Voodoo Main Discussion

[MartinB]

Hi Martin,

I will be able to determine the settings from the EEPROM contents.

The parameters are held in EEPROM bytes 1 to 18. Byte 0 will contain $AA, which tells Voodoo to read the EEPROM contents at startup. When the PIC is first programmed all the bytes are set to $FF. If Voodoo finds $FF in byte 0 at startup, it loads the EEPROM with default values and sets byte 0 to $AA.

You will be able to see the EEPROM contents using the PICkit. If you don't know how to read the EEPROM contents out of the PIC, then simply note them down and post the numbers here.

Hi George
finally up and running with the PICKit3
The attached image shows the contents of the EEPROM.

[MartinB]

The yellow is the tx the red is the rx the only difference from this pic and how it was connected before was i had the jig connected at the pcb now its at the plug not enough room at the pcb [ATTACH]54370[/ATTACH] and the wave still looks the same also with the rx coil connected

From your photograph, it doesn't look like the red wire is connected. Could be mistaken of course.

[SilverSurfer17]

No capacitor just the coil and the jig ?

[SilverSurfer17]

Ok ill pull that out and get the right one

[Qiaozhi]

I am unable to discern from that picture how you have your coil connected or the damping jig. You might be better off to connect a simple bundle coil to test the transmit.

Neither can I. But I did notice that R2 is not 3R3.
It should be orange-orange-black, not orange-orange-orange.

[surfdetector]

The yellow is the tx the red is the rx the only difference from this pic and how it was connected before was i had the jig connected at the pcb now its at the plug not enough room at the pcb [ATTACH]54370[/ATTACH] and the wave still looks the same also with the rx coil connected

I am unable to discern from that picture how you have your coil connected or the damping jig. You might be better off to connect a simple bundle coil to test the transmit.

[SilverSurfer17]

The yellow is the tx the red is the rx the only difference from this pic and how it was connected before was i had the jig connected at the pcb now its at the plug not enough room at the pcb and the wave still looks the same also with the rx coil connected

[surfdetector]

You where correct i disconnected the tx loop and thought it was the rx this it with the tx connected [ATTACH]54366[/ATTACH]

Post a clear picture of the transmit portion of your board with everything connected exactly as it was when you took this last picture. Coil, damping resistor etc...

[Qiaozhi]

OK thanks for update.
But it should be, for example i want book, but i dont want to pay 38USD for shipping, and i don't want to await too long for book.
With kindle i can have it instantly.
I understand that there are downsides of publishing ebook but there more advantages.
Best regards

There are no advantages to publishing an ebook ... except to those who want to rip-off the contents.

[detecto]

38 for shipping
---
your country?

Srbija

[SilverSurfer17]

You where correct i disconnected the tx loop and thought it was the rx this it with the tx connected

[kt315]

38 for shipping
---
your country?

[detecto]

OK thanks for update.
But it should be, for example i want book, but i dont want to pay 38USD for shipping, and i don't want to await too long for book.
With kindle i can have it instantly.
I understand that there are downsides of publishing ebook but there more advantages.
Best regards

[6666]

There is no intention to offer The Voodoo Project in as an ebook.

Pity,
there is a member on here that has been waiting for amazon to supply a book since november.

[SilverSurfer17]

The tx coil was connected and the damping resistor jig. I wonder if that pos speaker fried a resistor. I think I'm going to order a assortment of resistors. Whats the right wattage size 1/4 watt ?