Recent content by rainyliveshere

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  1. R

    Discomfort Alert

    Not really for the number of I/O pins. I was considering it for modular connections. The sensor could remain on a separate board. The main PCB would contain the controller. The display and buzzer could also be separate. A removable connection could simplify assembly and testing. But I'm not sure...
  2. R

    Discomfort Alert

    Hello. In 2019, I made this circuit using Seedstudio’s Grove-GSR sensor. I named it ‘Discomfort Alert’. This circuit measured the output of the sensor and showed it in the OLED display. When the output value crossed a threshold value, the buzzer made a sound. It made a sound when the person...
  3. R

    Same voltage but is the current output different?

    Which one has the bigger output current? One 3V CR2032? or Two of these 1.5V LR43 batteries in series?
  4. R

    RF-ID advice needed

    Use 125 kHz RFID for your railway application. Short read ranges help prevent unwanted detections. Put unique RFID tags on each train. Install readers at each monitored track location. One reader per location simplifies wiring and troubleshooting. Use ESP32 boards to send detection data. Google...
  5. R

    ESP32-S3 Weather Monitoring System with LVGL

    BTW, where did you buy the ESP32-S3 Smart Display from?
  6. R

    tek 2712 identification of a destroyed component

    Did you check this manual already? https://download.tek.com/manual/070813004.pdf
  7. R

    Arduino Nano built in RGB LEDs won't turn off

    Which particular board are you using? Any link?
  8. R

    How good is Spain for Embedded System Engineers?

    Thanks a lot for helping.
  9. R

    How good is Spain for Embedded System Engineers?

    Thank you. Spanish forums are available but I'm afraid that it is not easy to find one where lots of electrical/electronics/embedded system engineers hang around.
  10. R

    How good is Spain for Embedded System Engineers?

    To get rid of the toxicity of social media, I have been trying to find solace in some other things. I have been learning Spanish for last a few months. I have no opportunity in my hand to go to Spain. Still, I started learning this language just to detoxify my mind. I am loving it. Then an...
  11. R

    Electronic device/solution idea

    Yeah true but there was no harm in hoping that somebody might come with a better idea.
  12. R

    Electronic device/solution idea

    I think about wearables that will be able to sense danger by monitoring scream level, heart rate etc. If a threshold level is crossed, it will be able to produce a very harsh alarm and make an auto call to the national emergency number and send an alert to the family members. However, the...
  13. R

    Electronic device/solution idea

    I am sorry for my grammatical mistakes. I really want to edit the question but I cannot.
  14. R

    Electronic device/solution idea

    That is for offenders after committing the crimes. I am talking about something that will rescue/protect targets before they become victims. Ted Bundy was executed in electric chair. He got what he deserved but that neither brought his victims back, nor stopped other offenders.
  15. R

    Electronic device/solution idea

    Yes. You got it right.
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