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  1. T

    how to make a depth meter with a standard pressure sensor ?

    Re: electronic depth meter Hi james, many thanks for your very good reply. Totue
  2. T

    how to make a depth meter with a standard pressure sensor ?

    hydrostatic depthmeter Hi james, thanks for your reply. Is it possible using a differential transducer to measure the difference between the absolute presure of the liquid and the ambient presure and divide this result by 9.81 x liquide density ? The formula : H = (Pabs - Pa) / (9.81 x...
  3. T

    how to make a depth meter with a standard pressure sensor ?

    fluid depth meter Hi all, anybody know how made a depth meter with a standard pressure sensor ? Thanks Totue
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    rf encoder/decoder (HT12D, HT12E)

    encoder decoder rf Hi, i need to replace a Holtek HT12D and HT12E with a Pic 16f676, do you know source code for this ? Thanks Totue
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    Problem with using CAM350 for converting files

    CAM350 Problem Hi, i use CAM350 to convert a RS274X file to a RS274D file, all is ok except all pieces of copper inside copper plan and isolated from this plan not appear in the converted file, there are filled. During the conversion CAM350 print this message : "WARNING: Raster polygons are...
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    How to make positive only Gerber files using PSD14.2 ?

    Hi, i have find a tool Gerbtool v12 that make this convertion but not with the demo version !!! Totue.
  7. T

    How to make positive only Gerber files using PSD14.2 ?

    pentalogic + gerber Thanks but in fact i just need to translate my RS274X files to RS274D files. Do you have any solution? Totue.
  8. T

    How to make positive only Gerber files using PSD14.2 ?

    Hi, i have a big problem with gerber creation because PSD 14.2 create composite layers with negative plots and my pcb manufacturer can't use this type of gerber, he need a positive only gerber files. Do you now how i can make this with PSD 14.2. thanks. Totue :(
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    Jtag flash programmer for Alchemy AU1000

    29dl640 Hi, i am looking for a jtag flash programmer for a Alchemy AU1000 with a 29DL640 on his bus. Thanks. Totue.
  10. T

    lead acid charger schematic with maintenance charging

    lead acid charger schematic Hi, i am looking for the schematic of a good lead acid chargeur with maintenance charging for a maximum battery of 65Ah. thanks. Totue.
  11. T

    USB to SERIAL - any schematics?

    hi, i don't have made speed test on Prolific chip but a KLSI chip can work at 230kb and a FTDI chip at 230kb. Totue.
  12. T

    USB to SERIAL - any schematics?

    Hi, take care because some rs232<>usb converter don't work with modem. I have try a converter with Prolofic chip who does't work with flux control signal of my modem. Totue
  13. T

    USB to SERIAL - any schematics?

    Hello, You can try this https://www.klsi.com/products/USB_standard.htm or this https://www.prolific.com.tw/fr_pl2303.htm Totue
  14. T

    underwater sonar system or fish finder design example needed

    Thanks but i need a reference design that use a piezzo element. totue
  15. T

    underwater sonar system or fish finder design example needed

    I need underwater sonar system or fish finder design example. thanks ***************************************** Please don't reply unless you have useful information to add on this post.Thanks Any other replies are always welcome via PM.

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