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September 22, 2025September 21, 2025 by Debashis Das - 2 Comments

ESP32 Marauder Double Barrel 5G adds 5GHz deauthentication with RTL8720DN module

The ESP32 Marauder – Double Barrel 5G is a dual-chip hacking and penetration testing tool that supports both 2.4 GHz and 5 GHz Wi-Fi scanning, deauthentication, and can be used for penetration testing, wireless research, and learning security concepts. The device is built around an ESP32, and can be used with Flipper Zero or as a standalone device. Additionally, it features a dedicated GPS receiver and a CC1101 Sub-GHz transceiver (433 MHz) for wireless experiments. Other features include a 2.8-inch touchscreen, 800 mAh rechargeable battery, micro-SD slot for logs/firmware/Flipper FAP files. There are also dual USB-C interfaces (one for charging/ESP32 recovery and one for BW16 firmware update), and four external antenna ports (Wi-Fi ×2, GPS, Sub-GHz) housed in a 3D-printed enclosure. ESP32 Marauder Double Barrel 5G specifications Main module – ESP32 Wi-Fi & Bluetooth SoC Storage – MicroSD card slot for firmware, logging, and data storage. Display – 2.8-inch touchscreen with included […]

September 15, 2025September 15, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

RAK3112 WisDuo LoRa + WiFi + BLE module targets Edge AI and Meshtastic UI

RAKwireless “RAK3112 WisDuo Module for Edge AI with LoRa” combines an ESP32-S3 WiFi and BLE SoC with a Semtech SX1262 LoRa transceiver for Edge AI applications and Meshtastic user interfaces. The 3-in-1 LoRa + WiFi + BLE module is an update to the ESP32-based RAK11200 WisDuo LoRa module, which has limitations in terms of computing power and memory. Those became apparent in more demanding applications such as Edge AI or complex mesh networks. With 16MB of flash and 8MB of PSRAM and a more powerful ESP32-S3 microcontroller, the RAK3112 WisDuo module overcomes those limitations for camera and audio processing, as well as mesh networks like Meshtastic. It also offers a more powerful alternative to the pin-compatible RAK11160 STM32 + ESP32-C2 module that’s better suited for battery-powered sensors. RAKwireless RAK3112 specifications: Main MCU – Espressif Systems ESP32-S3 CPU – Xtensa 32-bit LX7 dual-core CPU @ 240 MHz with vector instructions, AI […]

September 12, 2025September 11, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

Silicon Labs FG23L low-cost Arm Cortex-M33 SoC targets proprietary Sub-GHz IoT applications

Silicon Labs EFR32FG23L, or FG23L for short, is an ultra-low power, Sub-GHz wireless Arm Cortex-M33 SoC, which the company claims offers the best price/performance ratio for Sub-GHz IoT applications such as home and industrial automation, key fobs, and smart city sensor nodes. It’s a cost-down version of the PSA Certified Level 3 FG23 SoC equipped with less memory (32KB vs 64KB) and storage (128KB vs 512KB), less advanced security features, no segment LCD interface, and fewer GPIOs. The new FG23L is only designed for proprietary protocols, while the FG23 supports Amazon Sidewalk, Wi-SUN, Wireless M-Bus (WM-Bus), and Wirepas. Silicon Labs FG23L specifications: MCU core – Arm Cortex-M33 @ 78 MHz with DSP instruction and floating-point unit Memory – 32 kB RAM data memory Storage – 128 kB flash program memory Sub-GHz radio Tx power up to +20 dBm Rx sensitivity -98.6 dBm @ 400 kbps 920 MHz 4-GFSK -125.8 dBm […]

September 11, 2025September 11, 2025 by Debashis Das - No Comments

Quectel KCMCA6S industrial wM-bus modules target smart metering

cnx KCMCA6S series sub GHz Wireless M Bus (WM Bus) modules

Quectel’s KCMCA6S is a series of industrial wireless M-Bus (wM-Bus) modules built around Silicon Labs’ EFR32FG23 chipset. The modules operate in the 868 MHz, 169 MHz, and 433 MHz bands and support the EN13757-4 wM-Bus standard for smart metering and AMI (Advanced Metering Infrastructure) applications. The device features an Arm Cortex-M33 processor, 32 KB of SRAM, 256 KB of flash, and a Sub-GHz transceiver. It supports multiple wM-Bus modes (T, C, S, R, N, F), with dynamic multi-mode switching, flexible frequency configuration, and low-power operation alongside multi-layer security mechanisms. Interfaces include USART, SWD, and GPIOs, with optional EUSART, I²C, and ADC through pin multiplexing. Available in two variants (with or without SAW filter), the module comes in a compact 25.4 × 14.0 × 2.9 mm LCC package for water, electricity, gas, and heat metering systems. Quectel KCMCA6S specifications: MCU- Silicon Labs EFR32FG23 Core – Arm Cortex-M33 core, up to 78 […]

September 4, 2025 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

ESP32-H2-Zero mini Zigbee, Thread, and BLE USB-C board is based on ESP32-H2 RISC-V SoC

Waveshare ESP32-H2-Zero is a tiny USB-C development board based on Espressif Systems’ ESP32-H2 RISC-V SoC with Zigbee, Thread, and Bluetooth LE (BLE) connectivity. It’s specifically based on the ESP32-H2FH4S chip with 4MB Flash memory, and features two 9-pin headers and castellated for I/Os, plus four additional pads. It also features a ceramic antenna instead of an external antenna, as well as BOOT and Reset buttons. ESP32-H2 Mini specifications: SoC – Espressif Systems ESP32-H2FH4S CPU – 32-bit RISC-V SoC clocked at up to 96 MHz Memory – 320 KB SRAM, 4 KB LP memory Storage – 128 KB ROM, 4MB flash Wireless 802.15.4 radio with Zigbee 3.0, Thread 1.3, and Matter support Bluetooth 5.2 LE/Mesh USB – USB Type-C port for power, programming, and debugging Expansion 2x 9-pin header and castellated holes with up to 15x GPIO, 5x ADC, UART, Fast SPI, JTAG, and power signals (5V, 3.3V, GND) 4x pads […]

August 14, 2025August 14, 2025 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Home Assistant Connect ZWA-2 Z-Wave USB adapter launched for $69

Home Assistant Connect ZWA-2 is a new Z-Wave USB adapter with Long Range support, which follows the launch of the Home Assistant Connect ZBT-1 (SkyConnect) Zigbee 3.0, Thread, and Matter USB dongle in 2022. Home Assistant explains that Z-Wave operates in the sub-GHz (865-926 MHz) frequency band, where waves can more easily go through thick walls and reach across large households, and do not need to compete in the crowded 2.4 GHz airspace used by wireless protocols such as Wi-Fi, Bluetooth, Zigbee, and Thread. Home Assistant Connect ZWA-2 specifications: SoCs Silicon Labs ZG23 Cortex-M33 Z-Wave microcontroller @ 78 MHz with ESP32-S3 wireless MCU used as USB-to-serial bridge (WiFi and Bluetooth present, but not used by the firmware) Wireless Z-Wave, Z-Wave Long Range Z-Wave series 800 Range – Tested up to 1.5km (line of sight) by Nabu Casa Antenna Frequency range: 860-930 MHz The frequency used by end devices depends on […]

August 12, 2025August 24, 2025 by Debashis Das - 3 Comments

LILYGO T-LoRa Pager is an ESP32-S3 handheld with support for text messaging, AI motion detection, and NFC

LILYGO T Lora Pager (LoRa + ESP32 S3 Handheld AIOT Programmable Development Device)

LILYGO T-LoRa Pager is an ESP32-S3-based IoT handheld device that comes in an old pager form factor but relies on LoRa for text messaging, GNSS for positioning, NFC for contactless communication, and features AI-assisted motion detection with a BHI260AP IMU sensor. The device also includes a 2.33-inch IPS display (480×222), a QWERTY keyboard, a rotary encoder, an audio codec, a microSD slot, a battery management system, and a wireless charging pad. These features make this device suitable for portable, remote sensing, asset tracking, field communication, and edge AI projects, where GNSS, LoRa, and/or NFC functionalities are required. LILYGO’s T-LoRa Pager specifications: Wireless SoC – Espressif Systems ESP32-S3 CPU – Dual-core 32-bit LX7 processor running at 240 MHz Memory – 512 KB SRAM, 8 MB PSRAM. Storage – 16 MB Flash Wireless – WiFi 4 and Bluetooth 5.x Storage – microSD card slot for external storage Display – 2.33-inch IPS display (ST7796), […]

August 6, 2025August 6, 2025 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

n-Fuse ZBC-M2-1630 – An affordable Zigbee, Thread, and Bluetooth M.2 1630 module

n-Fuse ZBC-M2-1630 is an M.2 1630 module based on Silicon Labs’ MGM260P module with an EFR32MG26 Bluetooth, Thread, and Zigbee multi-protocol Cortex-M33 SoC. While adding Zigbee, Thread, and/or Bluetooth through a USB dongle is common, it’s harder to find M.2 or mPCIe cards. Mixtile used to sell a 2-in-1 Zigbee & Z-Wave mPCIe module based on Silicon Labs MG23 and MG24 chips, but as noted in our Mixtile Edge 2 kit review, it’s now sold to businesses in 50 or 100-piece bundles, or integrated into the company’s gateway. The ZBC-M2-1630 (aka ZBC26-M2-1630) Key A/E M.2 module offers an alternative available to both individuals and companies. n-Fuse ZBC-M2-1630 specifications: Wireless Module – Silicon Labs MGM260P SoC – EFR32MG26 SoC MCU core – Arm Cortex-M33 @ 78 MHz with DSP instructions and floating-point unit AI/ML accelerator – Matrix Vector Processor that is 8x faster and 6x lower power than Cortex-M33 processing, and […]