EP#71: Wrong Variants

Wrong Variants

• Derrick from The Current Source sent in his stomp box as some "reverse" swag.
  • Recommend putting an LED in the Bass' eyeball for power notification.
• Parker
  • Finished and ordered the Raspberry Pi Compute Module LVDS test board.
  • Started researching more about I2S Audio.
    • Inter-IC Sound
    • Standardized by Philips Semiconductor which is now NXP
    • One way to represent PCM (Pulse Code Modulation) Audio
    • TAS5731
• Stephen
  • Synthesizer Update
    • Got the envelope working.
    • Envelope controls the volume and signal amplitude.
    • There was a hardware bug in that the envelope turned on before the frequency changed to the next note.
      • Stephen fixed it in software by adding a small 10ms delay before opening the envelope.
• Pick Of the Week (POW)
  • Kinda unusual this week but DRAGONLOCK
    • 3D printer files for dungeons and stuff.
  • MonoPrice is having a sale on 3D printers.
• Rapid Fire Opinion (RFO)
  • Heads up – WS2812B NeoPixels are about to change! - By Particle.io
    • 1. “RGB port refresh rate increased from 400Hz to 2000Hz, there’s LOW Frame Frequency and No Flicker appear in HD Video Camera, it improves excellent Large-Screen display effect.”
    • 2. “RGB port current-output reduced from 17.5mA to 16.5mA, it can’t be recognized by naked eyes and won’t affect the mixed OLDs & NEWs. However, it’s recommended to separate these old & new chips if your demand performance-critical.”
    • 3. “Old & New chips go all the way in PINs, application circuits, operating voltage, and PCB drawings, and the software is also fully compatible.”
    • 4. “Old & New chips are exactly the same as in Timing, Data transmission and Data structure. However, the Reset Time increased from >50us to >280us. It won’t cause wrong reset while interruption, and what’s more, it supports the lower frequency and inexpensive MCU. When the “Reset Time<280us”, don’t mixed up and kindly please make necessary amends.”
  • Samsung to recycle millions of recalled Galaxy Note 7 phones - Electronics Weekly
    • 4 million phones have been recalled.
    • All salvageable components, such as semiconductors and camera modules, shall be detached for test sample production purposes.
    • Samsung also plans to join the EU’s R&D and test efforts to develop new eco-friendly processing methods.
  • IBM unveils world’s first 5nm chip - Ars Technica
    • notable for being one of the first to use horizontal gate-all-around (GAA) transistors, and the first real use of extreme ultraviolet (EUV) lithography.
    • 2D, 3D, and back to 2D