RF & SDR

The Hackitsune Dual-Band RF Expansion Module for Flipper Zero (400MHz + 900MHz) is a high-performance GPIO add-on designed to significantly extend the Sub-GHz capabilities of the Flipper Zero. This module integrates two dedicated RF transceiver paths covering the ~300–950 MHz spectrum, enabling improved reception sensitivity, stable signal transmission and extended operational range. The dual-module design allows researchers to work across both lower Sub-GHz bands (~300–500 MHz) and higher bands (~800–950 MHz), selectable via an onboard hardware switch. This external module provides a safe interface for extended frequency experimentation, reducing the risk of stressing your flippers onboard components.  Technical Requirements Flipper Zero (not included) External antenna (connected before operation) Compatible Sub-GHz firmware (standard or custom - we recommend momentum firmware) 5V GPIO power enabled in Flipper settings (required) Why 5V Power is Required We designed the bord to maximise stability and provide an low noise, filtered power supply with; Stable power delivery for RF transmission bursts Reduced electrical noise  improving RF performance Prevention of voltage dips during transmission Using the 3.3V rail may result in SD card instability or corruption due to voltage sag, RF signal degradation and reduced range, and unreliable module behaviour under load. How to Use Attach the module to the Flipper Zero GPIO header. Connect a compatible antenna to the selected RF module. Enable 5V GPIO power in Flipper settings. Select the desired frequency band using the onboard switch. Operate using Sub-GHz applications on the Flipper. Important Usage Notes Always connect an antenna before transmitting (Operating without an antenna can damage RF components) Switch frequency bands only when the device is idle. Use appropriate antennas for the selected frequency band and module. Key Features Dual-band RF expansion (400 MHz + 900 MHz) Extends Flipper coverage across ~300–950 MHz Improved range and signal reception Hardware switch for band selection Designed for stable 5V GPIO operation Disclaimer Devices capable of transmitting radio signals must be used in accordance with local radio spectrum regulations. Ensure appropriate licensing and operate only in authorised testing environments. Hackitsune hardware is designed for professional security research, development, and authorised testing purposes only. Users are responsible for ensuring compliance with all applicable laws and regulations in their jurisdiction. Always obtain proper authorisation before interacting with systems, networks, or devices you do not own. Hackitsune accepts no liability for misuse of this product. Use responsibly. 🦊

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The Hackitsune 400MHz RF Expansion Module for Flipper Zero is a high-performance Sub-GHz add-on designed to extend the transmission range, signal stability, and overall RF capability of your device. Built around the E07-400M10S RF module, this expansion provides enhanced performance across the 400 MHz Sub-GHz band, enabling stronger and more reliable signal interaction compared to the internal Flipper radio. This makes it particularly useful for RF research, protocol testing, and signal analysis in environments where increased range or signal clarity is required. The module is designed to integrate with the Hackitsune SPI & Serial Adapter Module, providing a clean and stable interface to the Flipper Zero while maintaining flexibility for use in other DIY projects. Its compact form factor and external antenna support ensure optimal performance in field and lab environments. Technical Requirements Flipper Zero (not included) Hackitsune SPI & Serial Adapter Module (required for Flipper use, sold separately) Compatible Sub-GHz firmware or applications External antenna connected before operation Frequency Coverage Based on the E07-400M10S module, typical supported frequency range is approximately 410 MHz – 525 MHz, depending on configuration and firmware. How to Use Connect the module to the SPI & Serial Adapter (sold separately) Attach the assembly to the Flipper Zero GPIO. (ensure the GPIO 5V power is enabled) Connect a compatible antenna. Launch Sub-GHz applications on the Flipper. Important Usage Notes Always connect an antenna before transmitting Operating without an antenna may damage the RF module Ensure correct frequency configuration before transmission, this module works best at 410 MHz – 525 MHz, pushing beyond these frequencies can damage the module Key Features High-power 400 MHz RF expansion module Based on E07-400M10S (C1101) transceiver Extends range and signal reliability vs onboard radio Designed for SPI & Serial Adapter integration External antenna support for optimal performance Compact and modular design Suitable for authorised RF research Disclaimer Devices capable of transmitting radio signals must be used in accordance with local radio spectrum regulations. Ensure appropriate licensing and operate only in authorised testing environments. Hackitsune hardware is designed for professional security research, development, and authorised testing purposes only. Users are responsible for ensuring compliance with all applicable laws and regulations in their jurisdiction. Always obtain proper authorisation before interacting with systems, networks, or devices you do not own. Hackitsune accepts no liability for misuse of this product. Use responsibly. 🦊

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The Hackitsune SPI and Serial Adapter Module is engineered to extend the functionality of your Flipper Zero while protecting its most critical component: the SD card. By leveraging the Flipper’s dedicated 5V GPIO rail (enabled via GPIO settings), this module provides a clean, stable power supply and GPIO connectivity to external SPI and Serial peripherals without loading the 3.3V rail that services the SD card. Why does this matter? Many external modules draw inconsistent current or introduce electrical noise that can destabilize the 3V rail, risking SD corruption or unexpected resets. The PowerBridge isolates and stabilizes power delivery, ensuring your expansions run clean while your core system remains protected. Designed for Expansion This adapter acts as a reliable foundation for a growing ecosystem of 3rd party and Hackitsune-compatible modules, including: NRF24 (2.4GHz) boards – for wireless research applications 433MHz & 915MHz RF modules – extended sub-GHz experimentation GPS satellite modules – wardriving and geospatial testing Additional SPI & UART-based modules will be added as the ecosystem expands This module is designed for Hackitsune modules, and can support a range of 3rd party modules available online. Always check the pin configuration of modules before connecting to this adaptor and your flipper as incorrect pin/ power connections can damage modules! Whether you're building out a portable RF toolkit or developing custom GPIO integrations, the PowerBridge ensures your setup remains stable under load.

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These compact Antennas measure up at 3cm in length, useful in senarios where you dont want large antennas sticking out.  Despite the size these antennas provide pack 3dBi signal strnegth into a 3cm package. Specifications 433MHz (Frequency): Optimized for devices operating in the UHF band, commonly used for garage door openers, telemetry, IoT sensors, and remote controls. 3dBi (Gain): Amplifies the signal by 3 decibels relative to an isotropic radiator (dBi). This increases range compared to a lower gain antenna. Rubber Antenna (Type): Frequently called a "rubber duck" antenna; flexible, durable, and encased in rubber for indoor/general-purpose use. SMA Male (Connector): Screws directly onto devices with an SMA Female connector (fits Hackitsune 433Mhz Flipper Module and the 400Mhz side of the dual frequency (400-900mhz) flipper module). 3cm (Length): Indicates the physical length, making it ideal for compact applications where space is limited, though efficiency can sometimes be lower than longer alternatives.

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NRF24 Mouse & Keyboard Module for Flipper Zero Slip this little rascal onto your Flipper and watch "air-gapped" illusions wobble. Built for curious defenders, cheeky pen-testers, and anyone who enjoys proving problems exist before they become disasters. This compact nRF24 module gives your Flipper Zero the muscles to scan for, emulate, and interact with nRF24-based wireless HID dongles, the RF technology wireless keyboards and mice often use. It’s great for lab demos, vulnerability audits, and classroom show-and-tell where you want to turn “maybe vulnerable” into “definitely fixed.” Supported by most Flipper firmwares — we recommend Momentum for the smoothest ride. Keyboard & Mouse Jacking Some older wireless keyboards/mice and their tiny USB dongles trust RF traffic they really shouldn’t. When links accept unauthenticated or poorly authenticated packets, attackers can inject keystrokes or mouse actions remotely. That’s keyboard jacking / mouse jacking: scary-sounding, but exactly the kind of thing you should only test for in a controlled, authorised environment. This module helps you demonstrate the risk so you can fix it. Compatibility & firmware Works with most Flipper Zero firmware branches. Momentum firmware recommended. Check your firmware docs for specific nRF24 HID features. What’s in the box nRF24 RF module (Flipper-compatible form factor. This module can be plugged into the flipper zero, or DIY ESP/ Arduino project using breadboard / jumper cables. We recommend using a flipper adaptor for ease of use. Disclaimer Hackitsune hardware is designed for professional security research, development, and authorised testing purposes only. Users are responsible for ensuring compliance with all applicable laws and regulations in their jurisdiction. Always obtain proper authorisation before interacting with systems, networks, or devices you do not own. Hackitsune accepts no liability for misuse of this product. Use responsibly. 🦊

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