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  1. B

    Parking sensor circuit board

    Maybe it's possible to modify. But without any circuit diagram or PCB layout, it's more likely to make mistakes.
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    Could a Raspberry Pi usefully help me create a wind direction meter with physical/analogue face and hands...

    Here I found the Arduino sample code and library: https://wiki.dfrobot.com/SKU_SEN0482_RS485_Wind_Direction_Transmitter_V2 For Raspberry Pi, I think you will not find an existing library.
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    How long does it take to charge a 500mAh battery with 5V 80mA?

    Charging time (in hours) = (Battery capacity in mAh) / (Charging current in mA) Charging time = 500mAh / 80mA ≈ 6.25 hours The formula doesn't account for factors like charging efficiency, losses, and variations in solar cell output due to weather conditions. In real-world scenarios, the...
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    Absolute Pressure Sensor For SPL Metering

    Difficult to say without any datasheet or user-manual.
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    Battery Protection from alternator.

    From the datasheet, it looks like you cannot preset the cut-off voltage to 28.5V. Anyway, to be more sure it's better to contact victron energy. I can see their email id given in the datasheet.
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    Quality Pot for Servo

    I think the issue is in the wiring. usually any ordinary pot works. If you want to be sure, you can test the POT separately.
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    Lowering AC Motor RPM's

    You can use an Arduino and a motor driver like the L298. The Arduino UNO has some PWM pins. If you connect them to the Enable pins of the L298 and program the Arduino accordingly, you will be able to control the speed of your motors...
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    homemade 12v smoke machine continuous

    For turning it on/off automatically, you will need to use an Arduino. If you do not want to use a battery, you can use a 12V adapter.
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    Poor connection made when flexing the PCB

    That means there is a broken trace or via. Here you'll get some troubleshooting guidelines: https://www.mclpcb.com/blog/common-flex-pcb-issues/
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    ATMEL 89C51RD2 ISP, HEX file programming problem

    You can post it to the Atmel forum: https://www.avrfreaks.net/
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    High-temperature microcontroller

    You can take a look at STM32H743VIT6 https://www.st.com/resource/en/datasheet/stm32h743vi.pdf
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    Identify a PCB

    I think posting this to elector forum may help. If it is thier pcb, they are supposed to know more about it.
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    Web site down?

    I could not post either.
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    Education & Jobs in Electronics

    Yeah. You're right sir. I am not saying that it has to be somebody's ultimate career goal. But it can be the beginning of the career. I am from south-east Asia. When working as an Engineer, I had many teenage colleagues. They were from poor families. They used to work as technicians while...
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    Education & Jobs in Electronics

    Yeah. You're right sir. I am not saying that it has to be somebody's ultimate career goal. But it can be the beginning of the career. I am from south-east Asia. When working as an Engineer, I had many teenage colleagues. They were from poor families. They used to work as technicians while...
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    Education & Jobs in Electronics

    Salary depends on the country you live. A diploma in Electronics Engineering is usually the minimum requirement to get an Engineering job. For the job of a technician for repairing, servicing etc. a few short courses are enough.
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    DIY Kindle Remote Page Turner

    Here is another one. This is also old. You can see and compare which one is more convenient for you: https://www.hackster.io/news/remote-controlled-kindle-page-turner-5526daa9d70a
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    Problem in charging 450v 680uf capacitors at the same time

    Make sure your inverter and power supply can provide enough current to charge all five capacitors in parallel.
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    Radisys EPC-6a re-flash

    I think it's better to contact the manufacturer of EPC-6a directly.
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    Need help with Easy EDA stuff

    You can post your question to the easyeda forum if any solution from here does not work: https://easyeda.com/forum/category/2
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