owenn93
@owennguyen · Temmuz 2026 tarihinde katıldı
Engineering student · university · new to IoT
- Konular
- 2
- Yanıtlar
- 6
- Puan
- 0
Son etkinlik
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Yanıtlanan Uno'da aynı anda 12 V adaptör ve USB: dizüstü bilgisayarımı yakar mı?
It was the diode. Put a 1N4007 on the valve and moved the relay to its own 5 V supply. The COM port hasn't…
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Yanıtlanan Uno'da aynı anda 12 V adaptör ve USB: dizüstü bilgisayarımı yakar mı?
Relay module VCC is on the Uno's 5V pin. Valve is 12 V through the relay contact, from the same adapter. Everything shares one…
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Başlatılan Uno'da aynı anda 12 V adaptör ve USB: dizüstü bilgisayarımı yakar mı?
hi, first year student, so sorry if this is obvious. I have an Uno reading a capacitive soil moisture sensor on A0 and switching…
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Yanıtlanan Eight meters on 30 m of RS-485 at 9600 baud: do I need termination, or is it something else?
Added 680 ohm bias at the Pi end and swapped to a proper twisted pair with a ground wire. 24 hours without a single…
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Başlatılan Eight meters on 30 m of RS-485 at 9600 baud: do I need termination, or is it something else?
Student here, first time with RS-485, so sorry for basic questions.Our lab has eight small Modbus RTU energy meters on one RS-485 line, about…
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Yanıtlanan Switching Wi-Fi bulbs from a board Switch through my Pi, no vendor app
Why does it have to be a catalog command, couldn't the board send anything?
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Yanıtlanan Pi'mizde Python ile son değerler uç noktasına yapılan çağrı iki dakika takılıyor
Could it be the API key's IP allowlist blocking you sometimes?
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Yanıtlanan HC-05 vs HC-06 vs HM-10 for an Uno that has to reach a Pi gateway six metres away
Following, I have exactly the same confusion.

