Questions tagged [ds18b20]
DS18B20 is a digital 1-wire thermometer chip that can be connected to Raspberry Pi GPIO pins.
111 questions
0 votes
2 answers
91 views
Autocorrection of 1 wire system
I have 11 DS18B20 sensors distributed through my house checking temperatures of all rooms, as well as outside temperature. I check and data log from these every 5 minutes and have been doing so for ...
0 votes
0 answers
73 views
The DS18B20 temperature sensor not visible by the Raspberry Pi in the Proteus
I do the laboratory work from the site of the University of Cambridge (https://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/temperature/), but using the Proteus only. I did the schematic (VCC = 3....
- 101
-1 votes
1 answer
68 views
Running MicroPython on a PicoW and there is a large discrepency witht he temperature output of a DS18B20
I have a PicoW, and am running MicroPython, and have copied code so I can monitor temperature using a DS18B20. I note there was a thread on this topic, but I didn't see an outcome.... The code I have ...
- 17
1 vote
1 answer
148 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......
- 45
0 votes
1 answer
60 views
Will a DS18B20 Adapter Module for Arduino work on Raspberry Pi 4B?
I am new to electronics and the basics are rather beyond me. Excuse me if I ask a simple question. I understand that usually, Arduino adapters are not compatible with Raspberry Pi, but this looks like ...
- 103
0 votes
0 answers
32 views
DS18B20 not detected on Raspberry Pi [duplicate]
In ls /sys/bus/w1/devices/ I only have w1_bus_master1 I have added w1-gpio and w1-therm in /etc/modules I have also added dtoverlay=w1-gpio in /boot/config.txt I am not sure what is wrong. The RP 4 ...
- 1
0 votes
1 answer
204 views
Vcc for DS18B20 on RPI
I have setup test for DS18B20 sensor with Raspberry Pi to find out whether it works with 3,3V and 5V respectively as advertised. I have found that it is working on both voltages, but temperature ...
- 117
2 votes
1 answer
779 views
Pico Arduino DS18B20 OneWire
I am failing to read a DS18B20 with a RaspberryPi Pico programmed with Arduino. I found several examples using MicroPython, however I want to do it with Arduino using the 'Raspberry Pi Pico/RP2040' ...
- 129
1 vote
1 answer
112 views
DS18B20 not showing up Pi 400
I have a raspberry pi 400 running ubuntu server. I have a DS18B20 with a 4.7k resistor connected from the power to the data wire. I boot up the pi and run the sudo modprobe w1-gpio and sudo modprobe ...
- 34
1 vote
0 answers
343 views
DS18B20, Pico W, 7 segment display and Micropython
My goal is to connect 2 DS18B20 sensors to a Pico W and display an indoor and outdoor temperature on a 4 digit seven segment display. My problem is it crashes after 20 or so iterations. Thanks for any ...
- 11
1 vote
1 answer
159 views
DS18B20 randomly dissapear from the devices list
I have 4 DS18B20 sensors connected to a Raspberry Pi 4, with a resistor of 10kOhm. All of the sensors randomly disappears from the w1/devices. In config.txt the dtoverlay=w1-gpio as well as the ...
- 11
2 votes
1 answer
2k views
DS18B20 OneWire Library with Raspberry Pi Pico W and Micropython
Good day, I am using a Raspberry Pi Pico W with a temperature sensor among other things. I tried finding code online to make the temperature sensor work and it returns the following error. Found DS ...
- 23
1 vote
1 answer
1k views
1-Wire internal pullup isn't enabled on boot, but can be enabled after boot
On a Pi 4 I have the following lines in /boot/config.txt: dtoverlay=w1-gpio gpio=4=op,pu This should enable 1-wire on the default GPIO pin, which is 4, and then enable the internal pullup resistor. ...
- 131
1 vote
1 answer
264 views
Dallas ds18b20 stopping randomly
I have an issue with Dallas 18b20: randomly I loose connection (serial number of sensors disappear). I have two sensors that have been connected to Raspberry, with 4k7 resistor. I didn’t have problems ...
- 11
0 votes
2 answers
3k views
multiple ds18b20 raspberry pico
with a raspberry pi zero you use the temp sensor ids with python code. Not sure how to add 2 of the same DS18B20 sensor to pico. I am pissed at myself as I damaged the pi zero onewire input on the ...
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