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luxonis / depthai-hardware

Altium Designs for DepthAI Carrier Boards
MIT License
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What does it take to add an IMU to an OAK-D-Lite PCB? #283

Open heyangHEY opened 2 years ago

heyangHEY commented 2 years ago

I am learning vio recently and need camera+IMU data, but I only have an oak-d-lite on hand. I found that the circuit for the IMU (BNO085) is reserved on the board image And found the schematic and PCB from OAK_D_LITE_DEV, now there are two problems: image image

  1. The PCB design of lite_dev and lite at the IMU are not the same. I understand that the pcb of lite is not open source due to Myriad X, but can you post the component layout of the IMU part of the lite?
  2. Do I need to update the firmware of BNO085 and oak-d-lite after soldering on the IMU? I have consulted before and learned that I need to use https://github.com/luxonis/depthai/tree/UI-test-tools-Production to update the firmware of the IMU, but I don’t know the specific method, so could you please give me a general operating route?
Luxonis-David commented 2 years ago

Hi @heyangHEY,

  1. sure we I have attached the schematic part of the IMU on the R2M1E4 version of the board you have.
  2. I normally did the same along with the testing of the device, @Erol444 might know some other options DM9095_IMU.pdf
heyangHEY commented 2 years ago

@Luxonis-David, Thank you for your timely reply. I marked the component numbers in the schematic diagram on the PCB. Do you think I marked it correctly? In addition, what component is the part with the question mark in the lower right corner? Does the lack of it affect the IMU? image image

Luxonis-David commented 2 years ago

Sorry about the delay @heyangHEY, and I should have made a screen shoot of this section of the PCB in first place (I forgot there is no silk screen there :) ). So yes you are correct on all, and the component with question mark does not relate to IMU but stereo camera and does not need to be populated. I am attaching the screen shot of this area of the PCB which confirms the above. image

heyangHEY commented 2 years ago

thx, time to weld the IMU to the PCB. But I'm not clear on the next steps, how can I contact @Erol444, email him?

Erol444 commented 2 years ago

Hi @heyangHEY , no need, I am following this Issue:) I think you can flash the firmware to the IMU using ImuNode.enableFirmwareUpdate(True). Thanks, Erik

ricardodeazambuja commented 2 years ago

@heyangHEY, did it work at the end???

pulsar666 commented 1 year ago

@heyangHEY I'm curious to know if this worked out for you. I have an OAK D lite too that doesn't have the IMU chip on it and want to add it for my project