DHT11 Vcc 5V or 3V3 problems

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I have a DHT11 module that looks exactly like this. I also have raspberry pi zero wh. I have connected the 3.3V (pin1) to the + on the module, and ground (pin6) to the - on the module. Unfortunately this stops my raspberry from turning on. It doesn’t matter if I connect the data cable or not. As soon as those two are connected the power led won’t turn off. If I try to connect them while the raspberry is on it immediately shuts off. (power led goes off, ssh connection is lost) Am I doing something wrong, or do I maybe have a faulty sensor module here? How do I even start to check for that?

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  • 1
    I didn’t look at your picture (I am not about to download ANY file) – but this is unlikely to help. Paste any info ito your Question.Tell us WHAT module and HOW YOU connected it. Your description is unclear. PS try writing in paragraphs. – Milliways 3 hours ago
  • Hello @blues, welcome and nice to meet you. Ah, let me see. There is a couple of fatal newbie traps related to DHT11. The most common mistake is powering DHT11 with 5V. The poor newbie might have followed tutorials for Arduino with 5V logic, and therefore using 5V to power DHT11 has no problem. However, for Rpi with 3V3 logic GPIO pins connected to 5V powered DHT11 might cause the “latch up” problem and fry the Rpi. The connect and safest way is to power DHT11 with 3V3. In other words, NEVER POWER DHT11 with 5V, though it might work, but sooner or later would fried the Rpi./ to continue, … – tlfong01 1 hour ago   
  • The following posts explain the problem in more details: References: (1) “Rpi3 might have been fried by wrongly connected DHT11 temparature sensor”: raspberrypi.stackexchange.com/questions/96560/… (2) :Rpi seemed fried by wrongly connected DHT11 sensor”: raspberrypi.stackexchange.com/questions/97949/…. Have a great day. Yours sincerely, Ta and Cheers. – tlfong01 57 mins ago   

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