General specifications

Property	Specification
Switching Devices	Up to 16A (domestic use)
Dimming lights	LEDs (certain types) on 110V/240V or incandescent light bulbs
Measuring	Current and voltage (5kHz)
Overview	Energy usage (real-time for now)
Timer function	Timer functionality
Communication	Bluetooth Low Energy (BLE) 4.0 and up
Tracks	Smartphones
Tracking accuracy	1.5-4.0 meter
Maximum range	20-70 meter
Proximity detection	Requires 1 particular Crownstone “in sight”
Room-level presence detection	Requires 4 Crownstones in sight (not necessarily per room)
Switchcraft function	Simultaneous use with light switch (with tiny adaptation)
Network	Bluetooth Mesh connects Crownstone-to-Crownstone
Chipset	Nordic nRF52832, 64 kB RAM, 512 kB FLASH
Beacon function	iBeacon
Energy consumption of device itself	250 mW
Soft-fuse function	Limit extreme currents or switch off with unexpected behavior
Temperature function	Switch off with extreme temperatures
Dimensions	51x46x13mm (LxWxH), 40 gram
Open-source	Software available at https://github.com/crownstone
Mobile phones supported	iOS and Android
Battery	Not required!

Products

You can find our products at:

Product	Website link
Built-in One (1 unit)	Built-in One
Built-in One (10 units)	Starter Kit
USB dongle	USB dongle
Hub	Not required. Instructions to build your own coming soon

You can also find our products in high-end home automation shops.

More detailed list of functions

This is just a list off basic functions. Take a look at https://crownstone.rocks for more information. Some examples:

Property	Specification
Authentication roles	Admin, member, guest
Dumb house mode	Convenient for parties or renting out your appartment
Voice assistant integration	Alexa, Google Home, see “works with” page
Home assistant integration	Through HACS, see manual
Smart watch integration	Apple Watch (only control, not indoor positioning
Homey integration	Coming soon (March 2021)
Smart lights	Philips Hue coming soon
Instantanous power measurements	Real-time power measurements arriving on phone
Reacting on close proximity	Tap to toggle (a bit like NFC)
Reacting on moderate proximity	Presence (at home or not)
Reacting on room-level presence	Indoor positioning
User-controlled upload of data to the cloud	See privacy settings in app (opt-in!)
Visualize other users in the app	See privacy settings in app (opt-in!)
Send commands through the internet	Restricted (depends on hub)
Scheduler	Set timers and schedules
Smart timer	Set timers only when dark, etc.
Location-based messages	Send a message just when someone enters a room
Multiple users	Only turn off the lights when everyone leaves a room
Firmware updates (new stuff!)	Through the Crownstone app (approx. every 2-3 months)
Very large mesh	Support for 255 devices in the Bluetooth Mesh

Examples of features that are currently worked on are the indoor positioning of wearables, the ability to run your own Arduino code on the Crownstones, and all kinds of integrations.