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    help peltier module

    If you're new to electronics and want a simpler setup, using MOSFETs might be a good choice.
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    A Little Help for Brainstorming Ideas

    As you are looking forward to making something more perfect than Arduino+obstacle sensor etc, you can move to Raspberry pi+camera+OpenCV. https://www.theengineeringprojects.com/2022/11/social-distancing-detector-with-opencv-in-raspberry-pi-4.html
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    Raspberry Pi execution on power on.

    Are you looking for this topic? https://learn.sparkfun.com/tutorials/how-to-run-a-raspberry-pi-program-on-startup/all
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    3v step down from 12v

    The one in your link is a boost/step up converter. You do not need this. If you want to step down from 12V to 3V, you need a buck converter. That is also called step down converter. You can use an LM2596. You can design a module with LM2596 like this. With the LM2596 Adjustable DC-DC Converter...
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    New Member - Emmanuel Katto

    Nice to meet you.
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    Logisim Digital Circuit

    Are you following this? https://github.com/EbukaAmadiObi/LogiClock
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    can anybody help with this spectrum analyzer?

    How did you manage to fix it?
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    Not sure what sensor to use

    As you mentioned, you need to do calculation in 3-axis only. You can use ADXL335. The sensor is 4 mm × 4 mm × 1.45 mm. It will fit your 19mm dice. Necessary codes and circuit will be found here: https://www.pcbway.com/project/shareproject/ADXL335_Accelerometer_For_Arduino_062eca92.html
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    Help required on Atmega 2560-16AU programming.

    Although you mentioned that the PCB layout was copied from the previous prototype, Please check the hardware. Kindly check if there is a short circuit or broken traces. You can use a multimeter or make a PCB tester like this for your convenience...
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    New project need assistance

    Determine the specific movements your screwdriver application requires. You'll need to know the coordinates (position) where the chuck should start and stop, the speed of rotation, and any pauses or delays. You can load the G-code into Drufelcnc for execution. Make sure that the communication...
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    help with IR2110 chips

    You can check the datasheet. The range of HIN, LIN should be from VSS - 0.3 to VDD + 0.3. VDD is the logic supply. You can also make a DIY 2kVA SMPS 90V 15A HB PFC with IR2110 Mosfet Driver with this IC.
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    About AT29C010A help please

    AT29C010A is a 1 Megabit (128K x 8) 5-volt Only CMOS Flash Memory. Here is the datasheet: https://www.futurlec.com/Datasheet/Memory/AT29C010.pdf You can DESIGN your own EEPROM external memory PROGRAMMER / RECORDER with Arduino...
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    Second WS2812B strip stops MCU

    Since the problem occurs after adding the second LED strip only, I think it's an inadequate power supply problem. I think your whole setup is not getting sufficient voltage and current to light up both neopixel strings. There can be an insufficient memory issue too. Because the Attiny85 has only...
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    Magnifying tool for tiny circuit boards and surface mount?

    Digital microscope 1000x is also helpful.
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    Help

    I think you need to troubleshoot the circuit part by part. Measure voltage with a multimeter at different points and see where the abnormality is taking place. Also, check the continuities of your wires.
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    Nixie Tube Driver Question (w/ Schematic)

    You can also make a nixie tube power supply like this. https://www.pcbway.com/project/shareproject/nixie_tubes_power_supply.html This is an adjustable +90 to 340 VDC PSU to power nixie tubes. It allows an input from 15 to 30 volt DC!
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    Thought for the day .....

    Sad but very true.
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    how to open a gerber file in altium

    I think you will get help from here. https://resources.altium.com/p/pcb-gerber-viewer
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    Ideas - re purpose computer metal chassis into something useful

    You can check this out.
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    LED Update from thread posted in 2007

    Thanks for posting this. Even if you cannot comment on that thread, this post will help many.
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