#ds18b20 — Public Fediverse posts

🌡️ Thermoservice v0.8.0 released!

Temperature sharing service for DS18B20 sensors — now with Home Assistant integration.

✨ New in v0.8.0:
• Home Assistant push integration (thermoservice-homeassistant package)
• Systemd timer pushing temperature every 60s
• Modern HA rest: sensor config with unique_id
• Ansible deployment playbook for automated setup
• Temperature precision fix (4 decimal places)

📦 .deb packages attached to the release.

https://github.com/VitexSoftware/thermoservice/releases/tag/v0.8.0

#RaspberryPi #HomeAssistant #DS18B20 #IoT #Debian #OpenSource #Temperature #Zabbix

J'ai une #idee ! (oui : encore)
J'ai une raspi5 qui fait home cinema
mais je manque de retours de température dans la maison 🤔
Alors j'ai des #DS18B20 #1wire, et la raspi a des #gpio
Bon jusque-là : ok
Mais la raspi chauffe, et des fils + un truc format transistor qui traîne (oui : encore), bein c'est moche, et ça va mesurer le dégagement de la raspi.
Alors je me suis dit :
il faut le surélever, et trouver un design sympa.
Conclusion : une main qui lève le doigt en #3D avec le capteur logé au bout du doigt.
Et en cas de question :
"Mais c'est quoi ce truc !?"
- c'est un thermomètre : c'est pour mesurer la température au doigt mouillé" 🤭 😂
#DIY

J'ai une #idee ! (oui : encore)
J'ai une raspi5 qui fait home cinema
mais je manque de retours de température dans la maison 🤔
Alors j'ai des #DS18B20 #1wire, et la raspi a des #gpio
Bon jusque-là : ok
Mais la raspi chauffe, et des fils + un truc format transistor qui traîne (oui : encore), bein c'est moche, et ça va mesurer le dégagement de la raspi.
Alors je me suis dit :
il faut le surélever, et trouver un design sympa.
Conclusion : une main qui lève le doigt en #3D avec le capteur logé au bout du doigt.
Et en cas de question :
"Mais c'est quoi ce truc !?"
- c'est un thermomètre : c'est pour mesurer la température au doigt mouillé" 🤭 😂
#DIY

J'ai une #idee ! (oui : encore)
J'ai une raspi5 qui fait home cinema
mais je manque de retours de température dans la maison 🤔
Alors j'ai des #DS18B20 #1wire, et la raspi a des #gpio
Bon jusque-là : ok
Mais la raspi chauffe, et des fils + un truc format transistor qui traîne (oui : encore), bein c'est moche, et ça va mesurer le dégagement de la raspi.
Alors je me suis dit :
il faut le surélever, et trouver un design sympa.
Conclusion : une main qui lève le doigt en #3D avec le capteur logé au bout du doigt.
Et en cas de question :
"Mais c'est quoi ce truc !?"
- c'est un thermomètre : c'est pour mesurer la température au doigt mouillé" 🤭 😂
#DIY

J'ai une #idee ! (oui : encore)
J'ai une raspi5 qui fait home cinema
mais je manque de retours de température dans la maison 🤔
Alors j'ai des #DS18B20 #1wire, et la raspi a des #gpio
Bon jusque-là : ok
Mais la raspi chauffe, et des fils + un truc format transistor qui traîne (oui : encore), bein c'est moche, et ça va mesurer le dégagement de la raspi.
Alors je me suis dit :
il faut le surélever, et trouver un design sympa.
Conclusion : une main qui lève le doigt en #3D avec le capteur logé au bout du doigt.
Et en cas de question :
"Mais c'est quoi ce truc !?"
- c'est un thermomètre : c'est pour mesurer la température au doigt mouillé" 🤭 😂
#DIY

So I stuck three #ds18b20 temperature sensors in our boiler. An #esp8266 and #esphome made them usable in #HomeAssisstant. What I couldn't have guessed is how much heat is transferred via the wire. When just stuck in a drilled hole through the insulation the temperature was 50⁰C. I then dug out the insulation and taped the sensor and some wire directly on the steel and foamed the cavity shut, the actual temperature is 73⁰C!

So I stuck three #ds18b20 temperature sensors in our boiler. An #esp8266 and #esphome made them usable in #HomeAssisstant. What I couldn't have guessed is how much heat is transferred via the wire. When just stuck in a drilled hole through the insulation the temperature was 50⁰C. I then dug out the insulation and taped the sensor and some wire directly on the steel and foamed the cavity shut, the actual temperature is 73⁰C!

So I stuck three #ds18b20 temperature sensors in our boiler. An #esp8266 and #esphome made them usable in #HomeAssisstant. What I couldn't have guessed is how much heat is transferred via the wire. When just stuck in a drilled hole through the insulation the temperature was 50⁰C. I then dug out the insulation and taped the sensor and some wire directly on the steel and foamed the cavity shut, the actual temperature is 73⁰C!

So I stuck three #ds18b20 temperature sensors in our boiler. An #esp8266 and #esphome made them usable in #HomeAssisstant. What I couldn't have guessed is how much heat is transferred via the wire. When just stuck in a drilled hole through the insulation the temperature was 50⁰C. I then dug out the insulation and taped the sensor and some wire directly on the steel and foamed the cavity shut, the actual temperature is 73⁰C!

So I stuck three #ds18b20 temperature sensors in our boiler. An #esp8266 and #esphome made them usable in #HomeAssisstant. What I couldn't have guessed is how much heat is transferred via the wire. When just stuck in a drilled hole through the insulation the temperature was 50⁰C. I then dug out the insulation and taped the sensor and some wire directly on the steel and foamed the cavity shut, the actual temperature is 73⁰C!

My smallscale reliability test for the good old watertight #DS18B20 temperature probes. I am comparing 4 different ones. All are being plotted into #InfluxDB. Let's see which survive and which are outliers. I'll report back in a week or so.

#electronics #AliExpress #LCSC #LowQuality

An ATTiny GPU Fan Controller That Sticks https://hackaday.com/2025/08/02/an-attiny-gpu-fan-controller-that-sticks/ #computerhacks #graphicscard #ATtinyHacks #RepairHacks #MiscHacks #attiny85 #DS18B20 #attiny #radeon #News #12v #fan #gpu

An ATTiny GPU Fan Controller That Sticks - When your GPU fan goes rogue with an unholy screech, you either shell out for a ne... - https://hackaday.com/2025/08/02/an-attiny-gpu-fan-controller-that-sticks/ #computerhacks #graphicscard #attinyhacks #repairhacks #mischacks #attiny85 #ds18b20 #attiny #radeon #news #12v #fan #gpu

Freezer Monitoring: Because Ice Cream Is a Dish Best Served Cold https://hackaday.com/2025/07/21/freezer-monitoring-because-ice-cream-is-a-dish-best-served-cold/ #RaspberryPiZero2W #prometheus #homehacks #DS18B20 #grafana

Freezer Monitoring: Because Ice Cream Is a Dish Best Served Cold - [Scott Baker] wrote in to let us know about his freezer monitor.
After a regrettab... - https://hackaday.com/2025/07/21/freezer-monitoring-because-ice-cream-is-a-dish-best-served-cold/ #raspberrypizero2w #prometheus #homehacks #ds18b20 #grafana

Keep Track of the Compost with LoRaWAN https://hackaday.com/2025/06/23/keep-track-of-the-compost-with-lorawan/ #temperaturesensor #classichacks #CubeCellAB01 #solarpanel #homehacks #compost #DS18B20 #LoRaWAN

Keep Track of the Compost with LoRaWAN https://hackaday.com/2025/06/23/keep-track-of-the-compost-with-lorawan/ #temperaturesensor #classichacks #CubeCellAB01 #solarpanel #homehacks #compost #DS18B20 #LoRaWAN

Keep Track of the Compost with LoRaWAN https://hackaday.com/2025/06/23/keep-track-of-the-compost-with-lorawan/ #temperaturesensor #classichacks #CubeCellAB01 #solarpanel #homehacks #compost #DS18B20 #LoRaWAN

Keep Track of the Compost with LoRaWAN https://hackaday.com/2025/06/23/keep-track-of-the-compost-with-lorawan/ #temperaturesensor #classichacks #CubeCellAB01 #solarpanel #homehacks #compost #DS18B20 #LoRaWAN

Keep Track of the Compost with LoRaWAN - Composting doesn’t seem difficult: pile up organic matter, let it rot. In practice... - https://hackaday.com/2025/06/23/keep-track-of-the-compost-with-lorawan/ #temperaturesensor #classichacks #cubecellab01 #solarpanel #homehacks #compost #ds18b20 #lorawan

Keep Track of the Compost with LoRaWAN - Composting doesn’t seem difficult: pile up organic matter, let it rot. In practice... - https://hackaday.com/2025/06/23/keep-track-of-the-compost-with-lorawan/ #temperaturesensor #classichacks #cubecellab01 #solarpanel #homehacks #compost #ds18b20 #lorawan

Keep Track of the Compost with LoRaWAN - Composting doesn’t seem difficult: pile up organic matter, let it rot. In practice... - https://hackaday.com/2025/06/23/keep-track-of-the-compost-with-lorawan/ #temperaturesensor #classichacks #cubecellab01 #solarpanel #homehacks #compost #ds18b20 #lorawan

Keep Track of the Compost with LoRaWAN - Composting doesn’t seem difficult: pile up organic matter, let it rot. In practice... - https://hackaday.com/2025/06/23/keep-track-of-the-compost-with-lorawan/ #temperaturesensor #classichacks #cubecellab01 #solarpanel #homehacks #compost #ds18b20 #lorawan

Keep Track of the Compost with LoRaWAN - Composting doesn’t seem difficult: pile up organic matter, let it rot. In practice... - https://hackaday.com/2025/06/23/keep-track-of-the-compost-with-lorawan/ #temperaturesensor #classichacks #cubecellab01 #solarpanel #homehacks #compost #ds18b20 #lorawan

Делаем автомобильный компьютер с нескучным функционалом

Привет, я собрал небольшой бортовой компьютер для авто, который умеет показывать температуру, время с момента включения и раздавать «Free Wi-Fi». В этой статье приведён код, список компонентов и всё остальное, чтобы собрать такой же. Назвал я его Kruk — от беларуского слова «Крук» (рус. «Крюк»). Вот видео его работы на YouTube . Здесь его страница на GitHub. Если вы уже посмотрели видео, то понимаете суть функции «Free Wi-Fi». Как только к Wi-Fi подключаются, система сразу переводит пользователя на captive portal , а сам компьютер начинает показывать, помимо температуры и времени, ещё два дополнительных окна с информацией о количестве пользователей, подключившихся к Wi-Fi, и о количестве пользователей, которые до сих пор к нему подключены (online).

https://habr.com/ru/articles/920714/

#esp32 #ESP32C3 #ssd1306 #ds18b20 #arduino_ide #bmw_e36 #WeActStudio #Kruk #Sabas_Solutions #микроконтроллеры

Are you looking to build your own temperature and humidity sensor? Bernhard Bablok compares eight sensors to determine which is the most accurate
https://www.makerspace-online.com/temperature-and-humidity-sensor-comparison/?utm_source=mms
#sensor #humidity #project #tutorial #testing #BMP280 #DS18B20 #AHT20 #RaspberryPi

E-paper Arduino термометр на ESP-IDF

Наверное каждый любитель электроники имеет в запасе модули приобретенные на всякий случай. Так несколько лет назад я не смог пройти мимо 1.5 дюймового E-Ink дисплея, лежащего на витрине радиомагазина. Через некоторое время нашлось для него применение. В статье ESP32 E-Paper Thermometer описывается, как отображать окружающую температуру, измеренную с помощью датчика DS18B20. Проект выполнен в Arduino IDE. Но я решил пройти "Путь самурая" и портировать код на ESP-IDF. Пришлось немного повозится с библиотеками для работы с дисплеем. На этом мой путь не окончился, как говорят: "У самурая нет цели, есть только путь". И я решил, что было бы неплохо добавить еще несколько сенсоров, измеряющих влажность, давление, CO2, а потом отправлять эти данные по MQTT. В том же радиомагазине был приобретен фанерный домик-конструктор со светодиодным ночником. А в другом магазине - модуль с датчиками. Таким образом родилась идея сконструировать Micro-smart-home. На передней части домика расположен дисплей на пластиковых стойках. А с другой стороны расположен модуль с сенсорами.

https://habr.com/ru/articles/912324/

#esp32 #espidf #Arduino #adafruit #ds18b20 #CCS811 #BMP280 #Si7021 #eink

Interfacing different sensors DHT11, DHT22, SHTC3, DS18B20 for temperature and humidity measurements with MicroPython and ESP32-EVB https://olimex.wordpress.com/2025/05/07/interfacing-different-sensors-with-esp32-evb-and-micropython-dht11-dht22-shtc3-and-ds18b20/ #dht11 #dht22 #shtc3 #ds18b20 #esp32 #micropython

Of course its time to add some sensors to my #glassHouse / #coldFrame - I've built a wireless sensor (uses an old 868Mhz sensor network I have at home) and finally got round to writing a ds18b20 driver for it (https://git.solarcene.community/smallsolar/ukhasnet_ds18bs20).

It will have 2 temperature sensors - one will be installed 'outside' the frame while the other will be inside - but I'm not sure where - any thoughts?

#gardening
#solar
#solarsensors
#DS18B20

Finally had some fun with my Arduino Uno R4 WiFi that I bought to learn some of this stuff and make an environment analyzer.

#ChatGPT wrote the code, I soldered and connected sensors - modern day teamwork 😆.

Had to find my old DS18B20 for temp reading because temperature sensors got way too hot on both BME280 and AHT21.

#arduino #arduinocloud #smarthome #coding #chatgpt #arduinouno #bme280 #DS18B20 #ENS160 #AHT21

Ist doch ganz nett geworden. Kleines Shield zum Anschluss von bis zu sechs OneWire Temperatur-Sensoren.

#esp8266 #onewire #espeasy #ds18b20

So I just started a project, a #RaspberryPi #Zero2W that will read from a set of sensors through the GPIO ports.

First I tried a #DS18B20 temperature sensor. I wanted to test first before welding and the pics attached here were the solutions I could came up with. I start to love the concept of #Wago clamps, but they are expensive and quite specific to the diameters of cables and sizes.

Still, it needs a pull-up in the data pin and first I tried the internal pull-up strategy but the sensor never appears to be detected. I reworked with Wago and added the suggested resistor from power to data as an external pull-up, and it worked at first try. I am 23°C at home :cool_dog:

Next step is to weld the cables to size down. Ideally I want to later be able to "easily" add the second sensor to the same circuit.

The intention is that the RPi registers stuff, (now temperature), and sends the logs somewhere. Most likely another RPi in my home cluster, that stores the data history and should present any dashboard via a web server. Maybe just implementing an endpoint to explore the data from external tools.

Futures: GPS tracker?

#furgoPi

Основные принципы организации микроклимата в закрытом грунте

Привет! Сегодня я хотел бы рассказать, как измерить температуру и влажность воздуха в твоей теплице. Поехали!

https://habr.com/ru/articles/861016/

#esp32 #esphome #homeassistant #ds18b20 #dht22 #scd40

It’s not pretty, but it works! This is the breadboard setup for the #HomeAutomation that will be controlling our #solar kiln.

At the heart is an #esp32 running #esphome. It controls 5 relays (2 sets of fans, a light and 2 relays for a linear actuator for the vent shutters). It has inputs for 3 switches (fans and light), 2 #DS18B20 temperature sensors, and an #ads1115 for a couple of CT clamps.

All controllable via #HomeAssistant. Hoping to wire it up properly this weekend.

Beverage Coaster Indicates Ideal Drinking Temperature - When temperatures plummet, there’s nothing like a hot beverage to keep you warmed ... - https://hackaday.com/2024/03/08/beverage-coaster-indicates-ideal-drinking-temperature/ #microcontrollers #stm8s103f #beverage #bluepill #coaster #ds18b20 #tea

@PlumpCat @xenogon be wary of #DS18B20 as I think the market has been flooded with clones/fakes so it’s now hard to know if you can link the chip with the datasheet

Zigbee датчик температуры для бассейна

Приветствую всех читателей Habr! В эти новогодние каникулы хочу поделиться с вами своим летним открытым проектом zigbee датчика температуры для бассейна. Идея разработать такой датчик появилась довольно спонтанно, летом 2023 года после установки бассейна на даче, появилось желание мониторить температуру воды. К тому времени у меня было разработано несколько проектов zigbee датчиков с дисплеями и датчиков температуры с выносными сенсорами. Датчики температуры можно было привязывать к датчикам с дисплеями и выводить температуру, присланную с этих внешних датчиков. Датчик температуры я закреплял на стенке бассейна, а сенсор на проводе опускался в воду. Но как оказалось это не очень то и удобно. Как только пришел к такому выводу то сразу решил что мне нужен плавающий zigbee датчик температуры.

https://habr.com/ru/articles/784654/

#zigbee #zigbee2mqtt #бассейн #температура #сс2530 #diptrace #iar #solidworks #освещённость #ds18b20

#Wochenrückblick Ausgabe 21 (2023-52).

Diesmal mit den Erkenntnissen, dass es einen riesigen Markt mit Fake-Versionen des #DS18B20 gibt, dass die Liste aller deutschen Worte (inkl. Varianten durch Flexion usw.) über 1,9 Millionen Einträge hat (und wofür man diese Liste einsetzen kann) und warum „Weiße Weihnachten“ (was eine bescheuerte Phrase BTW) hier in der Region so selten sind. Außerdem gibt es einem Mini-#Jahresrückblick (den großen braucht ihr nicht, weil ich euch ja schon wöchentlich füttere).

https://www.marcusjaschen.de/blog/2023/2023-52/

It seems Texas Instruments is working on a temperature sensor to replace the DS18B20 💪

Some interesting features:

- 1-Wire interface
- ±0.3°C (maximum) from –20°C to +85°C
- Fast conversion time: 27 ms (maximum)
- 2.5 V to 5.5V (STD mode)
- Active current: 85 μA (typical)
- TO-92 package

https://www.ti.com/product/TMP1820

🧵

#electronics #DS18B20 #temperature #sensor #1wire

I ended up programming this one with Adafruit's #circuitpython, because they have a very easy to use #ds18b20 driver and wifi driver. My preferred #Rust framework, #embassy, doesn't yet have a 1wire implementation and it looked a little gross to write it for a one-off temp sensor. I'll return to this some time later; for now, I have a thermometer located near my thermostat that I can poke and get a reading from whenever I want.

Also: The pi pico is a power hog but dang is it handy.

#raspberrypi #DS18B20 #Temperature sensor #API Server

https://github.com/VitexSoftware/thermoservice

Guten Morgen! Ich habe mir unterschiedliche Temperatursensoren angeschaut und diese in einem kleinen Vergleich antreten lassen.

Wenn das was für euer Projekt ist, findet ihr die Erkenntnisse in meinem neuen Blog-Post:

https://datort.de/vergleiche-tests/512/dht22-v-bme280-v-ds18b20-der-vergleich/

#dht22 #ds18b20 #bme280 #electronics

Another alternative to the #DS18B20 temperature sensor, the really sexy TMP1826 that TI launched last year. 

It uses the same OneWire protocol, has better accuracy, and costs about half of the DS18B20 😋

- Operating voltage: 1.7 V to 5.5 V
- High-accuracy
±0.3°C (maximum) from –20°C to +85°C
±0.5°C (maximum) from –55°C to +150°C
- 16-bit temperature resolution: 7.8125 m°C (1 LSB)

https://www.ti.com/lit/ds/symlink/tmp1826.pdf

#electronics #sensor #1wire #temperature

I found an interesting alternative to #DS18B20, the MAX31820.

It seems to be a 3.3V version of the DS18B20, which should work fine with the #ESP32 I'm using.

It is also cheaper and in stock at DigiKey. I'm going to give it a try 👍

https://www.analog.com/en/products/MAX31820.html

https://www.digikey.com/en/products/detail/analog-devices-inc-maxim-integrated/MAX31820MCR/4271348

#electronics #sensor #1wire

So, I searched on DigiKey for real DS18B20s to include on my next order... and what a surprise!

Almost all variants of the Maxim DS18B20 are out of stock (as expected), but they are now selling those chinese clones at almost the same price as the authentic ones! 🤦‍♂️

https://www.digikey.com/en/products/detail/umw/DS18B20/16705963

Crazy world. That seems to be how the supply chains are working in 2023. 🤪

#DS18B20 #sensor #fake #electronics #embedded #ChipShortage #DigiKey #Maxim

Today I'm going down the rabbit hole of DS18B20 chip fakes 🤨.

A quick test of a batch of fakes I bought here in Argentina (because those seem to be the only ones you can buy on the local market) revealed that they measure about -2 C with respect to a real Maxim DS18B20. What a 💩.

I trust the Maxim one because it is within 0.2 C of some Sensirion sensors I have here.

#DS18B20 #sensor #fake #electronics #embedded #ChipShortage

@rommudoh great plan. I See you are working "up and bigger". I'm coming from the "other end" of the spectrum: I began using #RaspberryPi for temperature Sensors with #ds18b20 attached and programmed php web pages and a bit of python.

Now I'm trying to get smaller and more energy efficient by learning to use and program #esp8266 especially the #d1mini and learning a bit #cplusplus and #arduinoide

Keep Cool With This Open Source AVR Fan Controller - We’ve all got projects kicking around that we haven’t had time to document for our own purposes, let... - https://hackaday.com/2021/03/12/keep-cool-with-this-open-source-avr-fan-controller/ #fancontroller #atmega328p #hardware #avr-gcc #ds18b20 #avr