Search found 16 matches

by prasap1
Sat Apr 20, 2019 6:10 am
Forum: Technical Discussion
Topic: Voltage drop
Replies: 1
Views: 2171

Voltage drop

Hi, I was wrote a code for shape detection, After detect a shape in openmv cam p1 value will change 0 to 1. So I'll get 3.3v from P1. In ground I connected one wire and p1 I connected one wire. By multimeter I checked voltage it shows 3.3V. Same I was connected in to 3V relay module after connected ...
by prasap1
Sat Apr 20, 2019 5:47 am
Forum: General Topics
Topic: Shape Detection
Replies: 26
Views: 33974

Re: Shape Detection

Oh, yeah, you have to use an amplifier to cover that distance. E.g. use something like this: https://www.sparkfun.com/products/12009 You can use a higher voltage on the other side to go farther. I ordered what you recommended, how can I use this. After detecting the shape in openmv cam p1 will get ...
by prasap1
Sat Apr 13, 2019 11:15 pm
Forum: General Topics
Topic: Shape Detection
Replies: 26
Views: 33974

Re: Shape Detection

kwagyeman wrote:
Fri Apr 12, 2019 12:16 pm
Oh, yeah, you have to use an amplifier to cover that distance. E.g. use something like this:

https://www.sparkfun.com/products/12009

You can use a higher voltage on the other side to go farther.
I am using only 1 meter wire, for that also I have use amplifier for get 3V?.
by prasap1
Fri Apr 12, 2019 4:26 am
Forum: General Topics
Topic: Shape Detection
Replies: 26
Views: 33974

Re: Shape Detection

Move the pin1.value() statement outside of the for loop. I am doing shape detection by using OpenMV cam, after shape detection pin1 value will change 0 to 1 but I am getting only 1.2V from pin1. voltage drop is happening. what can I do for that. I checked voltage value in pin1 its coming 3.2V but a...
by prasap1
Mon Feb 18, 2019 9:33 am
Forum: Project Discussion
Topic: Openmv with GSM module sim900a
Replies: 1
Views: 4769

Openmv with GSM module sim900a

Dear Sir
Can we communicate openmv with GSM module SIM900A?...
by prasap1
Thu Jan 24, 2019 1:32 am
Forum: General Topics
Topic: Shape Detection
Replies: 26
Views: 33974

Re: Shape Detection

kwagyeman wrote:
Mon Jan 21, 2019 3:36 pm
Move setting the pin outside of the loop. Otherwise the code is only executed if something is found and not if something is not found.
Sorry sir I am not understand, can you explain briefly.
Thanks for your supports
by prasap1
Mon Jan 21, 2019 11:17 am
Forum: Project Discussion
Topic: How to filter openmv output
Replies: 1
Views: 4722

How to filter openmv output

Can you anyone help me for how to filter openmv outputs.
Example i have 4 QR code, i that only one is correct one remains 3 are wrong QR code. When the right QR code was scanned pin1 have to get on and the QR code value i want to move to excel sheet or notepad can you help me for this.
by prasap1
Mon Jan 21, 2019 11:09 am
Forum: General Topics
Topic: Shape Detection
Replies: 26
Views: 33974

Re: Shape Detection

Do something like this: import sensor, image, time # Color Tracking Thresholds (L Min, L Max, A Min, A Max, B Min, B Max) thresholds = [(30, 100, 15, 127, 15, 127)] sensor.reset() sensor.set_pixformat(sensor.RGB565) sensor.set_framesize(sensor.QVGA) sensor.skip_frames(time = 2000) sensor.set_auto_g...
by prasap1
Sat Jan 12, 2019 2:03 am
Forum: General Topics
Topic: Shape Detection
Replies: 26
Views: 33974

Re: Shape Detection

Hi, if the rectangles are in a row in the x direction you just need to sort the rectangle objects by their x positions and then pick the 4th one from the list if it exist. You can use the sorted() method in MicroPython to sort the list and you can set the key for sorting to be equal to the x value ...
by prasap1
Mon Jan 07, 2019 2:11 am
Forum: General Topics
Topic: Shape Detection
Replies: 26
Views: 33974

Re: Shape Detection

kwagyeman wrote:
Wed Jan 02, 2019 11:22 am
See this example: https://github.com/openmv/openmv/blob/m ... on.py#L267
Dear Sir

Can you please send me the rectangles output filter example. Kindly do needful
by prasap1
Wed Jan 02, 2019 3:25 am
Forum: General Topics
Topic: Shape Detection
Replies: 26
Views: 33974

Re: Shape Detection

kwagyeman wrote:
Mon Dec 31, 2018 11:49 am
Hi, you need to write code in python to filter the object output. This is very application specific so it's up to you.
Dear Sir
Can you give the small example code for how to filter the object output, I will pickup after that.

Thanks in advance
Regards
Prasath
by prasap1
Mon Dec 31, 2018 9:21 am
Forum: General Topics
Topic: Shape Detection
Replies: 26
Views: 33974

Re: Shape Detection

Dear Sir
I am taken rectangular detection examples, it's also working fine but it's detecting all rectangles I want to detect only middle rectangle means what I want to do.
Example: one paper total 8 rectangles are there I want to detect 4th one means what I want to do.
Thanks
and
Regards
Prasath
by prasap1
Sat Dec 29, 2018 10:13 am
Forum: General Topics
Topic: openmv to arduino with template matching examples
Replies: 24
Views: 10693

Re: openmv to arduino with template matching examples

kwagyeman wrote:
Fri Dec 28, 2018 12:49 pm
Yes, go to Tools -> Save Script to OpenMV Cam.

Then after the script has been saved click the: Tools -> Reset OpenMV Cam button.
Thanks for quick support. :D
by prasap1
Fri Dec 28, 2018 11:14 am
Forum: General Topics
Topic: openmv to arduino with template matching examples
Replies: 24
Views: 10693

Re: openmv to arduino with template matching examples

hai sir i need your help for doing template matching and when the template is matched pin1 want to on, by using that i will control my process. can u give the code for the same. Thanks in advance Regards Prasath Hi, here's an example for pin control: import sensor, image from image import SEARCH_EX...
by prasap1
Fri Dec 21, 2018 11:19 am
Forum: General Topics
Topic: openmv to arduino with template matching examples
Replies: 24
Views: 10693

Re: openmv to arduino with template matching examples

hai sir i need your help for doing template matching and when the template is matched pin1 want to on, by using that i will control my process.
can u give the code for the same.

Thanks in advance
Regards
Prasath
by prasap1
Thu Dec 13, 2018 2:39 am
Forum: General Topics
Topic: openmv to arduino with template matching examples
Replies: 24
Views: 10693

Re: openmv to arduino with template matching examples

Dear Ms OpenMV, I am new to openmv. I am planning to work on image processing. I am stuck in identifying image when image processing is going through camera. May i know how to solve this problem by the by i have stored matching image in the sd card. Below is the code i am using.. can you debug the c...

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