Dashboard · Power & Consumption
Put the current meter on the screen and watch every fluctuation
Connects to a current meter over BLE (XR-POWER series and similar) and samples voltage, current, power and accumulated energy in real time, drawing high-refresh curves. Data is transferred as fixed-point with 10⁶ scaling to avoid the accumulated error of floating point on embedded targets — ideal for battery-life estimates and peak/valley analysis on low-power devices.
Every reading is also delivered to the local data recorder and the server history store, so you can review curves on the device or run long-horizon comparisons and reboot forensics on the self-hosted platform.
On-screen interface
A recreation of this page on the 2.41-inch AMOLED display (600 × 450). Actual interaction and layout follow the latest firmware.
Key capabilities
Three live channels
Voltage/current/power drawn on one screen with auto range scaling and peak/average markers.
Fixed-point 10⁶ precision
The meter transmits int32 fixed-point; voltage ÷100 and current ÷1000 restore the value with no conversion drift.
Snapshots and recording
Single snapshot or continuous recording; recorded segments land on the SD card or report to the server.
Self-healing link
Automatically rescans and reconnects after a BLE drop — long burn-in tests need no babysitting.
Technical specs
Typical scenarios
Battery-life measurement
Capture current spikes from WiFi wake-ups and screen-on events to estimate real runtime.
Charging and PMIC debugging
Watch the CV/CC transition point, termination current and efficiency changes with temperature.
Long burn-in tests
Record for days and locate anomalies quickly through server-side history curves.
Related commands
page 2 Jump to the power and consumption dashboard sys Show current sampling state and link information GET /api/history?dev=BAT-01FC&limit=2000 Fetch history curve data
- Requires a compatible BLE current meter; different models need their notification characteristic selected on the page.