The EMWaver device
One board that does two things well: 433 MHz and infrared. It plugs straight into your phone — no cable, no adapter, no driver, no account. Small enough to forget it is in your pocket.
It 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. iPhone and Android see it the moment it is plugged in.
Not for sale yet. The board is headed for radio certification on the EU 433 MHz band, and the apps are being finished against the existing prototypes.
What it does
Infrared remotes
Browse IRDB — the crowd-sourced database of real remotes — pick your brand and model, and the keys appear as a grid you can press. Or point a remote at it and learn a key directly.
Sub-GHz capture and replay
Capture the raw 433 MHz waveform off the air, look at the timing, and send it back out. The full CC1101 register model is there when you want it.
Packet mode
Fixed-length packet transmit and receive, with RSSI and link quality on every frame.
Specifications
- Radio
- TI CC1101 — 433.05–434.79 MHz
- Infrared
- 38 kHz receiver + high-current emitter
- MCU
- STM32F042G6U6, 48 MHz, native USB
- Connection
- USB-C plug, class-compliant USB-MIDI
- Works with
- iPhone and Android, no adapter, no driver
- Power
- Bus powered — no battery to charge
What it deliberately is not
There are no GPIO headers, no Wi-Fi, no scripting language, and no cloud. 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.
Firmware updates run from the web flasher on a desktop or an Android phone.