Comments (3)
I've observed same behaviour. I can't drive 2 or more parasitic sensors. Usually I get a reading of "127" centigrade.
from esp32-ds18b20.
Basically RMT requires the GPIO to be set to Open-drain, so it does not support conversion current.
I've hacked around it by changing the pin to active pull after starting the conversion and then changing it back to RMT.
The ESP-IDF RMT API does not support it, we need to hack into the GPIO/MUX settings.
I will try to share my code eventually.
from esp32-ds18b20.
Basically RMT requires the GPIO to be set to Open-drain, so it does not support conversion current. I've hacked around it by changing the pin to active pull after starting the conversion and then changing it back to RMT. The ESP-IDF RMT API does not support it, we need to hack into the GPIO/MUX settings. I will try to share my code eventually.
Have you had any success?
from esp32-ds18b20.
Related Issues (9)
- Trouble initializing and communicating after other code changes HOT 4
- Hi I'm trying to launch on esp32c3. HOT 1
- Bug in ds18b20_convert_and_read_temp HOT 2
- MAX31850 adaptation HOT 3
- Refactor `ds18b20_read_temp` to use `_read_scratchpad`
- Temperature reading is too high HOT 14
- I find mixed return types DS18B20_ERROR and bool error-prone HOT 4
- The library does not work correctly, no valid temperature readings. HOT 30
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from esp32-ds18b20.