Linked Questions
15 questions linked to/from Rpi3 might have been fried by wrongly connected DHT11 temparature sensor
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How can Rpi GPIO read the 12V output signal from a Guardline Security Alarm?
My new Guardline Security Alarm can send a 12-volt output signal to an accessory device.
I would like to send that signal to my Raspberry pi and have it send an email to my iPhone.
I bought a SMAKN Dc/...
- 11
1
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2
answers
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Command/control latching relay using gpio pin only
first off, I'm a noob when it comes to hardware/electronics. Barely started and not planning on getting too deep in it.
Now, what I am trying to do may not be possible, hence this question.
I have ...
- 131
2
votes
1
answer
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1-wire device not detected
I'm having trouble getting a 1-wire sensor to be detected on my Raspberry Pi Model 3 B+. The sensor is this temperature and humidity sensor.
I have wired the red wire to 3.3V, the black wire to ...
- 123
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4
answers
535
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What happens if I connect +5 V input to rasberry GPIO ports?
I've read that Raspberry GPIO ports can't withstand +5v and works only with +3.3 v, and that +5v could potentially permanently damage the port? But what does it mean exactly? Is that specific channel ...
1
vote
2
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Rpi seemed fried by wrongly connected DHT11 temperature sensor
I'm doing a project for a school assignment and have some issue with my circuit. When I connected the breadboard to pi and to power, everything was working, I could read data from sensors and looked ...
- 13
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2
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DHT 11 - Sensor with Raspberry Pi
OK, This is a little frustrating as I am JUST trying to get the temperature/Humidity readings on my DHT 11 sensor with Raspberry pi 4 and I am unable to do so. Please see below
https://www....
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votes
1
answer
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Connecting DHT11 sensor
I want to use the DHT11 sensor with my Raspberry PI 2 Model B.
I'm using pin#01 for the VCC, pin#39 for GND, but I don't know which pin should I use for DATA? Should I enable some GPIO ports to use ...
1
vote
1
answer
546
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Issue with Pi 4 and 1wire
I've got a Pi 4 and went to hook up a couple sensors, the first being a DHT11, it's working fine. The second being a DS18B20, on the 1-wire interface (using the standard GPIO pin 4). The circuit is ...
- 113
0
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1
answer
454
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GPIO pin turns off immediately when switch is connected, turns back on when disconnected
I have no problem turning on and off pins on my rpi4 (using both gpio on the terminal and Gpiozero with python3) however when I connect a wire (which is connected to a switch) to the pin... it turns ...
- 111
2
votes
1
answer
234
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Connecting DHT11 module kills raspberry
I have a DHT11 module that looks exactly like the image below. I also have raspberry pi zero wh.
I have connected 3.3V (pin1) to the + on the module.
GND (pin6) to the - on the module.
I was carefull ...
- 151
0
votes
1
answer
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DHT 11 Sensor Voltages
GOAL
A 3-Wire DHT 11 of unknown pedigree is to be connected to a Raspberry Pi:
SDA GPIO
The goal is to take "due diligence" and avoid frying an rPi. Thank you
RESOURCES
Ada Fruit's 4-pin DHT11 ...
- 637
1
vote
2
answers
237
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Only a solid red light and no ethernet lights after broken script
Model: Pi 3 B+
I wrote a script using GPIO pins and I'm fairly certain there was no way for it to cause a short circuit. I ran the script, and was unable to stop it using ctrl+c, so I pulled the plug ...
- 11
1
vote
1
answer
191
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DHT11 Temprature sensor makes raspberry pi go crazy!
I am trying to use the DHT11 sensor temprature and humidity sensor with my Raspberry Pi 4B. When I connect the sensor with my Raspberry Pi and turn it on, the red LED on it starts blinking and it can'...
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0
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Combining programs dht11 and soil moisture sensor
Hey I'm doing a project and I need to combine programs of dht11 sensor and soil moisture sensor..but they're in different directories and their libraries also. I'm not able to run them simultaneously ...
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0
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elecrow sensors on i2c serial line
I have elecrow's sensors like this one that I want connect to i2c hub and use it based on the address.
first I'm trying to set my pi 3b+ to recognize at least one of them connected directly.
I'm on ...
- 117