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Marstek B2500: decode more stuff and improve debug output

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Known now:
- P1/P2 active (unclear yet if that means connected or actually outputting, will see in the night)
- Input in W from solar panels (Connector pairs 1+2)
- Output to inverter (Connector pairs 1+2)
This commit is contained in:
Andreas Shimokawa 2024-12-19 13:00:58 +01:00
parent 899f283a1b
commit ef4743d554
1 changed files with 27 additions and 15 deletions
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42
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/marstek/MarstekB2500DeviceSupport.java
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@ -164,28 +164,40 @@ public class MarstekB2500DeviceSupport extends AbstractBTLEDeviceSupport {
SharedPreferences.Editor devicePrefsEdit = devicePrefs.getPreferences().edit();
ByteBuffer buf = ByteBuffer.wrap(value);
buf.order(ByteOrder.LITTLE_ENDIAN);
buf.position(12); // skip header and unknown
firmwareVersion = buf.get();
boolean battery_allow_passthough = buf.get() != 0x01;
boolean manual_discharge_intervals = buf.get() != 0x01;
buf.position(buf.position() + 3); // skip unknown
byte battery_max_use = buf.get();
short battery_current_discharge = buf.getShort();
buf.position(buf.position() + 1); // skip unknown
short battery_charge = buf.getShort();
buf.position(4); // skip header
boolean p1_active = buf.get() != 0x00; // TODO: active = connected, or power incoming?
boolean p2_active = buf.get() != 0x00;
int p1_watt = buf.getShort();
int p2_watt = buf.getShort();
buf.position(buf.position() + 2); // unknown;
getDevice().setFirmwareVersion("V" + (firmwareVersion & 0xff));
firmwareVersion = buf.get() & 0xff;
boolean battery_allow_passthough = buf.get() != 0x01;
boolean battery_manual_discharge_intervals = buf.get() != 0x01;
buf.position(buf.position() + 3); // skip unknown
byte battery_max_use_pct = buf.get();
int output_to_inverter_target = buf.getShort();
buf.position(buf.position() + 1); // skip unknown
int battery_charge_kwh = buf.getShort();
int output_to_inverter_1_watt = buf.getShort();
int output_to_inverter_2_watt = buf.getShort();
int battery_minimum_charge_pct = 100 - battery_max_use_pct;
int output_to_inverter_sum_watt = output_to_inverter_1_watt + output_to_inverter_2_watt;
LOG.info("p1_active: {}, p2_active: {}, p1_watt: {}W, p2_watt: {}W, battery_charge_kwh: {}kWh, battery_minimum_charge_pct: {}%, battery_allow_passthrough: {}, battery_manual_discharge_intervals: {}, output_to_inverter_target: {}W, output_to_inverter: {}W+{}W={}W, firmwareVersion: V{}, ",
p1_active, p2_active, p1_watt, p2_watt, battery_charge_kwh, battery_minimum_charge_pct, battery_allow_passthough, battery_manual_discharge_intervals, output_to_inverter_target, output_to_inverter_1_watt, output_to_inverter_2_watt, output_to_inverter_sum_watt, firmwareVersion);
getDevice().setFirmwareVersion("V" + firmwareVersion);
getDevice().sendDeviceUpdateIntent(getContext());
int battery_minimum_charge = 100 - battery_max_use;
devicePrefsEdit.putString(PREF_BATTERY_MINIMUM_CHARGE, String.valueOf(battery_minimum_charge));
devicePrefsEdit.putBoolean(PREF_BATTERY_DISCHARGE_MANAUAL, manual_discharge_intervals);
devicePrefsEdit.putString(PREF_BATTERY_MINIMUM_CHARGE, String.valueOf(battery_minimum_charge_pct));
devicePrefsEdit.putBoolean(PREF_BATTERY_DISCHARGE_MANAUAL, battery_manual_discharge_intervals);
devicePrefsEdit.putBoolean(PREF_BATTERY_ALLOW_PASS_THOUGH, battery_allow_passthough);
devicePrefsEdit.apply();
devicePrefsEdit.commit();
int battery_percentage = (int) Math.ceil((battery_charge / 2240.0f) * 100);
int battery_percentage = (int) Math.ceil((battery_charge_kwh / 2240.0f) * 100);
getDevice().setBatteryLevel(battery_percentage);
getDevice().sendDeviceUpdateIntent(getContext());
}