Screen Prototypes
Prototypes of the EKG monitor screen, built as web pages before the actual device. All waveforms and values are synthetic signals, not real measurements.
7-row screen prototype (2026-10-11)
Drawn for a 10.1-inch 1920×1200 screen. It is scaled down to fit the window size.
Screen layout
- Top status bar — alarm field, chest electrode V1/V5, recording time, Wi-Fi, battery A·B, power (AC), clock
- 7 waveform rows in the middle + numeric column on the right — heart rate HR, SpO₂, pulse rate PR
- Bottom tabs — Monitor · 12-lead (option) · Trend · Holter · Alarms · Electrode guide · Settings · Demo
7 waveform rows
| Row | Content | Color |
|---|---|---|
| 1 | CAL 1 mV calibration | #000000 |
| 2 · 3 · 4 | ECG I (LA−RA) · II (LL−RA) · III (LL−LA) | #006400 dark green |
| 5 | Chest lead V1 / V5 (the state of the switch on the side of the device is shown in the title) | #006400 dark green |
| 6 | SpO₂ — red-light pulse wave | #0000C0 navy blue |
| 7 | Pulse — infrared pulse wave, systolic peak marker (▼) | #0000C0 navy blue |
The SpO₂ value carries a Reference value · not calibrated label.
Sweep speed · size
- Sweep speed default 25 mm/s (6.25 · 12.5 · 25 · 50 mm/s in Settings)
- ECG gain default 10 mm/mV (5 · 10 · 20 mm/mV in Settings)
- 60 Hz notch (dual adaptive) on · off
Alarms
| Item | Default limit | Time to activate |
|---|---|---|
| Heart rate HR | 50 – 120 bpm | 5 s |
| SpO₂ | below 90 % | 8 s |
| Pulse rate PR | 50 – 120 bpm | 5 s |
| Asystole (no R wave) | no R wave for 3 s | +2 s |
| Electrode off | — | 2 s |
| Priority | Indication |
|---|---|
| High | red · 1 s blink · 10 beeps |
| Medium | yellow · 1 s blink · 3 beeps |
| Low | cyan · no blink · 1 beep |
This prototype does not actually sound alarms; it only shows them on screen. Physiological alarms remain latched even after the condition returns to normal, until "Clear past alarms" is pressed. In the "Demo" tab you can create tachycardia · bradycardia · SpO₂ drop · asystole · electrode off · power failure · Wi-Fi loss (a tab that does not exist on the actual device).
Earlier standalone screen (2026-09-25)
The screen from one stage earlier. You can switch between FHD 1920×1080 and 2K 2560×1440.
- Top status line + 6 waveform rows — CAL · Lead I · Lead II · Lead III · SpO₂ (red 660 / infrared 940 nm raw signals overlaid) · Pulse (normalized pulse wave)
- Colors — ECG #006400 dark green, optical sensor #0000C0 navy blue, the red 660 nm raw signal avoids alarm colors and uses #8B008B dark magenta
- Right numeric column — CAL, pulse, blood pressure SYS/DIA, SpO₂, PR. Blood pressure has no measuring section, so these are demo numbers
- 25 mm/s · 10 mm/mV, display time per screen 6.97 s
- The alarm upper/lower limits (pulse 50/120 · SYS 90/160 · DIA 50/100 · SpO₂ 90/100 · PR 50/120) are provisional values, not yet decided; you can open the settings window with the ▲ ▼ buttons on screen and change them
- 3 mechanical buttons below the screen — Freeze · Alarm acknowledge (silence) · Power
- Keyboard — 1~5 switch scenario, A silence, F freeze, S alarm settings, N notch, G grid, R FHD/2K, Enter full screen, H help