Technical Specifications

Complete technical specifications for the OpticWorks RS-1 Presence Sensor.

Physical Specifications

Dimensions & Weight

Specification	Value
Dimensions	85mm × 85mm × 32mm (3.3” × 3.3” × 1.3”)
Weight	145g (5.1 oz)
Mounting	Magnetic, adhesive, or screw mount
Enclosure	ABS plastic with soft-touch finish
Color	Matte white

Physical Features

         ┌──────────────────────┐
         │     ◯ Status LED     │
         │                      │
    ┌────│   ┌──────────────┐   │────┐
    │    │   │ Radar Window │   │    │
    │    │   └──────────────┘   │    │
    │    │                      │    │
    │    │   ┌──────────────┐   │    │
    │    │   │Camera Window │   │    │
    │    │   └──────────────┘   │    │
    └────│                      │────┘
         │      OpticWorks      │
         └──────────────────────┘
                   Front

         ┌──────────────────────┐
         │                      │
         │   ┌──────────────┐   │
         │   │ Magnetic     │   │
         │   │ Mount Plate  │   │
         │   └──────────────┘   │
         │                      │
         │  ○ Reset  ─┬─ USB-C  │
         └────────────┴─────────┘
                   Back

Connectors & Ports

Port	Type	Purpose
Power/Data	USB-C	Power input, optional wired data
Reset	Recessed button	Factory reset, recovery mode
Debug	Internal pads	Firmware development only

Sensor Specifications

Radar Module

Specification	Value
Type	FMCW mmWave Radar
Module	HLK-LD2450 (or equivalent)
Frequency	24 GHz ISM band
Bandwidth	250 MHz
Max Range	6 meters (20 feet)
Range Resolution	0.75m
Angular Resolution	15°
Field of View	120° horizontal × 60° vertical
Update Rate	30 Hz
Multi-Target	Up to 5 simultaneous targets

Camera Module

Specification	Value
Sensor	2MP CMOS
Resolution	1920 × 1080 (used at 640×480 for processing)
Frame Rate	15 fps (processing)
Field of View	90° diagonal
Focus	Fixed, 0.5m to infinity
Night Vision	IR-enhanced low-light
Purpose	Sensor fusion, not recording

Processing Unit

System-on-Chip

Specification	Value
SoC	Rockchip RV1106G3
CPU	ARM Cortex-A7 @ 1.2 GHz
NPU	0.5 TOPS neural processing unit
RAM	256MB DDR3L
Storage	512MB NAND flash
OS	Linux 5.10 (hardwareOS)

Processing Capabilities

Capability	Specification
Detection Latency	< 50ms
Tracking Update Rate	30 Hz
Position Accuracy	±15cm (with fusion)
Fusion Algorithm	Extended Kalman Filter
On-Device ML	Position refinement, target classification

Wireless Specifications

WiFi

Specification	Value
Standard	IEEE 802.11 b/g/n
Frequency	2.4 GHz only
Security	WPA2-PSK, WPA3-Personal
Antenna	Internal PCB antenna
Range	Up to 30m (indoor, line of sight)
IPv4	DHCP, Static IP supported
IPv6	Supported

Bluetooth

Specification	Value
Version	Bluetooth 5.0 LE
Purpose	Initial setup, local control
Range	Up to 10m
Pairing	Secure bonding

Thread/Matter

Specification	Value
Thread	IEEE 802.15.4
Matter	Version 1.2
Device Types	Occupancy Sensor, Motion Sensor
Multi-Admin	Supported

Power Specifications

Electrical

Specification	Value
Input Voltage	5V DC
Input Current	2A maximum
Connector	USB Type-C
Power Consumption	3-5W typical

Power States

State	Power Draw	Description
Active	4.5-5W	Detection in progress
Idle	3W	No presence, monitoring
Night Mode	2.5W	Reduced processing
OTA Update	5W	Firmware updating

Power Adapter Requirements

Requirement	Minimum	Recommended
Voltage	5V	5V
Current	2A	2.4A
Standard	USB-A	USB-C PD

Environmental

Operating Conditions

Condition	Range
Temperature	0°C to 40°C (32°F to 104°F)
Humidity	10% to 90% RH, non-condensing
Altitude	Up to 3000m (10,000 ft)

Storage Conditions

Condition	Range
Temperature	-20°C to 60°C (-4°F to 140°F)
Humidity	5% to 95% RH, non-condensing

Protection

Rating	Value
IP Rating	IP20 (indoor use only)
Drop	Survives 1m drop to hard floor

Detection Performance

Coverage Area

Mounting Height	Coverage Radius	Coverage Area
2.0m	4.5m	64 m²
2.5m	5.5m	95 m²
3.0m	6.0m	113 m²

Detection Capabilities

Capability	Performance
Moving Person	99% detection rate
Still Person (sitting)	97% detection rate
Still Person (lying)	95% detection rate
Through Glass	Limited (not recommended)
Through Walls	No
Multi-Room	No (use multiple sensors)

Accuracy

Metric	Typical	Best Case
Position (horizontal)	±20cm	±10cm
Position (vertical)	±30cm	±15cm
Occupancy Count	95% accurate	99% (≤3 people)
Zone Detection	98%	99%

Response Time

Event	Latency
Presence Detection	< 200ms
Absence Detection	Configurable (5-300s)
Motion Detection	< 50ms
Zone Enter/Exit	< 100ms

Connectivity & Protocols

Supported Protocols

Protocol	Version	Purpose
MQTT	3.1.1 / 5.0	Primary integration
HTTP/REST	1.1	Local API
WebSocket	RFC 6455	Real-time streaming
HomeKit	HAP over IP	Apple Home
Matter	1.2	Universal smart home
mDNS	RFC 6762	Local discovery

MQTT Topics

opticworks/rs1/{device_id}/state          # State (JSON)
opticworks/rs1/{device_id}/availability   # online/offline
opticworks/rs1/{device_id}/command        # Commands
opticworks/rs1/{device_id}/config         # Configuration

REST API Endpoints

Endpoint	Method	Description
`/api/status`	GET	Current state
`/api/config`	GET/PUT	Configuration
`/api/zones`	GET/POST/DELETE	Zone management
`/api/targets`	GET	Target positions
`/api/calibrate`	POST	Trigger calibration
`/api/ota`	POST	Firmware upload

Software

Firmware

Specification	Value
OS	hardwareOS (Linux 5.10)
Update Method	OTA (automatic) or USB
Update Channel	Stable, Beta
Rollback	Automatic on boot failure

App Requirements

Platform	Minimum	Recommended
iOS	17.0	Latest
iPhone	12 Pro (LiDAR)	14 Pro or newer
Storage	200MB	500MB

Browser Support (Local Web UI)

Browser	Minimum Version
Chrome	100+
Firefox	100+
Safari	15+
Edge	100+

Regulatory Compliance

Certifications

Region	Certification
USA	FCC Part 15
Canada	ISED
Europe	CE, RED
UK	UKCA
Australia	RCM

Standards

Standard	Scope
FCC Part 15.249	24 GHz radar emissions
EN 300 440	Short range devices
EN 62311	EMF exposure
EN 55032	Multimedia equipment EMC
EN 55035	Immunity

Radar Safety

The 24 GHz radar operates at very low power (< 10 mW EIRP) and poses no known health risks. The emission levels are orders of magnitude below safety limits set by FCC and ICNIRP.

Package Contents

What’s in the Box

Item	Quantity
RS-1 Sensor Unit	1
USB-C Power Adapter (5V 2A)	1
USB-C Cable (1.5m)	1
Magnetic Mount Plate	1
3M Adhesive Pads	2
Mounting Screws	2
Quick Start Guide	1
Warranty Card	1

Model Variants

Model	Description	Availability
RS-1	Standard (white)	Now
RS-1-B	Black housing	Q2 2024
RS-1-P	PoE powered	Q3 2024

Warranty & Support

Item	Duration
Limited Warranty	2 years
Firmware Updates	5 years minimum
Customer Support	Lifetime

Dimensions Diagram

                    85mm
         ◄──────────────────────►
         ┌──────────────────────┐   ▲
         │                      │   │
         │                      │   │
         │                      │   │  85mm
         │                      │   │
         │                      │   │
         │                      │   │
         └──────────────────────┘   ▼
                   Front View

         ┌──────────────────────┐   ▲
         │▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓│   │ 32mm
         └──────────────────────┘   ▼
         ◄──────────────────────►
                    85mm
                   Side View

Comparison: RS-1 vs. Traditional PIR

Feature	RS-1	PIR Sensor
Stationary detection	✓ Yes	✗ No
Position tracking	✓ Yes	✗ No
Multi-person	✓ Up to 5	✗ No
Zone detection	✓ Yes	✗ No
Through obstructions	✓ Furniture	✗ No
Pet immunity	✓ Configurable	✗ Limited
False positives	Low	Medium
Power consumption	3-5W	0.1W
Cost	Higher	Lower

Next Steps

Quick Start Guide - Get set up
Hardware Overview - Physical features
Troubleshooting - Solve issues