Playing the New Doom

Stephen
- DSO138 Oscilloscope
  - Comes as a kit (just through hole) but can be purchased assembled
  - The “true” version can be had for ~$30
    - Counterfeit versions exist for $4
  - Open Source Firmware!
  - Analog bandwidth: 0 – 200KHz
  - Sampling rate: 1Msps max
  - Sensitivity: 10mV/Div – 5V/Div
  - Sensitivity error: < 5%
  - Vertical resolution: 12-bit
  - Timebase: 10us/Div – 500s/Div
  - Record length: 1024 points
  - Built-in 1KHz/3.3V test signal
  - Waveform frozen (HOLD) function available Save/recall waveform
  - In short – it’ll getcha through college
Parker
- Pinheck REV 8 is routed
  - Finishing silkscreen after the podcast
  - Placing an order for prototypes this week!
  - Switched from standard SD card to microSD card
- Next board is the I2S Audio Amp
  - TAS5755M
  - Working with the TAS5755MEVM
    - So far it kinda works
  - Need to generate a clock for it?
R.F.O.
- Making A Classic Chip From Discretes
  - Motorola MC1466 – voltage regulator
  - Stephen has made opamps with Discretes before – that was a project we finished!
    - MacroFab EP11
- Apple says sorry
  - iPhone Batteries and Performance
- Zapp from the Slack Channel asks “If my MCU has internal pullups on an IO why would they recommend additional pull up resistors externally?”
MacroFab is Hiring!
- See available positions

Visit our Slack Channel and join the conversation in between episodes!

Hosts: Parker Dillmann, Stephen Kraig

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