Linked Questions

3 votes
2 answers
284 views

Do most GPIO sketches revolve around processing operating system support (not direct support like arduino)?

I am relatively new to the Raspberry PI platform and more experienced with Arduino. I have noticed in the examples for Infrared Receiving and 1-Wire protocol that the Python sketches to interact with ...
Startec's user avatar
  • 297
3 votes
1 answer
240 views

ds18b20 + USB serial adapter

I have this "QinHeng Electronics HL-340 USB-Serial adapter" and a couple of DS18B20 temperature/humidity sensor but I can't get to read data using digitemp. Also tried with this #include <stdio.h&...
rmorelli74's user avatar
2 votes
3 answers
2k views

Does the DS18B20 1-wire temperature sensor ID change with different Raspberry Pi's?

I have set up 3 temperature sensors (DS18B20) and connected them to what I believe is a Raspberry Pi 4. I have only been using the Pi 4 for easy testing before I move everything over to the Pi zero ...
ViperSniper0501's user avatar
2 votes
1 answer
2k 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 ...
Edrean Ernst's user avatar
2 votes
1 answer
562 views

What is the correct hardware required to connect multiple analog sensors to a Raspberry Pi 4?

I've been an avid Bonsai enthusiast for some time, and have always wanted to automate some of the day to day tasks (and get some data logging in the process). I'd like to be able to detect: soil ...
Saeven's user avatar
  • 141
2 votes
2 answers
4k views

Rpi3B+ Python DS2482 I2C to 1-Wire Bridge Connecting 10+ DS18B20 Temperature Sensors Using 30 Metres Long CAT5e Cables

I'm about to build a heating control with DS18B20 1Wire-sensors and the Raspberry Pi 3 Model B+. For the 1Wire-interface I'm using the DS2482-800 multi-channel busmaster (more precisely this pre-...
simsnWolke's user avatar
1 vote
3 answers
785 views

DS18B20 Temperature Sensor's Power Supply and Rpi's Pull-Down-GPIO-Pin Sinking Current Requirements

I have a RPi zero W and am reading four ds18b20 temperature sensors (with a 10K ohm resistor between the data and vcc line). Now and then I keep getting "SensorNotReadyError" from the sensors. My ...
Jake B.'s user avatar
  • 113
1 vote
1 answer
560 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 ...
lane.maxwell's user avatar
1 vote
1 answer
3k views

Connecting multiple sensors to Raspberry Pi 4 B

I have a Raspberry Pi Project in mind but I'm completely new to this matter and have literally no idea. My plan is to create a transportable Weather Station (which includes a temperature sensor, air ...
dmrthis's user avatar
  • 11
1 vote
1 answer
106 views

Why don’t GPIO lines work for DS18B20 Sensor?

Recently, I bought a DS18B20 temp sensor to monitor my fermentation temp of my beer and assumed I could just hook up the power, ground and data to their respective pins on the Pi but I could never get ...
coco's user avatar
  • 13
1 vote
1 answer
298 views

DS18B20 Temperature Sensor RJ-x

I am looking to create a complete temperature humidity sensor system with 72 DS18B20 sensors. I am aware that each sensor receives it's own unique identifier and you are able to daisy chain them ...
Philoxopher's user avatar
1 vote
1 answer
60 views

Sensor DS18B20 randomly not detected by Raspberry Pi 3b+

I have a DS18B20 temperature sensor connected to a Raspberry Pi 3b+. I created a simple Python program to monitor the temperature of my heating system. The program works very well....when it works......
Luca Scalvi's user avatar
1 vote
0 answers
426 views

DS18B20 stopped recently

I have read a few posts here on my issue, notably DS18B20 not detected by Raspberry Pi, but unfortunately none of the suggestions worked for my issue. I am seeking advice on additional troubleshooting ...
Matha Goram's user avatar
1 vote
0 answers
228 views

DS18b20 not detected on Linux raspberrypi 4.19.75-v7

We did following steps: Installed Linux version 4.19.75-v7+ on SD card. Have two DS18B20 connected to the pi (via terminal block). We are using 3v3 ground and GPIO 4.Enabled 1 wire 4.7K Ohm resistor ...
Rheal 's user avatar
  • 11
0 votes
2 answers
1k views

Reading analog value Raspberry Pi

I am a newbie with the Raspberry Pi. I want to measure Temperature Reading in 12/16 bit resolution. can someone guide me how CKT should be designed and How can read value using software. usually ...
Ajit N's user avatar
  • 37

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