Recent content by danadak

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    How Do You Confirm a Suspected Short on a PCB?

    Also use a low ohm tester that can help with locality on a board. https://www.elektormagazine.com/news/circuit-a-diy-pcb-short-finder https://hackaday.io/project/203648-lysvolt-microohm-4-wire-precision-ohmmeter https://www.eevblog.com/forum/projects/diy-low-ohm-meter-schematic/
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    What to study for a semiconductor testing course admission test?

    Not sure if this will help but take a look : https://chatgpt.com/s/t_6a9dc6a75f748191bca1dce2b898798c https://chatgpt.com/s/t_6a9dc734705c8191908b3d59348ad0ab
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    Recommended ways to program Uno board

    If you have to drive power in the 0-10V area consider using monolithic OpAmps : https://chatgpt.com/s/t_6a94974a48c081919dd65dac1a49a506https://www.apexanalog.com/products/matrix_high-current.html There are also simple methods for power boosting standard OpAmps ...
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    Recommended ways to program Uno board

    Using a PWM as DAC : https://www.nxp.com/docs/en/application-note/AN14520.pdf https://www.ti.com/lit/an/sloa030a/sloa030a.pdf Page 6 Helpful to pick a RRIO OpAmp.
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    Help with Mura meter 80M Wiring

    You can see where possibly red wire to middle jack. You could try this out and try a 1.5 V battery measurement to see if it makes sense, the reading..... Cant identify where the frayed end of red wire broke off ? Its only so long and so can only reach a certain number of connections. And using...
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    Help with Mura meter 80M Wiring

    What is the model # of the meter ?
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    Recommended ways to program Uno board

    The uno board cant generate 0-10V for starters. You would need to amp up a pwm or DAC output for that purpose. Its 6 channels limited to 8 bit resolution. An ESP32 can give you 6 PWMs, up to 20 bits, that you could use as DACs, but you have not stated any needed accuracy/resolution specs for...
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    Is AI making any impact on embedded software development?

    I am using it for IOT work. I am not using their tools yet, just write a simple doc with expectations and design goals, and then proceed with simple mod chats. ChatGPT so far but plan on using Claude. ESP8266, ESP32, Networking, and simple embedded interface to sensors and the like.
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    Discomfort Alert

    For small number I/O Molex might be a good choice. But we do not know enough about bandwidth of communication I/O and sensor interface and other anticipated connections. If you need a lot of connector insertions/removals thats a consid- eration as well. As well as DC I and V considerations.
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    Discomfort Alert

    The threshold value could be simple use of A/D to measure a pot of some kind, a simple knob based setting control. Why edge connector, you have a lot of I/O pins in design ? What is the connector connecting ? As far as processor choice, consider a ESP32, Like ESP32C3 Supermini board. Reason is...
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    Burned traces repair help needed

    This manual might help, https://www.dropbox.com/scl/fi/ujze7jeltdg21vbyluot9/yamaha-mx12-4.pdf?rlkey=hejsu6mf3mddbentmpbppo9jg&st=6i6sczin&dl=0
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    Same voltage but is the current output different?

    Compare the datasheets : https://www.jauch.com/downloadfile/5ef1edcfd15cf1c9921d36c851eb4c34f/cr2032.pdf https://www.microbattery.com/pub/media/tech-specs/Murata/LR43-DATASHEET.pdf
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    Arduino Nano built in RGB LEDs won't turn off

    Also be aware modern LEDs even with uA current in them will glow. So depending on drive circuit one can have this problem. In your case you only have leakage so should be OK on this.
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    Arduino Nano built in RGB LEDs won't turn off

    What does schamtic look like from pin to LED and its power source ?
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    tek 2712 identification of a destroyed component

    Your picture not well focused to help you determine what it is. Pre explosion. How many electrical connections to it ? Given a liquid of some sort internal to it could be a battery or a classic electrolytic .... The liquid may be caustic/acidic so cleaning the board imperative so it does not...
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