Comments (5)
The transistor only has 2 legs. The circuit is wrong. It is triggered by light so it has no gate. It's on the to do list but this project is on the bottom of the pile because I don't have a Viessmann heater for the moment.
from vitowifi.
Hi,
you've got example circuits schemas in the GitHub openv Wiki.
Examples:
On my side, I wired a circuit for my ESP32 based on those examples, composed only of IR LEDs and resistors ; result was not stable enough and lead to many issues.
I switched to the circuit given in example for the RaspBerry Pi , with additionals transistors. It is fully compatible with ESP32 microcontroller (given youuse GPIO 16 and 17 for RX and TX) and despite being just a bit more complex (2 transistors) it works much, much better.
from vitowifi.
Which transistor/diode you're using? If I recall correctly, the suggested types in the ESP circuit are obsolete. So maybe the RPI circuit is more tolerant for the newer parts.
from vitowifi.
Hi,
I use the same diodes as those recommended at the origin: SFH487-2 and SFH209FA. The SFH487-2 is discontinued but man can still find some on ebay.
For transistors, I use the same as those described on the Rpi circuit too: 2N3906 for emission and the BC547B (PNP one) for reception.
Overall, my circuit is really exactly thr same as the one for Rpi (except the 100nF capacitor I didn't had in stock). And it's now going perfectly.
Btw, thanks for your work ; even if I plan to develop my own 'driver' for my heater/home automation server through USB/serial, your code give me a good basis for further inspiration.
from vitowifi.
Circuit corrected in v3
from vitowifi.
Related Issues (20)
- Return type of _readDatapoint and _writeDatapoint HOT 1
- Compilation error at Datapoint.hpp HOT 1
- EOL for message "queue full" HOT 1
- "Betriebsart" as example delivers always "0" HOT 4
- DPCoP and group HOT 1
- 8 Byte read extension with uint64_t brings inconsistent results HOT 30
- VitoWiFi.readDatapoint() only on MQTT request HOT 5
- Serialmonitor "chksum 0x2d" HOT 4
- Blocking after 6 hours HOT 3
- Errors on high MQTT request rate HOT 9
- Keine Verbindung mit ESP32 über USB-Host möglich HOT 3
- Wemos D1 mini / Serial-Pins HOT 7
- Example for DPRaw HOT 2
- Can you explain a bit more how to install the library in Arduino IDE 2.0? HOT 4
- Queue full without any connection
- VitoWiFi 2.0 Debug funcionality HOT 7
- Solved: Vitocal300 WO1B does not start with VitoWifi attached HOT 4
- Vitoconnect passthrough HOT 12
- Up-to-date library version on PlatformIO HOT 3
- Cannot compile HOT 1
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 vitowifi.