Pinpointer with discrimination "Cat-FM" on ATMega328P

[void118]

My pcb design for Arduino pro mini board, If you are Interested I will public It.

[void118]

Thanks Void118 for V.1.5.1 , Regards, Marty

You are welcome), try It please and leave some feedback..., It's very Interesting...

[MartyJ1963]

Thanks Void118 for V.1.5.1 , Regards, Marty

[void118]

"Cat-FM" New Revision 1.5

Friends, here Is new revision of "Cat-FM" firmware v.1.5

1. After uploading firmware, default sensetivity 2.
2. We have 3 levels of sensitivity.
3. New value of sensitivity stores In MCU.
4. Short button press -> recalibrating device.
5. Long press (more than 0.5 sec) -> turn device to sensitivity setting mode.
6. Short press In sensitivity setting mode Increase sensitivity by one and you will hear number of current setting.
7. Long press In sensitivity setting mode return device to normal mode.
8. 0 - lowest sensitivity, 3 - highest sensitivity.
9. recalibrating speed Increased two times.

v1.5_pre_release:
https://drive.google.com/file/d/1lNbU3C4arMsDMjcgZmZQ9NGJ7Hv5GRHY/view?usp=sharing

v.1.5.1_stable:

https://drive.google.com/file/d/1yiBl95pAOtCZk65aXvc3W2ZVEDllB_Js/view?usp=sharing

[void118]

Cat_FM v.1.4 fast Init +high sense:

https://drive.google.com/file/d/1hrMTzTD1xcOe0zNyQLhFg20dlzxQzWJU/view?usp=sharing

[void118]

Friends, just for sensitivity testing, here Is test version of firmware with high sense:

Cat_FM_v1.3_high_sensitive_experimental

https://drive.google.com/file/d/1KM1g5BuQPqWDisfUqgfswMthEZcF1tuq/view?usp=sharing

[6666]

@6666,,,,,,,,,,,I've sent you an email regarding the ATmega programming steps I used wth AVRDUDESS 2.13. Regards, Marty

Thanks Marty

[MartyJ1963]

@Void118 - Thanks for the new link. I already ordered the others now but I will order some of these too. I plan to make a few more pinpointers! Regards, Marty

[MartyJ1963]

@6666,,,,,,,,,,,I've sent you an email regarding the ATmega programming steps I used wth AVRDUDESS 2.13. Regards, Marty

[void118]

the strange thing is that with a normal passive piezo it doesn't sound at all

Hmm, It's realy strange....

[void118]

Thanks again Void118 for this brilliant little project. Regards, Marty.

Thank you Marty), try to use this electromagnetic buzzer It will sounds much louder

https://www.amazon.com/Universal-Passive-Buzzer-Electromagnetic-Resistance/dp/B08FR7LBHK

[void118]

Ok I will try again, what is the hex value for the LOCK FUSE ? thanks

0xFF

[MartyJ1963]

Hiya guys,,,@Void118 - Thanks for the new code, it works great. I have made the 1/2 Ferrite coil - 50mmx10mm. The Inductance was 2.945MH and I used a 33NF Box capacitor. It detects a UK 10p at 1.5 inches,,,a UK 20p at 1 and 3/8 of an inch. I wll test later with other targets. Since I loaded the V1.3 Hex file the volume of the piezo has increased. I can hear it enough now to use in the field although I have placed an order for the same passive buzzer piezos that Void118 kindly gave a link to. I'm really pleased with this project Void118 has gifted to us and it is the best pinpointer that I have made, personally, to date. It would be even better if we could add a vibro-motor for extra target indication.Thanks again Void118 for this brilliant little project. Regards, Marty.

[useus]

Just now I tried to connect electromagnetic 16 Ohm buzzer and It's much louder than piezo buzzer....

ok then it's as I thought. I already own it electromagnetic but it is 45 ohm so the noise is lower. the strange thing is that with a normal passive piezo it doesn't sound at all

i will buy a 16 ohm one


i wanted to be sure before printing the pcb

[6666]

Hi, don't touch It please)

Ok I will try again, what is the hex value for the LOCK FUSE ? thanks