This is a 60 GHz FMCW radar module with the antennas built into the chip package (AiP, two transmit and two receive channels). The narrow 42 × 8 mm strip fits behind a bezel, a lamp cover, or an appliance panel. Kymopsis sells it as a pre-flashed sensor for product developers and integrators: pick the application, and it arrives ready to read over UART.
Applications
Pick one when you order; the board ships pre-flashed with it.
- Gesture recognition: six gestures (swipe left, right, up, down, push, pull) at 0–1 m for range hoods, mirror lights, car-cabin screens and kiosks; mount 0.8–1.5 m above the floor, facing the user. Wall-mount presence reaches about 6 m (chip-platform data).
- Presence, ceiling or wall mount: occupancy and micro-motion for lights, appliances and rooms.
- Presence and fall events: ceiling mount over one person in a small room such as a bathroom (experimental).
- Breathing and heart rate: contactless, one person, board above the chest (research only).
Mounting and coverage
- Gesture: on a wall or a device front, 0.8–1.5 m (2.6–4.9 ft) above the floor, antenna facing the user. Gestures are read 0–1 m (0–3.3 ft) from the antenna, inside a 120° × 120° cone.
- Presence, ceiling mount: antenna facing down, over the area you want to cover.
- Presence, wall mount: antenna facing into the room; range up to about 6 m (20 ft) per the chip-platform data, depending on mounting height and the room.
- Fall events (experimental): ceiling mount over one person in a small room.
- Breathing and heart rate (research): one person, board above the chest.
Figures are the module maker’s typical values, not a Kymopsis lab test.
Avoid these in the detection area
Most false or missed detections come from the room, not the module. Check these before you change any setting:
- Things that move on their own: fans, curtains in a draught, swaying plants, pets. Point the board away from them.
- Metal near the antenna: keep the antenna area clear of metal. A metal case, metallised film or coated glass in front of the board blocks 60 GHz; use a thin plastic cover instead.
- Large mirrors and metal surfaces in the room can create reflected ghost targets.
- A mount that vibrates, such as a door, an appliance lid or a loose bracket, looks like motion to the radar.
- Two radars facing each other at close range can disturb each other; angle them apart.
- A weak 3.3 V supply: the module draws up to 600 mA. Power it from the included LDO module or adapter, not from the small 3.3 V pin of a typical USB-serial adapter.
Not a medical device
Fall, breathing and heart-rate outputs are experimental research signals. The board has no medical certification and must not be used to diagnose, monitor or treat any condition, or as a safety or emergency alarm.
AiP or PCB-antenna board?
Both run gesture and presence applications and the same open-source demos; pick by size and how you connect it. The AiP board has its antennas inside the chip package, so it fits a 42 × 8 mm strip for tight spaces; the PCB-antenna board carries 2T2R patch antennas on a 25 × 31.5 mm board with castellated pads and 2.0 mm pitch headers, and reflashes with a clip. See the PCB-antenna board.
Specifications
From the supplier datasheet, not a Kymopsis lab report.
- Frequency: 57–64 GHz, FMCW
- Antenna: antenna-in-package, 2T2R; stated gain 4 dBi typical
- Stated transmit power: 12 dBm typical
- Stated field of view: ±60° horizontal, ±60° elevation
- Gesture recognition: 6 gestures, stated accuracy ≥ 95 %, read 0–1 m from the antenna within a 120° × 120° cone
- Interface: UART0 at 3.3 V TTL, 115200 baud 8N1 (gesture output), and GPIO output
- Supply: 3.3 V typical; maximum current 600 mA; average power ≤ 2 W. Your USB-serial adapter or external 3.3 V supply must deliver at least 100 mA
- Size: 42 × 8 × 6.73 mm including the connector
- Operating temperature: −20 °C to 85 °C; storage −40 °C to 85 °C
- Connection lead included: plugs into the board connector and ends in female Dupont plugs for 2.54 mm headers
Pinout
1 3.3 V · 2 TX2 (GPIO / UART2 TXD) · 3 RX0 (UART0) · 4 TX0 (UART0 TXD) · 5 RST (internal pull-up, active low) · 6 GND · 7 3.3 V · 8 SWDIO · 9 SWCLK · 10 GND. SWDIO and SWCLK are for debugging and flashing.
Gesture output over UART
With the gesture firmware, the board sends one message on UART0 (115200 baud, 8N1) each time it recognises a gesture; you do not need to poll it. The message type is 0x1000 and its 2-byte payload is the gesture code: 0 up, 1 down, 2 left, 3 right, 4 hand toward the board, 5 hand away from the board. Wire TX0 (pin 4) to your adapter or microcontroller RX, RX0 (pin 3) to TX, plus 3.3 V and GND. The datasheet has the full frame layout, a quick start and the boot-mode table.
What you need
Sensor + USB-TTL adapter (3.3 V LDO): plug the lead into the adapter and the adapter into a USB port. Its on-board 3.3 V LDO regulator powers the radar from USB, so you do not rely on the small 3.3 V output of a typical USB-serial adapter, which may not cover the module’s current.
Sensor only: the sensor, its connection lead and a free AMS1117 3.3 V LDO module (rated 800 mA) to power it from any 5 V source. Add any 3.3 V UART: a USB-serial adapter or a microcontroller.
Firmware
The sensor is flashed for the application you pick and is sold as a sensor, not as a reflashing platform: its flash chip is too small for a programmer clip. Need another application? Order a second sensor pre-flashed with it. If you want to switch firmware builds yourself, choose the PCB-antenna development kit, which runs the same applications and reflashes with a clip.
Open-source demos
These projects run on either 60 GHz board: the AiP sensor or the PCB-antenna DIY board. Order the board with the application named in each project’s README.
- Radar desk buddy: an ESP32-S3 desk companion whose eyes and figure follow you (Presence, wall mount).
- Radar auto-lock: locks your PC when you walk away and wakes it when you return, as a USB or Bluetooth keyboard (Presence, wall mount).
Guides and background
- Radar Principles 11: Micro-Doppler, Gestures and Vital Signs
- Radar Principles 14: MIMO Radar and the Virtual Array
- Radar Principles 12: Angle of Arrival from Phase
- Radar Desk Buddy: ESP32-S3 + 60 GHz mmWave Radar Desk Pet
- Radome Design for 60 & 77 GHz Radar: Thickness, Angle, Water
Datasheet
Download the Kymopsis datasheet (PDF): specifications, pin functions, mechanical data, gesture quick start, UART message format, and integration notes.
Regulatory status
Not FCC certified, and no CE or other certification is claimed. It is sold for evaluation and integration by engineers, not as an authorized end product. If your own product needs equipment authorization, the B2B program can scope the integration and the lab and TCB process.
Questions
How do I read gestures with an ESP32 or Arduino?
Open a 3.3 V UART at 115200 baud 8N1 on the board’s TX0 pin and parse the 0x1000 messages; each one carries a single gesture code from 0 to 5. The datasheet lists the frame fields, and the decoder in the open-source Radar Desk Buddy project shows a working parser for this frame format.
How far away can I make the gestures?
Up to 1 m from the antenna, inside a 120° × 120° cone, with the gesture firmware.
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