OpenMV

iabdalkader

Not much processing happens, the text get copied to a buffer if USB is connected, so you can leave the print statements. If you want check if USB is connected try:

Code: Select all

import pyb
usb = pyb.USB_VCP() 
if (usb.isconnected()):
   print("d")

iabdalkader

kwagyeman wrote: ↑
Fri Jul 03, 2020 11:50 am
Wait, what do you mean? We support TCP and we sockets are just data over TCP.

The MicroPython module/code that does that depends on lwip, that's why it's not enabled.

iabdalkader

Hi, there's no builtin support for websockets because it requires LWIP which we can't use with WINC.

iabdalkader

No, it needs to be added to builtin modules in mpconfigport.h.

iabdalkader

https://openmv-doc.readthedocs.io/libra ... draw_cross

iabdalkader

We have an RPC library that lets you connect to and control the cam, have a look here: https://github.com/openmv/openmv/blob/m ... /README.md

iabdalkader

Why do you have to post this 3 times in all topics ?

iabdalkader

Your code is fine and you have the latest fw.. Try removing the sensor and attaching it again with the screws so it's making full contact.. Please note you should Not remove/attach the sensor with the cam plugged in, otherwise it could short something.

iabdalkader

The firmware file should be on SD card, please undo the changes to the path read the comments in the script.

iabdalkader

Hello,

You can sponsor us now on github:

https://github.com/sponsors/openmv

iabdalkader

If main.py is not found the code waits for input from the user/IDE. If the FS is created on flash it creates the default main.py (blinking LED). The main.py is not created if SD is used. That's the default code if you want to change something you have to rebuild from source.

iabdalkader

These are the possible values for the WINC1500. Note these constants are not exported to Python code so you have to use numeric values if you really have to use them: // Socket option. // Used with the @ref setsockopt function #define SOL_SOCKET 1 // SSL Socket option level. // Used with the @ref se...

iabdalkader

Please report a bug on guithub and I'll fix it.

iabdalkader

For example, the docs are crystal clear that nothing above 32GB The docs are wrong/outdated, higher capacity SD cards have been supported for years. but the response is...fuzzy I use Samsung EVO/U3 32GB and 64GB and they both work fine. My reply can't be more specific. EDIT: I see you want me to te...

iabdalkader

I appreciate you theorizing as the problem, but are you saying I have discovered this issue a year after the H7's release and there is next to no discussion about it on the boards? I can't be the first person to run up against this. How do you deal with this exact same issue on your own H7s, of whi...

iabdalkader

Do you know that class 10 cards work or do you recommend a different class perhaps? What class 32GB cards do you have at your disposal for testing?

Class 10 is not the fastest, UHS/U3 is the fastest. I use Samsung EVO/U3 32GB and 64GB and they both work fine. Try formatting the card with exFAT.

iabdalkader

Hi, I've updated all the FIR I2C code, the older MLX sensor still uses soft-i2c but the other two sensors (AMG and MLX90640) are now using HW I2C. And I've also enabled FM+ for the MLX90640 to allow the fastest I2C freq possible. Note the MLX90640 driver got an update from MLX upstream, the update i...

iabdalkader

The WiFi performance has been improved since 3.6.2, if you have an older firmware please update first.

iabdalkader

ArneLegrand wrote: ↑
Fri May 15, 2020 9:10 am
That would be great! OMV3/F7 is this the same is the M7?

Yes

iabdalkader

Hi, the tensorflow library was disabled on OMV3/F7 because it didn't fit the flash/ram at that point, with the latest update the library is much smaller now and I think I can re-enable it on OMV3/F7.

iabdalkader

No you need the WiFi shield.

iabdalkader

Hi, I've updated and fixed all the I2C code, and tested AMG8833, MLX90621 and MLX90640 on OMV3, OMV4 and OMV4P... and they're all working fine. The attached firmware image should fix any issues with AMG8833 please try it and let me know.

iabdalkader

I still don't know what camera you're using but anyway, we're going to update and fix the I2C code used for FIR sensors very soon, so this issue should be fixed soon.

iabdalkader

Hi, thanks a lot for all the hard work guys, OpenMV is made of sweat, love and awesomeness. 1. Is there any word on when is the new firm released, it is almost 2 weeks since the splotch accident? 2. Is it possible to download the one that was briefly up, I'm working on hi-res and I would like to te...

iabdalkader

Could be a wiring issue, please double check the connections (try different/shorter wires)...Do you have the H7 or H7-plus ? And are you using the Sparkfun breakout board ? If not you may need to add pull-ups to the SCl/SDA lines. Also please post the code.

iabdalkader

This issue has been fixed in the latest firmware (3.6.2)

iabdalkader

Hi, I've found a bug in the software I2C on the H7, I'll fix it and this fix will be in the next release (which will be out in a few days.)

iabdalkader

You would configure it as ExtInt but this pin doesn't have an alias like (P0, P1 etc...) so it's not accessible from pyb.

iabdalkader

I'm trying to send images coninuously to a php by http POST and after two times, three four the camera reboot or disconnect. Not all the time in the same line nor in the same snapshot. I have tried many things. Here is the last code attached. Could be a memory issue that I have to manage? It is a p...

iabdalkader

Hi, I have a lot of PRINT statements in my script. They slow down my execute speed in the IDE. Do the PRINT statements also slow down the execute speed when I run the script without the IDE. (I.E on batteries.) If they do slow the execute speed, can I delete them with a blanket command, or do I nee...

iabdalkader

It seems it takes 2 or 3 frames, there's an entire section about it in the datasheet (Changes to Integration Time)

iabdalkader

I tested lenet.network, as you can see it's working fine (Note: I had to lower the threshold for these numbers)

iabdalkader

I don't know what could be wrong with your network, but the lenet.network example should work fine. Maybe it's your hand writing ? Try it on printed digits.

iabdalkader

Maybe it's overfitted, you need more training images. The smile network is trained on 18,000 images.

iabdalkader

You need to copy the file again, safe eject and then reset. There's another way to update using the debugging header on the wifi shield a power supply and Arduino (google WINC1500 firmware update) it's much more harder to update the firmware this way.

iabdalkader

Hi, please make sure the file is written, try safe remove/eject the drive before resetting the cam.

iabdalkader

Hi I tested the AMG sensor again today with OMV3 and OMV4, and it's working fine, if there's no driver bug there's not much else I can do for you. You can try to run an I2C scan and see if the sensor is detected, if it's not detected (code gets stuck) it's either the wiring or maybe the sensor is br...

iabdalkader

you need to build the mpy cross compiler, cd micropython/my-cross and run make.

iabdalkader

I would like to know if the board is capable to be attached to a flir sensor, a display and to another shield with wirelles capabilities Yes we have a FLIR Lepton adapter that allows you to use any of the Lepton modules with the OpenMV-H7 and OpenMV-H7+ cameras: https://openmv.io/collections/cams/p...

iabdalkader

Maybe you can find an external compression module/library here:
https://github.com/micropython/micropython-lib

It won't be fast, but it should work.

iabdalkader

Hi, we're okay thanks for asking...

No, MicroPython doesn't format or repair the SD card. Only the flash is managed.

iabdalkader

Please read the docs:

http://docs.openmv.io/library/omv.image ... .blob.code

iabdalkader

You can do both at the same time, but the video FPS will be limited by the person detection FPS. Note with the last TF update, the person detection is slightly faster (still under 10FPS though), I'll make a new release soon.

iabdalkader

We use MicroPython's drivers, you need to edit MicroPython UART driver.

iabdalkader

Thank you iabdalkader for ur answer, I have two additional questions: 1. What is a meaning of pins: RSVD1...RSVD5 - for what is each of them responsible for? (base.sh from: open MV Cam H7 Base Schematic) 2. I don't know if ur confirmation is also related to "If I do I would need to make changes in ...

iabdalkader

Please search the forums for RTC topics, you'll find many examples on how to initialize and use the RTC, there's even a script saving images with timestamps (and an example in the IDE and docs). However, note you need to set the RTC time on each power up and keep the power connected otherwise the RT...

iabdalkader

There seems to be an issue with UVC firmware and macOS I can not get it to connect to camera in opencv. I have confirmed OPENMV4 is working as UVC device as it shows up in system profiler under cameras as OpenMV Virtual Comm Port in FS Mode #2: Model ID: UVC Camera VendorID_4617 ProductID_43985 Uni...

iabdalkader

Yes it's possible, you can design your own sensor module based on ours. The hardware and software are opensource you can find them on github.

iabdalkader

Please double check the wiring, make sure gnd and 3.3v are connected, and SCL, SDA are not switched. The AMG was tested recently and the driver code is working.

iabdalkader

This just means that your model uses an operator that's not support by TF lite port for microcontrollers. You need to replace that operator, see the list of supported ops here: https://github.com/tensorflow/tensorflow/blob/master/tensorflow/lite/micro/kernels/all_ops_resolver.cc#L21 Please keep in m...

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