Having trouble getting the ArduCam SPI (MP2) camera to work

[sgbaird]

I should probably try adding 4.7kOhm pull-up resistors and order a Pico H and some type of ESP32 microcontroller to help with troubleshooting.

• https://stackoverflow.com/questions/73294126/i2c-not-working-on-the-raspberry-pi-pico-w-with-micropython/73359147?noredirect=1#comment130657256_73359147

• Does this work for the Pico W? ArduCAM/PICO_SPI_CAM#9
• https://github.com/namato/micropython-ov2640
  • id argument required for I2C namato/micropython-ov2640#8
• Any compatibility/version for micropython? (Pico W) ArduCAM/PICO_SPI_CAM#8
• Does this work with arducam ov2640 2 MP? lemariva/micropython-camera-driver#74
• Any incompatibilities/nuances for use with Pico W? edwardwebster/Micropython-Arducam#2
• Alternative repo for OV2640 edwardwebster/Micropython-Arducam#1
• Have you tried this with a Pico W? Xraydylan/Arducam-OV2640-Pico-Package#3
• Using with other uPython devices lemariva/uPyCam#21

[sgbaird]

Giving up on Arducam's OV2640 2MP. I had to replace the ribbon cable, there hasn't been any support from Arducam (forums and contact form) after about a month. The forum post I made won't even post because it's being "held for review" (~26 days). I'm planning to hold out for the Enviro Camera (Pico W onboard) and probably set it up as its own MQTT device rather than try to do hardwired data transfer between it and the Pico W running the experiments.

Doesn't seem that I needed pull-up resistors. Probably not an issue/discrepancy between Pico H and Pico W. Not worth it for me, hence planning to wait for something better or go with something other than the Pico. Technically I could also probably go with Adafruit's guide on taking camera images and transferring them to the Pico; however, this is also a CircuitPython implementation.

Switching back to CircuitPython seems like a possibility now that a bug affecting adafruit_minimqtt has been fixed in the firmware.

[sgbaird]

The Grove Mini Camera seems like a nice option if it was in stock and assuming it could be easily set up to work with Pico W running MicroPython.

See also:

• https://wiki.seeedstudio.com/Grove-Serial_Camera_Kit/
• https://www.seeedstudio.com/Grove-Vision-AI-Module-p-5457.html (not sure if this would have MicroPython support)

Not a color camera, but an IR camera might be interesting for other applications https://wiki.seeedstudio.com/Grove-Thermal-Imaging-Camera-IR-Array/

[felixmosh]

Hi @sgbaird did you managed to connect & take picture with OV2640 & pi pico W?

[sgbaird]

No, but if I come back to this I plan to follow the tutorial from https://learn.adafruit.com/adafruit-ov5640-camera-breakout/raspberry-pi-pico-usage using their Adafruit camera.