4 JK PB2A16S20P inverter bms
In this case, if I have a BMS outside the shunt circuit, its values will be disregarded by YamBMS?
# Execute once
esphome:
on_boot:
then:
- lambda: |-
//
// Source : https://batteryuniversity.com/article/bu-216-summary-table-of-lithium-based-batteries
//
if (${yambms_battery_chemistry} == 1) // LFP
{
// LFP
id(${yambms_id}_cell_mominal_v) = 3.20;
id(${yambms_id}_cell_min_charge_v) = 3.37; // Fully charged at rest
id(${yambms_id}_cell_max_charge_v) = 3.65;
id(${yambms_id}_cell_max_discharge_v) = 3.00; // Not used
}
else if (${yambms_battery_chemistry} == 2) // Li-ion
{
// Li-ion
id(${yambms_id}_cell_mominal_v) = 3.60;
id(${yambms_id}_cell_min_charge_v) = 3.90;
id(${yambms_id}_cell_max_charge_v) = 4.20;
id(${yambms_id}_cell_max_discharge_v) = 3.20; // Not used
}
else if (${yambms_battery_chemistry} == 3) // LTO
{
// LTO
id(${yambms_id}_cell_mominal_v) = 2.40;
id(${yambms_id}_cell_min_charge_v) = 2.55; // Fully charged at rest
id(${yambms_id}_cell_max_charge_v) = 2.85;
id(${yambms_id}_cell_max_discharge_v) = 2.00; // Not used
}
int cell_count = ${yambms_cell_count};
// Bulk V.
id(${yambms_id}_bulk_voltage).traits.set_min_value(round(cell_count * id(${yambms_id}_cell_min_charge_v) * 10) / 10);
id(${yambms_id}_bulk_voltage).traits.set_max_value(round(cell_count * id(${yambms_id}_cell_max_charge_v) * 10) / 10);
// Float V.
id(${yambms_id}_float_voltage).traits.set_min_value(round(cell_count * (id(${yambms_id}_cell_min_charge_v) - 0.1) * 10) / 10);
id(${yambms_id}_float_voltage).traits.set_max_value(round(cell_count * (id(${yambms_id}_cell_min_charge_v) + 0.1) * 10) / 10);
// Rebulk V.
id(${yambms_id}_rebulk_voltage).traits.set_min_value(round(cell_count * id(${yambms_id}_cell_mominal_v) * 10) / 10);
id(${yambms_id}_rebulk_voltage).traits.set_max_value(round(cell_count * id(${yambms_id}_cell_min_charge_v) * 10) / 10);
Normally, it should be sufficient to solder only GND and TX from the shunt to the CAN board, correct? Since the VE.Direct of the SmartShunt operates at 3.3V, it should work without issues—unless I’m overlooking something?
For sure. Thats all Ive ever done
* YamBMS 1.5.4 :
* New low SoC corrected at each BMS level (the corrected SoC is the one transmitted to YamBMS)
* New BMS dashboard
* New end of charge logic at each BMS level, the charge switch turns off when the cells are equalized (disabled by default)
* Fixed `errors_bitamsk` for JK-PB RS485, test OK with YamBMS (forked component)
* YamBMS 1.5.3 :
* Broadcasting JK-PB settings to all BMS set to OFF by default
* Reorganizing the `board` folder and YAMLs (device_base.yaml moved to board.yaml)
* `device_base.yaml` should no longer be part of `YamBMS_main.yaml`
* New `RGB LED status` light effects (red, green, blue, cyan) as an `options` packages for `board.yaml`
* Increased CPU frequency to `240Mhz` as an `options` packages for `board.yaml`
* Added `ESP32 Generic`, `LilyGo T-CAN485`, `LilyGo T-Connect` and `XIAO` boards
* Fixed SoC logic (low SoC will be detected at BMS level and no longer at YamBMS level)
* Simplified combination logic (removal of the combine switch) + dashboard update
* Check `Battery Capacity` is `> 0` before combining info (see [issue #14](https://github.com/Sleeper85/esphome-yambms/issues/14))
* Improved alarm logic with a common `YamBMS errors bitmask` for all BMS models (see OTP vs UTP bug reported by @ChrisG)
* Added [PR #7547](https://github.com/esphome/esphome/pull/7547) regarding publishing entities via the API
* Removed `captive_portal` because it increases the `loop time` too much
* `PSRAM` will no longer be enabled by default as this has a bad impact on `BLE BMS`
* YamBMS 1.5.2 :
* Added shunt `Online Status` binary_sensor
* Shunt combine condition based on the new binary_sensor `Online Status`
* Logger `baud_rate: 0` by default (frees the 3rd UART and avoids some bugs like "WK2168 with canbus" or "BLE client with RS485 modbus")
* Changed names of `bms` and `shunt` YAMLs for modbus `multi-node` solution
* Added shared configuration file to simplify main YAML (centralization of parameters)
* Simplification (fewer options) when importing `BMS / Shunt` YAMLs
* New `multi-node` solution using `RS485 modbus` to communicate information to YamBMS
* New board `espBerry` with `2-CH-CAN HAT`Thanks. Tested.
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