Delta Pulse

[Qiaozhi]

I had the problem in the dialog of Nicholas and solved it by putting an inexpensive blue screen.weird happened! regards

I don't think the colour of the screen makes any difference. It's the voltage required for the LCD contrast that is important, and I suspect your blue screen LCD requires +5V.

[sakis1]

I had the problem in the dialog of Nicholas and solved it by putting an inexpensive blue screen.weird happened! regards

[Qiaozhi]

Hi Jap

I need your Help
Programming the PIC 18F252
I noticed this error
So I only lighting on LCD but no program

Note: The PIC used is a 18F252 - I / SP
becaufe the 18F252 - E / SO does not exist
What do you think? Error range of PIC.

TRY blue screen, not green.
regards>

One thing you need to watch out for with the 2-line 16 character displays, is that they do not all conform the specification. The green LCDs with 16 pins in one row along the bottom of the PCB, need a +5V supply for the contrast control; whereas the green LCDs with 16 pins in two rows on the side of the PCB, need a -3V supply. With the latter type you can see the characters in the display very very faintly if you connect pin 3 to 0V. This will tell you that it is expecting a negative supply for the contrast control. If you're using a PIC, then a simple solution is to use a spare output port to drive a diode pump, and thus generate the required negative voltage.

[sakis1]

Hi Jap

I thank you Jap the program to another program such Microchip. programming is unrolling correctly but still the same problem
The display is completely blank no program opens.
Against by a similatuer ISIS hopefully.
I try to program three PIC but no reading on LCD.
I think the Hex file is corrupt.

I ask someone who owns a file is good if walking with his detector can share.

Cordially
Nicolas

TRY blue screen, not green.
regards>

[jap]

Hi pigeon
This question Repeater[And that hate him] - should keep in mind that the length of detection[Within] equals once or one and a half times the length of the diameter of coil and you will not get the best distance from this only by increasing the diameter.[And grow Resistance parallel to coil].,Taking into account the size of the target proportion to diameter of coil.Of course, a small target with a small coil and vice versa.
-u 50cm coil is good .
-You did not mention the size of the target???
-detection in air Differs from inside the earth.
-This improvement to some extent and stopped at because it depends on many factors, including the design itself.
-try to make 1x1m with Same specifications ohm , uh,,Possible that up to ask!!!!!
best time
j.

[pigeon]

hi jap

I have built a 50 cm coil and it detected metals at 1m depth. is it possible to improve this coil so that it can detect metals at 1.5m or 2m depth
tank you , best time

p.

[Nicolas]

Hi Nicolas
-The prog. Found within the HEX file a configuration and their work is done in comparison with the used pic.
-try to use another program covering values such as icprog106A
and see results, if similar not validity programming the PIC 18F252 - I / SP.
best time
j.

Hi Jap

I thank you Jap the program to another program such Microchip. programming is unrolling correctly but still the same problem
The display is completely blank no program opens.
Against by a similatuer ISIS hopefully.
I try to program three PIC but no reading on LCD.
I think the Hex file is corrupt.

I ask someone who owns a file is good if walking with his detector can share.

Cordially
Nicolas

[jap]

Hi Nicolas
-The prog. Found within the HEX file a configuration and their work is done in comparison with the used pic.
-try to use another program covering values such as icprog106A
and see results, if similar not validity programming the PIC 18F252 - I / SP.
best time
j.

[Nicolas]

Hi Jap

I need your Help
Programming the PIC 18F252
I noticed this error
So I only lighting on LCD but no program

Note: The PIC used is a 18F252 - I / SP
becaufe the 18F252 - E / SO does not exist
What do you think? Error range of PIC.

[hitman]

Hello everyone . does pcb of labtec 1 (deltapi_v1_treiti) is with no mistakes.tnx

[g.s]

Hello. if time increase the pulse ΤΧ what follows we will, (I hope that there will be increase in power).
NIKOLOV check the zener VD15 9V1

[kt315]

decrease PULSE WIDTH to 250 us and measure the time again.

[Nikolov]

Hello

I have little problem with my DP, when batt drop to 11.2V the red led is turn on-low batt. or I can use DP approximately 30min batt is lead acid 12V and 3.2Ah Irf 740 have normal temp.

Solutions ?

Thanks

[labtec1]

: Схруг:

[labtec1]

Attached pi.rar I finished all the pins on the IC so I'd like to ask you if someone can write what you where you need to go to the free pins.
If KT315 says it's worth it to try to come up with his shematic and PCB make this PI I immediately started to go pcb because I already lost the previous five days and nights, and I was unable to revive her. PCB has already started to fall apart for replacement parts!
When I was a few years ago made his first dp is working on now and then too, but unfortunately it TGSL been stolen when they broke into my car. The monkeys who do not know what is likely to serve
Now I am disappointed by the PCB and I want to make another
ask for help
Thanks to all the good people