6225AXXSZS-DC3, DMM7510, Franklin Robotics, Google Lens, Internet of Useful Things, JuiceZero, Keithley, LSM9DS1, MacroFab, macrofab engineering podcast, MEP, OPA549, Podcast, PX3AN2BS250PAAAX, SPU0410HR5H-PB, Tertill, TMP102

MacroFab Engineering Podcast

Stream:

Download: MP3
RSS Feed: Link
Twitter: @MacroFab

Runtime: (38:48)

Hosts:
Parker Dillmann
Stephen Kraig

Guest:
N/A

Figure 1: Stephen getting the VCO working on his Synth design.
Figure 1: Stephen getting the VCO working on his Synth design.
Figure 1: Block diagram for the Synth. Coffee stain included.
Figure 1: Block diagram for the Synth. Coffee stain included.

Podcast Notes

  • Parker
    • IoT Compressor Update with part list!
      • LSM9DS1
        • IMU for vibration sensing
        • iNEMO inertial module: 3D accelerometer, 3D gyroscope, 3D magnetometer
        • 3.3V, I2C
      • SPU0410HR5H-PB
        • MEMS Microphone
        • 3.3V
        • Analog signal, will be boosted with an opamp
      • TMP102
        • Board Mount Temperature Sensors Low Power Digital Temp Sensor
        • 3.3V, I2C
      • PX3AN2BS250PAAAX
        • Pressure Transducer
        • 1/8″ NPT Male fitting
        • 5.0V
        • Analog output 0.5V – 4.5V over pressure range
      • 6225AXXSZS-DC3
        • SSR to control the compressor switch
        • 3VDC to 32VDC control signal
        • Place 10ohm in series from pin from particle photon for protection.
        • TVS 3.3V for transient protection.
  • Stephen
    • Voltage Standard Calibration complete!
      • Used the Keithley DMM7510 to dial in the voltage standard.
    • Synth Update: Now with sound effects!
      • Stephen played a bunch of warbles
      • Only one section is working at the moment – VCO – voltage controlled oscillator
      • Next update – rest of VCL complete. MIDI control – animator up and running. LFO low-frequency oscillator done.
    • Space Echo is now working (woohoo)
      • Mechanical adjustments are calibrated too!
      • Break the tape in to let it run, the sound gets better.
  • Pick Of the Week (POW)
    • OPA549
      • High-Voltage, High-Current Op Amp, Excellent Output Swing
      • 8A Continuous 60V
      • $23.44
      • Could be used for the SSPS
  • Rapid Fire Opinion (RFO)

 

Special thanks to whixr over at Tymkrs for the intro and outro!