cm/han-mqtt-adapter
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Update README.md

Browse Source
This commit is contained in:
Christoffer Martinsson 2023-08-30 22:17:55 +00:00
parent 52bac7009d
commit 989d1df522
1 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
README.md
View File

@ -1,4 +1,9 @@
# Han Mqtt Adapter
### Protocol
[link to HAN protocol](https://hanporten.se/svenska/protokollet/)
### Hardware
Han port pinout (RJ12):
1. 5V (max 250mA)
2. Data request (connect to 5V to enable)
@ -7,7 +12,11 @@ Han port pinout (RJ12):
5. Data (TX 115200 inverted open drain)
6. GND
Add pullup resistor between Pico RX pin and 3V3
PicoW connection:
- Connect HAN port pin 1 and 2 to pico 5V
- Connect HAN port pin 3 and 6 to pico GND
- Connect HAN port pin 5 to pico 1 (RX)
- Add pullup resistor (15k) between Pico RX pin and 3V3
![front](20220814_231222.MEDIUM.jpeg)
![back](20220814_231229.MEDIUM.jpeg)