Little Raspberry Pi to display Huawei FusionSolar Battery status and day stats

Estimated price 23.- CHF

Waveshare 2.13'' (48x23mm) 250x122 pixels BlackWhite Cost is around 25$ I've found this one : www.berrybase.ch

Northbound API

To get the data, create a API account
Huawei Forum on how to

Installation steps

Step 1, generate a new Rasbperry OS on the SD card

see other forums on how to

raspberry pi download

Step 2, clone waveshare SDK

cd /home/admin  
git clone https://github.com/waveshareteam/e-Paper

Step 3, clone my script

git clone https://github.com/k4nfr3/Fusionsolar_display  
cd Fusionsolar_display  
cp *.py /home/admin/e-Paper/RaspberryPi_JetsonNano/python/examples  
cd /home/admin/e-Paper/RaspberryPi_JetsonNano/python/examples  

Step 4, clone fusionsolar python client

git clone https://github.com/EnergieID/FusionSolar  

Step 4, install required python modules

• pandas
• PIL
• requests
• urllib3
• socket

Step 5 , enter API details

change the details in file : pv_conf.ini
Fill-in user and password

Step 6, change fusionsolar base URL

cd fusionsolar  
vi +88 client.py

change URL at line 88 : base_url: str = "https://intl.fusionsolar.huawei.com/thirdData"

Step 7, get station_code and device_code

run manually the script :

python PV.py  

It should test the screen and connect with the Northbound API. It will show you the devices you have access.

Step 8, modify ini file with the correct IDs to be interrogated

Add the missing information in the config file :

• Add the Battery ID (for example : battery=100000000001561112)
• Add the Inverter ID (for example : inverter=10000000001551111)
• Add the StationCode (for example : station="NE-12345678")

Step 9, test the script and see if you see the correct data on the screen

python PV.py

Step 10, transform the script into a PV service

cp /home/admin/FusionSolar_display/PV.service /usr/lib/systemd/system/PV.service  
chmod 644 /usr/lib/systemd/system/PV.service  
systemctl enable PV.service  

Step 11, add crontab tasks if you want to restart the service daily the service

crontab -e

add the following 2 lines

# m h  dom mon dow   command  
59 3 * * * /usr/sbin/service PV stop
0 3 * * * /usr/sbin/service PV start

Tips

Script Log file will be written

tail -f /var/log/PV.log  

Wifi SSHd not working ?

Add the following to /etc/ssh/sshd_config
IPQoS cs0 cs0

Disclaimer

No security review has been done on this script.
Running this as admin isn't the best, and I didn't take time neither to harden neither to improve it much more.
The goal was to do a quick as possible script, and that it works.
Use it if you want or inspire yourself from it.
I accept pull requests. if you have time and energy to improve this little script.