mayhem-firmware

Table of Contents

WARNING

Common to all TABs
Config Tab
Scan Tab

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WARNING

This application is intended solely for experimental purposes. It should not be used for any other reason.
It is your responsibility to adhere to all local, state, national, and international laws while conducting experiments with this application. Any illegal activities are strictly prohibited.
This application is not designed for use by individuals under the age of 18. By conducting an experiment with this application, you confirm that you are of legal age in your jurisdiction.
All experiments conducted using this application are done at your own risk. We are not liable for any damages or losses that may occur as a result of your use.
We do not and had never provide(d) any form of assistance or support for your experiments. You are solely responsible for any outcomes or consequences that may arise.
By using this application, you agree to indemnify and hold harmless the developers and all associated parties from any and all claims, damages, losses, liabilities, costs, and expenses (including legal fees) arising out of your use of this application or your violation of these terms.
This application is provided "as is" without warranty of any kind, either express or implied, including, but not limited to, the warranties of any case.
We reserve the right to modify these terms and conditions at any time without prior notice. Your continued use of this application following any changes signifies your acceptance of our updated terms.

On–off keying (OOK) denotes the simplest form of amplitude-shift keying (ASK) modulation that represents digital data as the presence or absence of a carrier wave. OOK system often have a coding sequence. OOK is often used in remote garage and gate keys, often operating at 315 MHz or 433.92 MHz. Most modern systems though use a rolling code system to prevent Replay attacks.

The App has a number of Pre-configured Device types such as 2260,2262,16 Bit, 1527, 526E, T12E, 5026, UM3750, BA5104,145026, HT6***, TC9148.

There are 2 Tabs. Key Items on each of the App tabs, that can be selected with the cursor and changed with the encoder knob are:

Common to all TABs

Title bar: The usual items may be changed and displayed.
Frequency: At the lower part of the App is the Frequency setting. This is stored in persistent memory
Step size: This is next to the frequency and allows the selection of the standard step sizes.
Gain: The gain setting are below the frequency and marked (0-47) LNA(IF) and AMP 0=0db or 1=14dB.
Start: This button starts the transmission and if pressed again can stop the transmission.

Config Tab

Type: This is the selection of a pre-Configured Encoder/ decoder chip Type.
Clk: Selects the frequency of the OOK switching rate. This is interlinked to the frame rate for example 1kHz clock is 36000 10^6 s frame rate. Range of clock is 1-500KHz.
Frame: This can be selected but as stated above sets the clock and frame rate. The settings go from 30 10^6s to 36000 10^6s.
Symbols: This is the pattern of the symbol message sent. The 0/1 can be change to alter the OOK pattern. Note the pattern is made up as shown in the letters line of A for Address, D for DATA, S for Sync .
Waveform: This shows the diagrammatic view of the waveform sent.
Progress Bar: When the transmission is started it shows the progress of the transmission while sending. Not many of the transmission are very short and looks like they are not sent.

Scan Tab

This is not implemented.

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Start here

How to collaborate
How to ask questions correctly

User manual

First steps
- About firmwares
- Redirections on this manual/project
Usage cautions
Intended use and Legality
Features
PortaPack Versions (which one to buy)
HackRF Versions
- Original GSG HackRF One
- Clifford's-version
Firmware update procedure
- Updating the Xilinx CPLD on hackrf board
Description of the hardware
- Enclosure/cases
  - 3d printed enclosure
- Internal speaker
- SMD buttons and caps
- Encoder knob
- SMA Connector replacement or removal
User interface
Powering the PortaPack
Troubleshooting
Applications
- Receivers
  - ADS-B
  - AFSK
  - AIS Boats
  - Analog TV
  - APRS
  - Audio
  - BLE RX
  - ERT Meter
  - Level
  - NRF
  - POCSAG
  - Radiosonde
  - Recon
  - Search
  - TPMS Cars
  - Weather/SubGhzD
  - Fox-Hunt
  - ProtoView
- Transmitters
  - ADS-B(S)
  - APRS
  - BHT Xy/EP
  - BLE TX
  - Burger Pager
  - GPS Sim
  - Jammer
  - LGE Tool
  - Morse
  - OOK
  - OOK Editor
  - POCSAG
  - RDS
  - Soundboard
  - Spectrum Painter
  - SSTV
  - TEDI/LCR
  - TouchTunes
  - BLESpam
- Capture
  - C16 Format
- Replay
- Remote
- Scanner
- Microphone Transceiver
- Looking Glass
- Utilities
- Settings
  - App Settings
  - Audio
  - Blacklist
  - Calibration
  - Touchscreen Threshold
  - Config Mode
  - Converter
  - Date/time
  - Encoder Dial
  - Freq. Correct
  - P.Mem Mgmt
  - QR code
  - Radio
  - User Interface
  - Brightness
  - Menu Color
- Debug
- HackRF Mode
- USB Serial Console

Developer Manual

Compilation of the firmware
Create a custom map
Code formatting
PR process
Description of the Structure
Software Dev Guides
- Code contribution rules
- Create a Simple App
- Building External Apps
- Widgets
- SD Card
- Access Radio Hardware
- Interpret Guru meditation crashes
- Create a Complex App
- Theme-system
- Debug via SWD & JTAG
- Debug with serial
- I2C drivers
Tools
Research
- Dissecting the Temperature Logger
- Differences between H1 and H2
UI Screenshots
Maintaining
- Creating a prod/stable release (Maintainers only)
- Maintaining rules
Development States Notes

Hardware Hacks

Repairs
- Replace AMP
Mods
- Add GPIO TO H2
- USB‐C charging modification for older HackRF boards

Note

The wiki is incomplete. Please add content and collaborate.

Important

This is a public wiki. Everything is visible to everyone. Don't use it for personal notes.

Avoid linking to external tutorials/articles; they may become outdated or contain false information.