Linked Questions

1 vote
2 answers

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 ...
ciuly's user avatar
  • 131
2 votes
1 answer

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 ...
Edrean Ernst's user avatar
3 votes
2 answers

Rpi3 might have been fried by wrongly connected DHT11 temparature sensor

I just bought a package of sensors online, a few things were really easy to set up, but the DHT11 (3 pin version) temperature and humidity sensor was giving me problems. Here's what I did: Following ...
rajan's user avatar
  • 141
0 votes
4 answers

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 ...
Andrea Bianchi's user avatar
2 votes
1 answer

how can I get a fixed sampling rate of 1 ksps when interfacing MCP3008 (10 bit ADC) with raspberry pi using SPI?

Whenever I take data from the MCP3008, my sample rate keeps changing. Sometimes it's 24ksps, sometimes 200sps. I want to keep this fixed. Python Code for SPI communication on raspberry pi: import ...
Supriya Asutkar's user avatar
1 vote
1 answer

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 ...
lane.maxwell's user avatar
0 votes
1 answer

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 ...
S1r-Lanzelot's user avatar
2 votes
1 answer

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 ...
blues's user avatar
  • 151
1 vote
2 answers

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 ...
jgreenb's user avatar
  • 11
0 votes
1 answer

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 ...
gatorback's user avatar
  • 637
1 vote
1 answer

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'...
Ashutosh Tiwari's user avatar
1 vote
0 answers

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 ...
shreeja kumbargoudar's user avatar