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Recent content by maxim10373

  1. M

    Welding automation

    Hello everyone Can you tell me what type of welding is used here as seen in this video? How much kva power is required to spot weld up to 4 mm?
  2. M

    [SOLVED] stepeer motor with arduino control various angle

    I am using a Nema 34 stepper motor and DM556 driver with Arduino And a single push button is also used on the input. What is needed now; A full rotation (360 degrees) should be divided into eight parts when push the button motor run 45 degree angle then stop, When push the button again ...
  3. M

    [SOLVED] IR transmiter and reciever selection guide

    Hi experts, I want to make a fabric centering device. If I want to use IR transmitter and receiver, which type should be used? Any idea which photodiodes will get more range? Regards Maxim10373
  4. M

    Arduino with max7219 error display

    Hello This is a Arduino Nano with Max7219 Eight digit display stop watch project; I got this sketch from the net. There is a small problem in this that it works only after two or three resets after turning on the power. Sometimes it doesn't work at all. Tried many displays of max7219 and it...
  5. M

    [SOLVED] study about the working principle of a surgical table control .

    Hello ! Anyone can explain the working of a surgical table? How to control zero position and which sensor to use. Searched a lot on google but no link is available. thanks Maxim
  6. M

    Solar Battery Charger modification

    Is there any problem in using a 24 volt 10 A solar lead acid battery charger as a normal battery charger if I remove the solar panel and replace it with a 24 volt 10 A smps or transformer? Please reply
  7. M

    [SOLVED] Interfacing LCD with PIC16F877 using CCS C Compiler

    (Another thing: your LCD_DATAx are defined but never used in the whole file. Might be a reason why it doesn't work. LCD_RW_PIN either.) Yes, this could be the problem. I am trying to solve it Thanks for reply 1656669578 1656669603 Everything else is fine but no characters are showing on the...
  8. M

    [SOLVED] Interfacing LCD with PIC16F877 using CCS C Compiler

    Hi Please check the text file. This is done in ccs compiler but nothing is showing on the LCD on proteus simulation .Can you help me? I am using PIC16F877A and 4x20 LCD LM044L . Regards Maxim
  9. M

    connection about trimmer pot

    Hi The following figure shows two types of pots connected . It understands the connection of R 22 but does not understand how R 12 works. Can you help? Which ends of R 12 should be connected? Thanks Maxim
  10. M

    spot welding transformer parameter

    What is the parameter for 2+2 mm (SS) rod spotwelder transformer ? 10kva is inough ? how to calculate the transformer ampere ? please help Maxim
  11. M

    Arduino UNO with DS3231 rtc

    I have attached the text file here. I am using arduino IDE 1.8.16 for compile. DS3231 RTC connect to SCL (A5) and SDA (A4) DS3231.h library also used. The time and date are shown on the screen but it is not the current time and date .I do not understand how to set it up.
  12. M

    Arduino UNO with DS3231 rtc

    Hello I intend to do a project based on the attached file .I do not understand how to set the current time and date . need help maxim10373
  13. M

    mosfet gate drive circuit

    This picture shows a Mosfet gate drive circuit .What is the value of C1 in it? how to find this ? Help me maxim10373
  14. M

    IR led and photo transistor circuit

    hello I have a small project which is need to negative switching. Is negative switching possible with IR sensor ? IR Led with photo transistor circuit readily available .
  15. M

    SMPS Switching transistor getting too hot

    Sorry,I don't have a full schematic

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