Interface
- EMWaver Air
- Full browser UI — live timing charts
- Flipper Zero
- 128×64 monochrome screen
- Arduino
- External serial monitor or display
EMWaver Air · runs on any ESP32-S3
Capture, decode,and replay signalsfrom anywhere.
EMWaver Air is a cloud-connected sub-GHz and infrared tool on a single board. Power it on, open emwaver.ai, and capture, decode, and replay real 433 MHz radio and IR remotes — on the Air, or any ESP32-S3 board you already own. No app to install, no driver to hunt.
433.92 MHzIR · 38 kHzOOK capturewss · paired
1/4
CH1 433.92 MHz · OOK
The platform
One platform, any ESP32-S3, one browser.
01 · The device
One board. Sub-GHz and infrared.
ESP32-S3 · CC1101 433 MHz · IR RX/TX.
A single all-in-one board: a sub-GHz radio with a 433 MHz chip antenna, and an IR receiver with dual IR LEDs. The firmware owns the microsecond-tight timing, so every capture and replay lands exactly on the edge.
See the hardware→
02 · Web-native
The browser is the control room.
Open emwaver.ai. Nothing to install.
Two purpose-built workspaces run right in the tab — Sub-GHz for capturing and replaying 433 MHz OOK, and Infrared for learning and browsing remotes. Live timing charts, a signal library, no toolchain, no driver hunt.
Open the app→emwaver.ai/airair-bd0598connected
CH1 · 433.92 MHz · OOK
tick 10µs
● RecordStop↻ Retransmitring 65536 B
›capture 433.92 MHz · OOK4096 samples → timing chart
03 · Control from anywhere
Your Air dials home.
An outbound wss relay pairs device and browser.
No port forwarding, no firewall holes. The Air opens a secure WebSocket to emwaver.ai and a relay pairs it to your browser — so you can capture and retransmit from across the room or across the world.
How it works→
01
02
03
Specifications
Bench-grade hardware, pocket-sized.
These are the EMWaver Air's specs. The platform itself — firmware, relay, and the browser app — runs on any ESP32-S3, so you can also flash a board you already own and bring whatever radios and modules you wire up.
MCU
ESP32-S3 · dual-core 240 MHz · USB 2.0
Sub-GHz
CC1101 · 433 MHz chip antenna
Infrared
IR receive + dual IR-LED transmit
Capture
Raw OOK + IR timing · µs-precise
Link
Wi-Fi → outbound wss relay
Power
USB-C · 5 V
Trailer
See the EMWaver Air in motion.
The fastest way to understand EMWaver: a cloud-connected signal lab that captures, decodes, and replays real RF and infrared from a single board you drive in the browser.
Open on YouTubeDifferent from handhelds and dev boards
EMWaver Air vs Flipper Zero vs Arduino
The Air is a Flipper-class explorer that trades the cramped handheld and the firmware-flash loop for a real browser UI and a cloud-paired link. Don't want the dedicated board? The same platform runs on any ESP32-S3 you already own.
Sub-GHz + IR
- EMWaver Air
- CC1101 433 MHz + IR RX/TX built in
- Flipper Zero
- Sub-GHz + IR built in
- Arduino
- Add modules and wiring yourself
Control
- EMWaver Air
- Web app, cloud-paired from anywhere
- Flipper Zero
- Handheld, on-device only
- Arduino
- USB-tethered to a host
Workflow
- EMWaver Air
- Purpose-built Sub-GHz + IR workspaces
- Flipper Zero
- Apps you build and install
- Arduino
- Sketch compile/upload loop
Storage
- EMWaver Air
- Unlimited (host + cloud)
- Flipper Zero
- microSD card
- Arduino
- Limited board flash
| EMWaver Air | Flipper Zero | Arduino | |
|---|---|---|---|
| Interface | Full browser UI — live timing charts | 128×64 monochrome screen | External serial monitor or display |
| Sub-GHz + IR | CC1101 433 MHz + IR RX/TX built in | Sub-GHz + IR built in | Add modules and wiring yourself |
| Control | Web app, cloud-paired from anywhere | Handheld, on-device only | USB-tethered to a host |
| Workflow | Purpose-built Sub-GHz + IR workspaces | Apps you build and install | Sketch compile/upload loop |
| Storage | Unlimited (host + cloud) | microSD card | Limited board flash |
Bring your own board
The Air is the easy path — not the only one.
EMWaver is a platform, not just a board. The firmware, the wss relay, and the browser app all run on any ESP32-S3 — so you can buy a finished Air for the all-in-one experience, or flash a dev kit or your own design and get the same cloud-paired signal lab.
Any ESP32-S3
Dev kits, custom boards, your own PCB — if it's an ESP32-S3, the EMWaver firmware runs on it.
Flash once
Point the board at the relay, flash the firmware over USB-C, and it dials emwaver.ai like an Air.
Same browser app
The Sub-GHz and Infrared workspaces and the live timing charts work the same — your board just appears as a device.
Wire a radio + IR
Wire a CC1101 for 433 MHz and an IR LED to the standard pins, and you have the full sub-GHz + infrared tool.
Get started
From box to first capture in three steps.
Meet the EMWaver Air.
One board, one browser. Capture, decode, and replay real signals — open hardware, cloud-paired, and ready in minutes.