Key Features
⚡ Compact Design
Plug directly into Flipper Zero's GPIO header. Designed for permanent attachment with compact form factor - compactness was the key motivation behind development.
📡 Dual Radio System
Wi-Fi 2.4 GHz (ESP32-PICO-V3-02) + Sub-GHz 433 MHz (TI CC1101) in one compact module.
🔧 Replaceable Antennas
2× SMA female connectors allow you to swap antennas for optimal performance in any scenario.
🛜 Marauder firmware
WiFi analysis, traffic monitoring, and wireless penetration testing with Marauder firmware.
⚙️ Independent Power Control
Micro switches for Wi-Fi and Sub-GHz radios. Save battery by disabling unused modules.
✨ Community Open Hardware
Transparent design with complete schematics and PCB files. Free to build, study, and customize for personal use.
Gallery
📷 Product Photos
Demo Video
Technical Specifications
| Parameter | Specification |
|---|---|
| Wi-Fi Radio | ESP32-PICO-V3-02 (2.4 GHz) |
| Sub-GHz Radio | TI CC1101 (433 MHz) |
| Antenna Connectors | 2× SMA Female |
| Power Supply | 3.3V via Flipper GPIO |
| Power Consumption (Sub-GHz) | 20-40 mA |
| Power Consumption (Wi-Fi Idle) | ~40 mA |
| Power Consumption (Wi-Fi Active) | 125-330 mA |
| ESP32 Interface | UART/Serial via GPIO |
| CC1101 Interface | SPI Bus (shared with Flipper) |
| Firmware Support | Marauder v1.10.2 (ESP32 PICO port) |
| PCB Revision | v2.1 |
Firmware Upload
To upload or update the ESP32 Marauder firmware, you need to connect via a USB-TTL (UART) adapter to the GPIO pin header on the bottom side of the TwinWave PCB.
🔌 UART Connection (10-pin header - bottom side)
Connect USB-TTL adapter (CP2102, CH340, FT232) to the 10-pin GPIO header on the bottom side of TwinWave PCB:
| Pin 1 (3V3) | → | VCC (3.3V only!) |
| Pin 3 (GND) | → | GND |
| Pin 5 (RX) | → | TX (adapter) |
| Pin 6 (TX) | → | RX (adapter) |
⚠️ Hold BOOT, press RESET, release both to enter flash mode.
⚡ Web Flasher (Recommended)
Flash firmware directly from your browser — no installation required!
- Connect USB-TTL adapter to TwinWave (see wiring diagram above)
- Put ESP32 into boot mode (hold BOOT, press RESET, release both)
- Open the Web Flasher and follow the wizard
Downloads
Download all necessary files for manufacturing your own TwinWave module from the latest GitHub release.
📌 Pin Header Assembly: It is recommended to assemble the pin header yourself (GPIO connector). This allows you to adjust the pin length to perfectly fit your specific Flipper Zero configuration – whether it has a protective case or not.
⚡ PCB Manufacturing
Gerber, BOM and Pick & Place files for PCB fabrication services (JLCPCB, PCBWay, etc.)
📐 PCB Stackup: JLC04161H-7628
| Top Layer | Copper 0.035mm |
| Prepreg | 7628×1 (0.21mm) |
| Inner L2 | Copper 0.0152mm |
| Core | 1.065mm |
| Inner L3 | Copper 0.0152mm |
| Prepreg | 7628×1 (0.21mm) |
| Bottom Layer | Copper 0.035mm |
Total: ~1.1mm H/HOZ with copper
🖨️ 3D Printed Case
STL file for protective enclosure (single piece). Print with PLA, PETG or Resin material.
💾 Marauder Firmware
Custom ESP32 Marauder port for TwinWave (ESP32-PICO-V3-02). Based on ESP32 Marauder by justcallmekoko.
⚡ Web Flasher🔧 PCB Project Source
The complete PCB project can be opened in EasyEDA Pro. Project file: hardware/ProDoc_TwinWave_2026-01-11.epro