Mark II Update: PCB Prototypes

General Discussion
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Originally published at: https://mycroft.ai/blog/mark-ii-update-pcb-prototypes/

We have Mark II PCB prototypes! The two circuit boards, the Main Board and the Mic Board, form the Brains and Ears of our Mark II. Aaware, our partners on the hardware, have been hard at work designing these boards. Last week, they hit a major milestone. We received the first boards from the prototype board manufacturer. Aaware started testing the boards, and so far so good. When firing up the boards for the first time, it is important to take things slow and make sure everything is working properly.

The Mark II Prototype PCB arrived last week and has been tested for base functionality

So far they have tested the Memory, the SD card reader, Wifi chip, USB interface, thermal profile, power, and all systems are go!

[gallery size=“medium” ids=“39934,39932,39933”]

However, there is still a lot left to do before this board becomes our final Mark II.

Here is a list of the things that Aaware is focusing on over the next few weeks to get to a working prototype stage.

  1. Get stable Linux image running from SDcard
  2. Get WiFi running and tested/validated.
  3. Bringup I2C drivers in Linux and test PMIC and LCD touch interface
  4. Bringup mic interface, run our mic diagnostic, get the Aaware sound capture daemon running
  5. Bring up DAC interface, test/debug/validate DACAMP (sound system)
  6. Start LCD driver test/debugging
Stay tuned for more updates in the following weeks. This is a very exciting milestone.
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