BIO-24AD-IRF Smart PIR Sensor Controller
A configurable standalone PIR lighting-control module: 100% on detection, automatic PWM dimming to standby brightness when idle. An optional 2.4GHz RF multi-group network scales it to wide-area control of up to 40 groups.
Hardware
Operation — standalone mode
Standby (20–30% brightness) → detection (1 s fade-in) → 100% hold → return (1 s fade-out). Hold time and detection range tune on site via remote.
RF multi-group network (option)
Up to 40 wire-free groups over 2.4GHz RF. One detection lights the whole group; repeater relay retransmits signals past corners and obstacles; re-detection before switch-off extends the whole group's hold time (recount).
Key features
Smart PWM dimming
100% on detection; 0/10/20/30% standby brightness when idle.
Tunable time & range
Hold 10–90 s (4 steps), detection radius 2.0–8.0 m (4 steps) — set by remote.
Soft lighting
1-second fade in/out on every transition, minimizing glare and eye strain.
SOS emergency mode
Emergency lighting via SOS input; supports maintenance and emergency power scenarios.
Large-scale grouping
Base channel (0–4) × group key (1–8) = up to 40 independent groups, no wiring.
Repeater relay
Retransmits received RF signals to extend range and eliminate blind spots.
Smart recount
Re-detection before switch-off automatically extends the whole group's hold time.
Manual override
Remote 100% ON / 0% OFF ignores the sensor for maintenance work.
Electrical specifications
- Supply voltage (VCC)
- 3.3 – 5 V DC
- Internal regulator
- 3.3 V DC (MCU · RF)
- PWM output
- 0 – 100% (dimming control)
- SOS output
- Digital High/Low
- Connector
- 4-pin — VCC · PWM · SOS · GND (12505WR-04)
- Detection angle (lens)
- 100° / lens 23.3 × 23.3 mm
- Frequency band
- 2.4 GHz ISM
- Channels
- 125
- Data rate
- 250 kbps / 1 Mbps / 2 Mbps
- Rx sensitivity
- -94 dBm (@250 kbps)
- Interface
- SPI (up to 10 MHz)
- Scheme
- One-way broadcast
Remote interface
Everything tunes from the remote — standby brightness (0–30%), hold time (10/30/60/90 s), detection range (2/4/6/8 m), group assignment (1–40), fade on/off and factory reset. The fixture blinks to confirm each command.
Applications
- Underground parking · logistics warehouses
- Smart offices · meeting rooms
- Corridors · lobbies · stairwells · apartment vestibules
- Commercial · public facilities
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