Interface
- EMWaver
- Your phone's screen — live timing charts
- Flipper Zero
- 128×64 monochrome screen
- Arduino
- External serial monitor or display
One board · 433 MHz + infrared · coming soon
Capture, decode,and replay signalsfrom your phone.
EMWaver is a sub-GHz and infrared tool on a single board that plugs straight into your phone. Capture, decode, and replay real 433 MHz radio and IR remotes from the iPhone and Android apps. No cable, no adapter, no driver, no account.
433.92 MHzIR · 38 kHzOOK captureUSB-MIDI
1/4
CH1 433.92 MHz · OOK
The platform
One board, two apps, nothing in the cloud.
01 · The device
One board. Sub-GHz and infrared.
STM32F042 · CC1101 433 MHz · IR RX/TX.
A single board on a USB-C plug: a sub-GHz radio with a 433 MHz chip antenna, and an IR receiver with a high-current emitter. The firmware owns the microsecond-tight timing, so every capture and replay lands exactly on the edge.
See the hardware→
02 · Two apps
Your phone is the control room.
iPhone and Android. No driver, no adapter.
Five screens on both platforms — Home, Remotes, Sampler, Sub-GHz and Packet. The board speaks class-compliant USB-MIDI, which is the trick that makes it work on iOS at all: no MFi chip, no certification, no Bluetooth pairing.
Read the docs→EMWaver · Sub-GHzUSB-MIDIconnected
CH1 · 433.92 MHz · OOK
tick 10µs
● RecordStop↻ Retransmitring 65536 B
›capture 433.92 MHz · OOK4096 samples → timing chart
03 · Nothing leaves the phone
Fully local. No accounts.
No cloud, no relay, no sign-in.
Remotes, captured signals and device state stay on your phone. There is nothing to pair, nothing to provision, and no account to make — the only network call either app makes is to the infrared database.
How it works→
01
02
03
Specifications
Bench-grade hardware, pocket-sized.
One board that does two things well. There are no GPIO headers, no Wi-Fi and no scripting language — earlier EMWaver boards had all of it, and that breadth is exactly what made them hard to finish and hard to carry. This one is small on purpose.
MCU
STM32F042G6U6 · 48 MHz · native USB
Sub-GHz
CC1101 · 433.05–434.79 MHz
Infrared
38 kHz receive + high-current emit
Capture
Raw OOK + IR timing · µs-precise
Connection
USB-C plug · class-compliant USB-MIDI
Power
Bus powered — no battery to charge
Trailer
See EMWaver in motion.
The fastest way to understand EMWaver: a pocket signal lab that captures, decodes, and replays real RF and infrared from a single board you drive from your phone.
Open on YouTubeDifferent from handhelds and dev boards
EMWaver vs Flipper Zero vs Arduino
EMWaver is a Flipper-class explorer that trades the cramped handheld and the firmware-flash loop for the screen already in your pocket. It does two things — 433 MHz and infrared — and it does them well.
Sub-GHz + IR
- EMWaver
- CC1101 433 MHz + IR RX/TX built in
- Flipper Zero
- Sub-GHz + IR built in
- Arduino
- Add modules and wiring yourself
Control
- EMWaver
- Native iPhone and Android apps
- Flipper Zero
- Handheld, on-device only
- Arduino
- USB-tethered to a host
Workflow
- EMWaver
- Purpose-built Sub-GHz + IR screens
- Flipper Zero
- Apps you build and install
- Arduino
- Sketch compile/upload loop
Carry
- EMWaver
- USB-C plug — pocket-sized, bus powered
- Flipper Zero
- Handheld with a battery to charge
- Arduino
- Board, cables and a host
| EMWaver | Flipper Zero | Arduino | |
|---|---|---|---|
| Interface | Your phone's screen — 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 | Native iPhone and Android apps | Handheld, on-device only | USB-tethered to a host |
| Workflow | Purpose-built Sub-GHz + IR screens | Apps you build and install | Sketch compile/upload loop |
| Carry | USB-C plug — pocket-sized, bus powered | Handheld with a battery to charge | Board, cables and a host |
Get started
From box to first capture in three steps.
Meet EMWaver.
One board, one phone. Capture, decode, and replay real signals — 433 MHz and infrared, fully local, ready in seconds.