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bidrohini last won the day on February 21

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  1. Hi, have you tested it by yourself?
  2. I think you are right. Because I never came across such a strange marking on ICs before.
  3. Thanks for sharing the design and the video. I came across this design and found it good too: https://www.pcbway.com/project/shareproject/power_supply_0_30V_2mA_3A_version2_28ca8ff0.html But your power supply has a bigger voltage and current rating I can see.
  4. You can take a look at the Klein Tools VDV512-101 Cable Tester.
  5. The LEDs are 12V LEDs, right? If you use a 9V battery, I think the LEDs will not turn on properly. You may just see a faint glow.
  6. You can add a decoupling capacitor. Sometimes, the output waveform can be clipped due to noise in the power supply. Adding a decoupling capacitor between the power supply and the ground can help reduce the noise and improve the output waveform.
  7. I think it's not possible to give a good answer without knowing which specific DXP softaware you're using and what error you're facing.
  8. Bypassing the Hall sensor is not recommended. You can check the manual for instructions on how to calibrate the sensor.
  9. For making a holo projector, you can follow this video: You can also take a look here to know how to install an outdoor projector: https://www.theengineeringprojects.com/2018/09/how-to-install-outdoor-projector.html Y
  10. Music ICs like UM66 are avaiable. However, you cannot customize them. UM66 can play only the music that is already set by the manufacturer. If you want to play something of your own choice, I think you can move to Arduino related projects. Using waveshare VS1053B music shield. https://www.waveshare.com/wiki/Music_Shield Here is another music playing PCB based on Arduino Nano that you may like to see: https://www.pcbway.com/project/shareproject/Musical_Christmas_Reindeer_0cf8bc23.html
  11. Good to know that it is working. I always used to bootload Atmega328P with a full fledged Arduino UNO board. Then I added the necessary crystal oscillator, capacitors and resistors along with the chip to the breadboard. Finally, I connected an FTDI module to upload code to the Atmega328P from my laptop.
  12. To prove the reliability or validity of an automatic calibration performed on an analytical balance, you can check the accuracy of the balance by comparing its readings with a known reference weight. This will give you an idea of the accuracy of the balance after the automatic calibration.
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