Pytes E-Box Component

[oxynatOr]

Ahoy

i’m looking for some guys that can help me test my Component for Pytes Battery (E-Box)

GitHub - oxynatOr/esphome-pytes_e_box: The PytesEbox component allows you to...

The PytesEbox component allows you to pull data from Pytes Batteries into ESPHome.

It uses UART for communication.

Hardware Setup

You can connect to Pytes E-Box using the port labeled Console

Any connections via CAN or RS485 (e.g. to an inverter) are untouched and remain functional.

The console port offers a RS232 interface using a RJ45 connector.

The voltage levels are not TTL-compatible. A RS232 transceive r must be placed between the Batteries and the ESPHome device. MAX3232 -based transceivers have been tested and work well.

If you have multiple batteries you need to connect to the master battery’s console port.

ESP Pin	Transceiver	RJ45 Pin	Function
GPIO 6	RX	3	TX
GND	GND	4	Ground
GPIO 5	TX	6	RX
3v3	VCC	NC	Power

Commands:

Command	Info	Note
pwr	Power data show - pwr [index]
pwr N	Power data show - pwr [index]
bat N	Battery data show - bat [pwr][index]
soh N	State of health - soh [addr]	Not ready yet, my FW has no soh

Tested devcies:

Manufacturer	Devcie
Pytes	E-BOX-48100R-C
Pytes	E-BOX-48100V-D (V5)
Pytes	E-BOX-48100R-B (pending)

Tested EPS:

Manufacturer	Devcie
Waveshare	S3-Zero
-	WROOM32 D1 mini

[oxynatOr]

Reserved for future post.

[m0st1ted]

Hello. I am trying to install this on Pytes V5 battery but I can’t compile it. where do I put the “components” folder? “homeassistant/esphome/components/pytes_e_box” doesn’t work.

[oxynatOr]

Hello, and sorry for the late replay

you need to use the github implementation, like this:

external_components:
  - source: github://oxynatOr/esphome-pytes_e_box@frim_curr_date-sensor_fix
    components: [ pytes_e_box ]
    refresh: 5s

thanks for giving it a try

[m0st1ted]

It works on Pytes V5. I only have 1 battery so I cannot test multiple battery. I checked: Battery current, SOC, Temperature, Voltage, Cell Voltage/Current/Base/temperature State, Events, Barcode, State, etc. It doesn’t show the cells voltages. It only show Normal State. Can you modify the code?

[oxynatOr]

uh that looks nice !

i will check what i can do at the weekend.

are you familiar with : how to connect to console and send commands:
like
pwr
pwr 1
bat 1
soh 1

maybe the output of V5 is bit different, so i could implement this as well

[m0st1ted]

This is the Putty output:

[oxynatOr]

thanks a lot!!!

okay the firmware/output is the same, even the SoH-Status is missing ^^

i will give it a shoot tomorrow (Saturday).

just one more question, what “IoT” device u are using?
i did with an ESP-32-S3-Mini/Zero, and had no luck with an C3-SuperMini.

Cya-

[oxynatOr]

@m0st1ted

It doesn’t show the cells voltages

sensor:
  - platform: pytes_e_box
    pytes_e_box_id: ${pytes_e_box_id}
    battery: ${battery_num}
    cells: 
      - cell: 0
        voltage:
          name: "${cell_prefix} ${battery_num}.0 Voltage"
        temperature:
          name: "${cell_prefix} ${battery_num}.0 Temperature"
        coulomb:
          name: "${cell_prefix} ${battery_num}.0 Coulomb"
        current:
          name: "${cell_prefix} ${battery_num}.0 Current"

can you re-check the config file pls.

/e: here is an example of mine:

esphome-pytes_e_box/examples at main · oxynatOr/esphome-pytes_e_box

[m0st1ted]

@oxynatOr

coulomb

It works now. I see the cell voltage.

The “IoT” devices I used are Esp32 Wroom and Esp32 D1 mini( GPIO16-RX, GPIO17-TX

Thank you for the code!

[oxynatOr]

cool!!

if you see any strange values or bug, or new thing, let me know!

[eugen]

Hi, I would like to test this.
I have 4x E-Box 48100R (B Version) and a lot of NodeMCU with ESP32 or ESP8266. Will order a MAX323 now.

I already had some experience with ESPHome and build a Modbus Adapter for my wallbox.

But I think my knowledge in not enough to understand, how to install/implement the software part.
Can you write a little tutorial?

Thanks
Eugen

[oxynatOr]

Ahoy!

sure, can you tell me where the issue start, and what part need to be explained?

i would start with the ESP32, get it displayed in ESPHome and HA.

when this is working, you can link to the component.

external_components:
  - source: github://oxynatOr/esphome-pytes_e_box@frim_curr_date-sensor_fix
    components: [ pytes_e_box ]
    refresh: 5s

with the MAX in place, you can add this:

uart:
  tx_pin: GPIO5
  rx_pin: GPIO6
  baud_rate: 115200
  rx_buffer_size: 1024
  id: uart01   

pytes_e_box:
  - id: pvbatt
    uart_id: uart01
    update_interval: 30s
    batteries: 4
    poll_timeout: 4s 
    command_idle_time: 150ms

and see what will happen.

but pls. tell me where u get stuck, and i will explain it to you.

btw, thanks for helping me!