There is one .BIN files in this realease,
A Web surface to control R48xx modules via CAN BUS,
New in this release:
MQTT credentials can be set in the WebApp directly, no need to get into the YAML. (mini update v099, fixed MQTT reconnect bug, no longer wiping credentials after 3 unsuccessful retries, now it retries every 5 minutes to reconnect to MQTT if it loses MQTT connection thanks @kr0815 for raising the issue)
But I have Homeassitant: you can use this .BIN file, just make sure that you have Mosquitto broker Add-on installed, the device will be auto-discovered and is visible as a device in the MQTT integration.
- Install the Mosquitto Broker Add-on:
Go to your Home Assistant frontend.
Navigate to Supervisor > Add-on Store.
Search for and install the Mosquitto broker add-on.
Start the add-on and ensure it's configured to start on boot. - Configure the MQTT Integration:
Go to your Home Assistant frontend.
Navigate to Settings > Devices & Services.
Select Add Integration and then choose MQTT.
Follow the on-screen instructions to connect to the Mosquitto broker.
By default HA uses your HA user credentials to allow access to your broker.
What is Homeassistant?, I just want the new Web-App: Download the Web-App .BIN here
Here is the YAML if you would like to compile your own or to activate MQTT yourself or use the API
and upload it to an ESP32 WROOM32 dev board using this link:
https://web.esphome.io/
Make sure you have the following connected:
tx_pin: GPIO19==tx of the CAN tranceiver board
rx_pin: GPIO21==rx of the CAN tranceiver board
Once the firmware is on the ESP32, it will reboot and after 3 minutes it will
create a hotspot, now connect your PC/Phone to the hotspot "R48xx-off-grid"
12345678
once connected to the hotspot open your browser and go to
192.168.4.1
enter you wifi credentials, the esp reboots, the hotspot dissapears and stays gone if it can connect to your wifi, now you can find the web app at:
http://r48xx-off-grid.local/
connect the CAN-H to CAN-H and CAN-L to CAN-L , plug in your R48xxGx rectifier and happy charging :)
This release should be compatible with most Huawei R48xxxxx rectifier boards, it supports a single board.
R48xx Off-Grid MQTT Topic Reference
All entities publish their availability (
online/offline) tor48xx-off-grid/status
Switches use: send on or off to command topic
| Friendly name | State topic | Command topic |
|---|---|---|
| Soft Charge Enable | r48xx-off-grid/switch/soft_charge_enable/state |
r48xx-off-grid/switch/soft_charge_enable/command |
Buttons use: send PRESS to command topic
| Friendly name | Command topic |
|---|---|
| 001 Can On Button | r48xx-off-grid/button/001_can_on_button/command |
| 002 Can Off Button | r48xx-off-grid/button/002_can_off_button/command |
| 18 Setup This Charger | r48xx-off-grid/button/18_setup_this_charger_/command |
| Fan Auto Mode Button | r48xx-off-grid/button/fan_auto_mode_button/command |
| Fan Full Speed Button | r48xx-off-grid/button/fan_full_speed_button/command |
| Soft Charge 15s LFP Defaults | r48xx-off-grid/button/soft_charge_15s_lfp_defaults/command |
| Soft Charge 16s LFP Defaults | r48xx-off-grid/button/soft_charge_16s_lfp_defaults/command |
| Soft Charge Load | r48xx-off-grid/button/soft_charge_____load/command |
| Soft Charge Save | r48xx-off-grid/button/soft_charge_____save/command |
| Wh Meter Reset | r48xx-off-grid/button/wh_meter_reset/command |
Numbers use: send a number 50.4 to command topic
| Friendly name | State topic | Command topic |
|---|---|---|
| 10 Set Voltage Limit | r48xx-off-grid/number/10_set_voltage_limit/state |
r48xx-off-grid/number/10_set_voltage_limit/command |
| 11 Set Fallback Voltage Limit | r48xx-off-grid/number/11_set_fallback_voltage_limit/state |
r48xx-off-grid/number/11_set_fallback_voltage_limit/command |
| 12 Set Dc Current Limit | r48xx-off-grid/number/12_set_dc_current_limit/state |
r48xx-off-grid/number/12_set_dc_current_limit/command |
| 13 Set Fallback Dc Current Limit | r48xx-off-grid/number/13_set_fallback_dc_current_limit/state |
r48xx-off-grid/number/13_set_fallback_dc_current_limit/command |
| 14 Set Ac Current Limit | r48xx-off-grid/number/14_set_ac_current_limit/state |
r48xx-off-grid/number/14_set_ac_current_limit/command |
| Fan Minimum Speed | r48xx-off-grid/number/fan_minimum_speed/state |
r48xx-off-grid/number/fan_minimum_speed/command |
| Stage Reset Voltage | r48xx-off-grid/number/stage_reset_voltage/state |
r48xx-off-grid/number/stage_reset_voltage/command |
| Stage Threshold 1 | r48xx-off-grid/number/stage_threshold_1/state |
r48xx-off-grid/number/stage_threshold_1/command |
| Stage Current 1 | r48xx-off-grid/number/stage_current_1/state |
r48xx-off-grid/number/stage_current_1/command |
| Stage Threshold 2 | r48xx-off-grid/number/stage_threshold_2/state |
r48xx-off-grid/number/stage_threshold_2/command |
| Stage Current 2 | r48xx-off-grid/number/stage_current_2/state |
r48xx-off-grid/number/stage_current_2/command |
| Stage Threshold 3 | r48xx-off-grid/number/stage_threshold_3/state |
r48xx-off-grid/number/stage_threshold_3/command |
| Stage Current 3 | r48xx-off-grid/number/stage_current_3/state |
r48xx-off-grid/number/stage_current_3/command |
| Stage Threshold 4 Balance | r48xx-off-grid/number/stage_threshold_4_balance/state |
r48xx-off-grid/number/stage_threshold_4_balance/command |
| Stage Current 4 Balance | r48xx-off-grid/number/stage_current_4_balance/state |
r48xx-off-grid/number/stage_current_4_balance/command |
| Stage Time Balance | r48xx-off-grid/number/stage_time_balance/state |
r48xx-off-grid/number/stage_time_balance/command |
| Set Current Hour | r48xx-off-grid/number/set_current_hour/state |
r48xx-off-grid/number/set_current_hour/command |
| Set Current Minute | r48xx-off-grid/number/set_current_minute/state |
r48xx-off-grid/number/set_current_minute/command |
| Set On Hour | r48xx-off-grid/number/set_on_hour/state |
r48xx-off-grid/number/set_on_hour/command |
| Set On Minute | r48xx-off-grid/number/set_on_minute/state |
r48xx-off-grid/number/set_on_minute/command |
| Set Off Hour | r48xx-off-grid/number/set_off_hour/state |
r48xx-off-grid/number/set_off_hour/command |
| Set Off Minute | r48xx-off-grid/number/set_off_minute/state |
r48xx-off-grid/number/set_off_minute/command |
Sensors
Read-only telemetry is published to the topics below (one per bullet):
- 003 Power State —
r48xx-off-grid/sensor/003_power_state/state - 01 Input Ac Power —
r48xx-off-grid/sensor/01_input_ac_power/state - 02 Input Grid Ac Frequency —
r48xx-off-grid/sensor/02_input_grid_ac_frequency/state - 03 Input Ac Current —
r48xx-off-grid/sensor/03_input_ac_current/state - 04 Input Ac Grid Voltage —
r48xx-off-grid/sensor/04_input_ac_grid_voltage/state - 05 Output Dc Power —
r48xx-off-grid/sensor/05_output_dc_power/state - 06 Output Dc Current —
r48xx-off-grid/sensor/06_output_dc_current/state - 06a Output Dc Current Alt —
r48xx-off-grid/sensor/06a_output_dc_current_alt/state - 07 Output Dc Voltage —
r48xx-off-grid/sensor/07_output_dc_voltage/state - 08 Output Temperature —
r48xx-off-grid/sensor/08_output_temperature/state - 09 Max Output Dc Current —
r48xx-off-grid/sensor/09_max_output_dc_current/state - 19 Scaling Factor —
r48xx-off-grid/sensor/19_scaling_factor/state - Fan Rpm —
r48xx-off-grid/sensor/fan_rpm/state - Info Barcode —
r48xx-off-grid/sensor/info__barcode/state - Info Board Type —
r48xx-off-grid/sensor/info__board_type/state - Info Description —
r48xx-off-grid/sensor/info__description/state - Info Item Number —
r48xx-off-grid/sensor/info__item_number/state - Info Manufacturing Date —
r48xx-off-grid/sensor/info__manufacturing_date/state - Info Max Current Capability —
r48xx-off-grid/sensor/info__max_current_capability/state - Info Operating Hours —
r48xx-off-grid/sensor/info__operating_hours/state - Input Temperature —
r48xx-off-grid/sensor/input_temperature/state - Local Time (Off-Grid) —
r48xx-off-grid/sensor/local_time__off-grid_/state - Minutes Until Next On —
r48xx-off-grid/sensor/minutes_until_next_on/state - Minutes Until Next Off —
r48xx-off-grid/sensor/minutes_until_next_off/state - Wh Meter Consumed Wh —
r48xx-off-grid/sensor/wh_meter_consumed_wh/state
