The brain of your scent machine: one smart board
Install the MARG SCENT scent machine control board in your machine and it works. It is mains-powered (no adapter), drives the pump via a single relay output, and runs the weekly schedule with a real-time clock. Nothing else is needed to control it: only the LCD display and/or the Bluetooth app. The board, firmware and mobile app are designed and built by a single team; delivered by courier to scent machine manufacturers across Turkey, and export-ready.
This page offers an electronic control board for machine manufacturers (PCBA + firmware + app), not a finished scent machine or fragrance oil.
Get a Quote for a Sample and Price
For a quote / sample: +90 554 587 0454 (WhatsApp) · [email protected] · contact form
Three versions, one board platform
The same power and control platform; only the user interface differs. The Bluetooth module sits on a removable socket — the board works even without the module.
V1 — Display + Button
**Local control.** 2×16 LCD + 4 buttons, full on-device setup with 4 menus. No phone required — runs standalone.V2 — Bluetooth-only
**Phone control.** Screenless, compact — all settings and live status from the app; every change is written to the board instantly. Android · iOS · Web.V3 — Hybrid
**Local + phone.** Both LCD/button and Bluetooth: on site from the display, remotely from the phone. Ideal for installation and service.Menu operation — 2×16 LCD, 4 buttons, 4 menus
Keys: LEFT decrease/enter · RIGHT increase/enter · ENT back/save · ESC forward/save. Any key enters the menu; it returns to the home screen after 1 minute of inactivity. Values are saved instantly.
| Menu | Screen (2×16) | Function |
|---|---|---|
| Splash | -MARG KOKU- / VERSION: V3.1.1 | Brand + firmware version |
| Home screen | -MARG KOKU- 21:26 / 2026-08-28 ↔ KOKULANDIRILIYOR / KALAN:12dk:34sn | Alternating: brand/time ↔ status + time remaining |
| 1 · Durations | KOKLNDR: 300 sn / BEKLEME : 60 sn | Spray / wait, 5 s steps |
| 2 · Operating window | BASLAMA: 08:00 / KAPANMA: 18:00 | Start/stop — common to all active days |
| 3 · Week | GUN: PAZARTESI / DURUM:AKTIF | Active / inactive day by day |
| 4 · Clock | 2026-08-28 / 14:35:07 | RTC date / time |
Bluetooth app — “Scent Program”
Android · iOS · Web (Chrome/Edge). Download and showcase: marg.com.tr/scent
Short-range connection over Bluetooth LE, PIN-protected (device QR code). No internet, Wi-Fi or extra module required. The screens are the app’s real interface; the data is representative.
Panel layout — fits your machine’s front panel
The LCD + 4-button board screws directly behind the faceplate: display window on top, a single row of four buttons below, screws at the corners. The power/control board goes inside the body; the panel board connects via a ribbon cable. On the Bluetooth-only version, the panel board and window are not needed.
Technical specifications (common to all three versions)
| Field | Value |
|---|---|
| Processor | TI MSPM0G3507 · ARM Cortex-M0+ 32-bit |
| Power supply | Mains 220–240 V AC · built-in AC-DC, EMI-filtered · no external adapter |
| Output | Single 10 A relay (TIANBO HJR-3FF-S-Z: 10 A/120 VAC · 7 A/240 VAC resistive) · screw MOTOR terminal · drives pump/motor |
| Real-time clock | RTC + CR2025 backup battery · clock and calendar preserved even on power loss |
| Schedule | Weekly: 7 days active/inactive individually · start/stop time common to all active days · spray/wait cycle in 5 s steps |
| Control | Only the LCD display and/or the Bluetooth app — no extra module, panel or internet required |
| Safety | Hardware watchdog (~4 s) + HardFault→reset · firmware v3.1.1 |
| PCB size | Main control/power board 80 × 80 mm · built-in AC-DC module 74.4 × 39.8 mm · removable LCD/button panel board |
| Mounting | 4 × Ø4.0 mm + 4 × Ø2.8 mm corner holes |
| Connectors | AC IN (2p screw terminal) · MOTOR (2p screw terminal) · BLE socket P2 (6p) · serial/service header (5V/GND/RX/TX) · panel ribbon connector |
Safety note: The mains (L/N) and relay output (NO/COM) connections are safety-critical; only authorized technical personnel connect them, according to the wiring diagram. The relay rating is resistive; compatibility with inductive pump models is verified with the technical team. Price, MOQ, lead time and certification details are shared at the quotation stage.
Which version is right for you?
| Feature | V1 Display + Button | V2 Bluetooth-only | V3 Hybrid |
|---|---|---|---|
| 2×16 LCD + 4 buttons | ✓ | — | ✓ |
| Bluetooth module + app | — | ✓ | ✓ |
| On-device control | ✓ | — | ✓ |
| Phone app (Android/iOS/Web) | — | ✓ | ✓ |
| Single relay output (10 A) | ✓ | ✓ | ✓ |
| RTC + weekly schedule | ✓ | ✓ | ✓ |
| Built-in AC-DC power | ✓ | ✓ | ✓ |
| Hardware watchdog (v3.1.1) | ✓ | ✓ | ✓ |
- Staff will set it on site from the display, no phone wanted → V1
- Machine hidden/mounted high, user manages by phone, most compact → V2
- Installer from the display, operator from the phone → V3
Why MARG SCENT?
- Shorten development time — instead of building scheduling, interface, RTC, power and pump control from scratch, start with a board proven in the field (v3.1.1, hardware watchdog)
- Adapter-free, single cable — connect to the mains, plug the pump into the MOTOR terminal; no extra module, no extra panel
- By phone or by display — you choose — the same board; with a display, with Bluetooth, or both
- Board + firmware + app in one team — built with our own electronic board design and assembly infrastructure; delivered across Turkey, export-ready
- Customize for OEM — brand screen, panel layout, connector: OEM customization →
Get a Quote for a Sample and Price
For a quote / sample: +90 554 587 0454 (WhatsApp) · [email protected] · contact form