Comments (5)
First of all, read this and triple-check.
Hmmm... I see "+12V" mark on the PCB nearby...
from esp32-faikin.
It's possible you've just plugged it in reverse. I made that mistake when installing mine (there's really no good way to tell the correct orientation on that thing), and flipping it solved the issue with (luckily) no damage to any component that I could tell. I notice 2 capacitors right next to your S21 port, aligned with two of the pins, so my guess would be that these are the data pins.
But from your OP, I take it you've already tried both or tested the pins with a multimeter?
from esp32-faikin.
But from your OP, I take it you've already tried both or tested the pins with a multimeter?
I tested the pins with multimeter taking into account the possibility of different pinout. I just wish there was a known solid ground to use as a reference on the PCB. I had to partly dismantle the pcb from the rest of the AC unit while standing on a ladder and its not that easy to take measurements with the power switch on...
from esp32-faikin.
Oookay, let's assume that we've already checked against stupid things and here go smart ones... Unfortunately that would require more ladder-up-n-down
From markings on the board we can see that GND is JP36 and +12V is JP35. So, we can beep which pin on S21 is ground. Pins next to C65 and C66 indeed look like tx/rx. So, if we line this up with the pinout we know, we'll get:
It's now your turn to confirm a GND pin (or find a proper one) and check whether 12V is present on JP35. Further actions depend on whether 12V is present:
- If yes - you may just clip a tap wire to this jumper i think.
- If not - the hard part comes. We need the schematic. And in order to obtain one, you'll need to dismantle your board and take a good readable photos (or better flatbed scans) of both sides, so that we could correlate them and trace connections.
from esp32-faikin.
The little triangle denotes pin 1, if that helps.
from esp32-faikin.
Related Issues (20)
- [BUG] Mode controls by HA don't work with CN_WIRED HOT 15
- [FEATURE] Provide a way to disable code signing HOT 3
- [BUG] cloudflared proxied faikin not working HOT 6
- [FEATURE] Pullup resistor on RX line HOT 16
- [BUG] 8266 release publishing HOT 2
- [BUG] "make update" over-updates SQLib HOT 3
- MQTT Current Temperature HOT 8
- [BUG] Forgot mqtt and login settings after auto ota update HOT 17
- [Hardware] Faikin unable to boot HOT 22
- [FEATURE] Expose more switches to HA HOT 10
- No voltage on PIN4 HOT 30
- [BUG] MQTT topic names changed new version HOT 17
- [BUG] 'Powerful' mode doesn't turn on HOT 24
- problems with mixed content (HTTPS over Synology WebVPN) HOT 14
- [BUG] Gpio to GND without rezistor? HOT 3
- [FEATURE] manual setup of url (or dns suffix) HOT 6
- [FEATURE] proxy settings HOT 3
- How to open the web config page? HOT 2
- Faikin MQTT command/ACGuest/mode switches AC on
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-faikin.