Linked Questions

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3answers
1k views

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 ...
1
vote
3answers
1k views

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/...
2
votes
1answer
919 views

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 ...
0
votes
2answers
845 views

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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2answers
360 views

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 ...
0
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1answer
753 views

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
1answer
364 views

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 ...
2
votes
1answer
110 views

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 ...
0
votes
1answer
171 views

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 ...
1
vote
2answers
139 views

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 ...
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2answers
49 views

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 ...
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1answer
106 views

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 ...
0
votes
1answer
135 views

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'...
1
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0answers
64 views

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 ...
0
votes
0answers
24 views

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 ...