Wireless receiver module UniRec1

radioAMFM

Description
Compact universal receiver (41 × 31 × 11 mm) compatible with most radio remote controls transmitting between 224 MHz and 868 MHz. Supports AM/OOK and FSK/FM, fixed and rolling codes. Can be programmed to receive one or two frequencies (including different modulations).

Main operation
On reception of a valid code the receiver activates an optoisolator between Switch+ and Switch-, emulating a low‑voltage pushbutton input for an electronic control board (e.g. gate opener). Output is opto‑isolated: max 50 mA, max 40 Vdc. Operating frequency and output behavior are programmable (bistable, hold‑to‑run, timer: 250 ms–60 min). Memory stores up to 1000 remotes (actual number depends on code complexity; e.g. up to ~600 KeeLoq rolling‑code remotes).

Installation and wiring

• Connect the two wires marked "Supply" to the power source.
• Connect Switch+ to the positive terminal of the pushbutton input on the controlled board.
• Connect Switch- to the negative terminal of the pushbutton input on the controlled board.

Use a tester to verify the controlled board input voltage is < 40 Vdc and current < 50 mA.

Notes on AC inputs
If the controlled board pushbutton input uses AC, select a receiver variant with relay outputs for AC control (other models available).

Features

• Wireless control of electronic boards with low‑voltage DC pushbutton inputs (max 40 V, 50 mA).
• Very compact: 41 × 31 × 11 mm.
• Supply range: 7–36 Vdc or 7–27 Vac; internal DC/DC converter for low consumption.
• Five prewired 20 cm wires for easy wiring: 1 antenna, 2 supply, 2 outputs (Switch+ / Switch-).
• Antenna wire: cut to ~17 cm for 433–434 MHz or ~8 cm for 868 MHz; keep flat, horizontal or vertical.
• User‑selectable frequencies (many presets; some frequencies restricted in the EU).
• Supports OOK (AM) and FSK (FM); FM deviations 12 and 24 kHz; AM with standard and narrow bandwidth.
• Twin‑frequency mode: single or two frequencies/modulations programmable simultaneously.
• Compatible with a wide range of fixed and rolling code remotes; different types may coexist.
• Supports learning via master remotes (remote enabling for 10 s).

Frequencies supported (user‑selectable examples)
433.42, 433.92, 434.15, 434.42, 868.3, 868.5, 868.8, 315*, 224.500*, 224.750*, 270*, 280*, 284*, 286*, 287*, 288*, 289*, 290*, 292*, 300*, 302*, 303*, 306*, 310*, 318*, 330*, 340*, 390*, 403.55*, 418* MHz
Note: frequencies marked with * cannot be used inside the EU. Transmitter frequency must be stable; the receiver does not support transmitters without a crystal or SAW resonator (unstable transmitters around ~300 MHz).

Typical applications / use cases

• Activate the "start" input of gate, garage door or traffic barrier control boards.
• Control devices originally using obsolete remote frequencies (e.g. 418 MHz, 315 MHz).
• Increase the range of compatible remotes for an existing opener by accepting different brands/models and frequencies.
• Add wireless control to a control board that lacks an integrated RF input.

Learning and programming
Programming is done with the Prog button. The second receiving frequency and its modulation can be set; the second frequency can be enabled/disabled. Output modes, timers and sensitivity limits are configurable to reduce spurious long‑range triggers.

Packaging and notes
Manufactured in Europe. Supplied in a transparent resealable recyclable clamshell with printed multilingual instructions. OEM customization available for volume orders.

Technical specifications

• Model: UniRec1 (single‑channel universal multi‑frequency receiver).
• Dimensions: 41 × 31 × 11 mm.
• Supply: 7–36 Vdc or 7–27 Vac (polarity not important on supply wires when DC supply used).
• Power: low consumption via internal DC/DC converter.
• Outputs: opto‑isolated switch output (Switch+ / Switch-) emulating pushbutton; max output current 50 mA; max voltage 40 Vdc.
• Antenna: single wire; cut to ~17 cm for 433–434 MHz or ~8 cm for 868 MHz; keep flat, horizontal or vertical.
• Supported modulations: OOK (AM) standard and narrow bandwidth; FSK (FM) with 12 kHz and 24 kHz deviation.
• Receiving: single or twin‑frequency (two frequencies/modulations simultaneously programmable).
• Memory: up to 1000 remote controls (dependent on code complexity).
• Output modes: bistable, hold‑to‑run, timer configurable from 250 ms to 60 minutes; menu options for output polarity and special behaviours (e.g. electric lock before motor activation).
• Programming: via Prog button; supports master remotes for remote enabling of learning.
• Packaging: supplied in resealable clamshell; instructions included.