EasyWallbox Free2Move Python Mqtt Manager / Monitor

What is this?

The EasyWallbox worked fine for me until I installed FV Roof Panels on my house and I want to use the solar excedents to charge my car during the day.

On the EB configuration I can set the charge limit, the safe and the DPM limit

DPM = Dynamic Power Management

But the DPM only works to balance the charging between the house consumption and the setted charge/safe limit.

What I need it's top ballance the charging between the Panels, house consumption and the DPM, at this point I am able to know how many kWh I get from the Panels and how many kWH I use at the house, so I have 2 options:

Buy a new Wallbox that it's able to do what I need, but this will cost me at least 800€
Connect to the Wallbox via BLE and change the safe or charge limit according to how many electricity I get from my Panels, for this I need to buy a bluetooth adapter for my HAL9000 and this will cost me a 8€

How to connect, read and write information to the Wallbox

1. Search for the BLE mac address.

Open your linux terminal and run :

hcitool dev

If you don't get any info you have to reinsert the Bluetooth dongle

Now run a low energy scan to get all the available BLE devices:

sudo hcitool lescan

At this point you get you Wallbox mac address in this format 00:00:00:00:00 (save it for later)

2. Get the PIN code to connect to your wallbox (SPOILER: NO I'TS NOT 001234)

To connect with your android/ios device you have to scan a QR Code that's it's available on a sticker inside your Wallbox and after that probabilly you get a message in the app telling you the pin code it's 001234, no, it's not this code it's only to use it trought the official app.

How to get your code.

Open your camera / QR Code reader and point it to the sticker. You will get something like:

BT:N:2911AA00101728;M:F2ME.EWE08APEFXX;D:eWB01728;P:001234;A:9844;;

Let's decode it:

N: Serial 2911AA00101728
M: Part Number F2ME.EWE08APEFXX
D: BT Name eWB01728
P: Device Pin 001234
A: BLE Pin 9844

We need the A: value, in my case it's "9844" (save it for later)

MQTT Commands

easywallbox/dpm

Description	MQTT Command
Turn On DPM	easywallbox/dpm/on
Turn Off DPM	easywallbox/dpm/off
Get Limit	easywallbox/dpm/limit
Set Limit	easywallbox/dpm/limit/{limit}
Get DPM status	easywallbox/dpm/status

easywallbox/charge

Description	MQTT Command
Start Charge Now	easywallbox/charge/start
Start Charge Delayed	easywallbox/charge/start/{delay}
Stop Charge Now	easywallbox/charge/stop
Stop Charge Delayed	easywallbox/charge/stop/{delay}

easywallbox/limit

Description	MQTT Command
Get DPM Limit	easywallbox/limit/dpm
Set DPM Limit	easywallbox/limit/dpm/{limit}
Get Safe Limit	easywallbox/limit/safe
Set Safe Limit	easywallbox/limit/safe/{limit}
Get User Limit	easywallbox/limit/user
Set User Limit	easywallbox/limit/user/{limit}

easywallbox/read

Description	MQTT Command
Read Manufacturing Values	easywallbox/read/manufacturing
Read Settings	easywallbox/read/settings
Read App Data	easywallbox/read/app_data
Read HW Settings	easywallbox/read/hw_settings
Read Supply Voltage	easywallbox/read/voltage

All the responses are sent to MQTT under easywallbox/message

Edit docker-compose.yaml

Update the file with your values

easywallbox:
    container_name: easywallbox
    restart: unless-stopped
    image: easywallbox:latest
    user: root
    environment:
      - MQTT_HOST=192.168.2.70
      - WALLBOX_ADDRESS = "00:00:00:00:00"
      - WALLBOX_PIN = "9844"

BLE Available commands

Login / Logout

Description	Command
LOGIN	$BLE,AUTH,{pin}\n
LOGOUT	$BLE,LOGOUT\n

Start / Stop Charge

Description	Command
START CHARGE	$CMD,CHARGE,START,{delay}\n
STOP CHARGE	$CMD,CHARGE,STOP,{delay}\n

Read / Write Commands

Description	Command
INDEX WRITE	$EEP,WRITE,IDX,{index}\n
INDEX READ	$EEP,READ,IDX,{index}\n
READ ALARMS	$EEP,READ,AL,{alarmnum}\n
READ MANUFACTURING	$EEP,READ,MF\n
READ CHARGING SESSIONS	$EEP,READ,SL,{sessionnum}\n
READ SETTINGS	$EEP,READ,ST\n
READ APP DATA	$DATA,READ,AD\n
READ HW SETTINGS	$DATA,READ,HS\n
READ SUPPLY VOLTAGE	$DATA,READ,SV\n
SET USER LIMIT	$EEP,WRITE,IDX,174,{limit}\n
SET DPM LIMIT	$EEP,WRITE,IDX,158,{limit}\n
SET SAFE LIMIT	$EEP,WRITE,IDX,156,{limit}\n
SET DPM OFF	$EEP,WRITE,IDX,178,0\n
SET DPM ON	$EEP,WRITE,IDX,178,1\n
GET USER LIMIT	$EEP,READ,IDX,174\n
GET DPM LIMIT	$EEP,READ,IDX,158\n
GET SAFE LIMIT	$EEP,READ,IDX,156\n
GET DPM STATUS	$EEP,READ,IDX,178\n

mihaistana / easywallbox