Open source sub-GHz, NFC and IR wireless multitool

Open source sub-GHz, NFC and IR wireless multitool

Technology News |
By Nick Flaherty

MostaTek in California is developing a multitool that can access a wide range of NFC, sub-GHz RF and infrared systems.

The M1 RF multitool being developed by Mostatek is based on the STM32H5 series ARM Cortex M33 microcontroller from STMicroelectronics with a 1.54in LED screen and 2100mAh battery for up to 14 days operation.  The company plans to open up a GitHub repository for the system in August. The company also plans pre-made software plug-ins.

The M1 can detect, record, and emulate RFID cards and fobs, including smart locks and even animal microchip tags.

It has a specialized 125 kHz antenna designed to work with common access system protocols like EM-4100 and HID Prox cards and 13.56 MHz compatibility with a broad spectrum of NFC tags.. This gives precise and reliable readings every time. At its core is the Si4463 wireless transceiver, with broad frequency coverage from 142 MHz to 1050 MHz with integrated signal analysis tools for delving into radio systems. This can capture radio signals for analysis or playing back.

The STM32H also includes TrustZone hardware to secure sensitive data, including access codes and personal information, safe and sound. A microSD card slot supports 256Gbytes of storage. The M1 also uses an Espresif ESP-32 C6 dual core RISC-V system on chip for WiFi and Bluetooth.

It includes an infrared sensor for control a wide range of devices from TVs to stereos and air conditioners and comes with a library of common commands for functions  such as adjusting the volume or turning appliances on and off. It also has an IR Learning function that allows the M1 to learn and replicate signals from an existing IR remote.

The 12 GPIO pins are each capable of handling 5V for various hardware interactions possible from customizing button functions to displaying important information. IT can be used for firmware flashing, debugging, and also allows M1 to function as a USB to UART/SPI/I2C adapter when connected to a computer to interface with other microcontrollers or devices.

Both Arduino and PlatformIO compatibility will be available for developers at release time, but there may be additional updates and features introduced post-release to add functions.

The M1 is currently on Indiegogo crowd-sourcing with plans to ship in September 2024.


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