bluetooth News - Page 3 of 92 - CNX Software

May 15, 2026May 15, 2026 by Debashis Das - 4 Comments

PENOX WristBuds – A Bluetooth 6.0 smartwatch with integrated TWS earbuds (Crowdfunding)

WristBuds 2 in 1 Smartwatch with ENC Earbuds

PENOX WristBuds is a 2-in-1 rugged Bluetooth 6.0 smartwatch with integrated TWS earbuds, eliminating the need for a separate charging case. Designed for outdoor enthusiasts and the “zero-clutter mobility” market. The watch is built around a Bluetrum AB5681G RISC-V smartwatch MCU managing both the smartwatch interface and audio synchronization. The device sports a large 2.1-inch IPS display with a 320×390 resolution and is housed in a CNC-machined zinc alloy body. But what’s interesting about this is its mechanical, spring-loaded “Pop & Snap” design that houses the TWS earbuds inside the watch, and eliminates the need for a separate charging case. PENOX WristBuds specifications: MCU – Bluetooth AB5681G CPU – 32-bit RISC-V CPU @ up to 140 MHz Memory – TBC (not mentioned at all in the MCU datasheet) Storage – 128Mbit integrated NOR Flash Display & Graphics – SPI/QSPI display engine with HW acceleration (DMA, rotation, scaling, blending) Audio – […]

May 14, 2026May 14, 2026 by Debashis Das - 3 Comments

PortaRF single board SDR mixes HackRF One and PortaPack H4M hardware, adds AI voice control

Designed by OpenSourceSDRLab, the PortaRF is an open-source software-defined radio (SDR) that integrates HackRF One and the PortaPack H4M into a single device. It’s a standalone device that supports transmitting and receiving radio signals from 1 MHz to 6 GHz. Traditionally, a portable HackRF setup meant stacking a PortaPack on top of the main board. PortaRF replaces this with a single PCB, making it more compact, easier to use, and with improved signal quality. It also adds a larger display, more flash, and a bigger battery. PortaRF specifications: MCU – NXP LPC432 dual core ARM Cortex M4/M0 (LPC4320FBD144) microcontroller CPLD Xilinx XC2C64A CoolRunner-II AGM AG256SL100 RF ICs MAX2837 – 2.3GHz to 2.7GHz Wireless Broadband RF Transceiver RFFC5072 – Wideband Synthesizer/VCO with Integrated 30MHz to 6 GHz Mixer Frequency range – 1 MHz to 6 GHz (Transmit and Receive) Storage 2MB SPI Flash (W25Q16DV) provides more space for the Mayhem firmware MicroSD card slot […]

May 14, 2026May 14, 2026 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

Clawdmeter – A DIY ESP32-S3 desk dashboard for Claude Code token usage monitoring

Clawdmeter is a DIY ESP32-S3-powered desk dashboard that displays Claude Code token usage on a 2.16-inch AMOLED screen so you know when you’re about to reach the limits in real time. It’s mostly a firmware project since it relies on off-the-shelf hardware (Waveshare ESP32-S3-Touch-AMOLED-2.16). It leverages the LVGL library for its graphics user interface, the NimBLE stack for Bluetooth LE (BLE) communication, and also functions as a HID keyboard for shortcuts using the buttons from the unit. We previously covered Waveshare ESP32-S3-Touch-AMOLED-1.8 with a 1.8-inch display, but never the 2.16-inch variant, so let’s have a quick look at the hardware first. ESP32-S3-Touch-AMOLED-2.16 specifications: Wireless MCU – Espressif Systems ESP32-S3R8 CPU – Dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration. Memory – 512KB RAM, 8MB PSRAM ROM – 384KB Connectivity – 2.4 GHz WiFi 4 and Bluetooth 5.0 LE Storage 16MB NOR flash MicroSD card slot […]

May 6, 2026May 6, 2026 by Jean-Luc Aufranc (CNXSoft) - No Comments

Toradex Zinnia Linux IoT Gateway offers dual GbE, WiFi 5, 4G LTE, I/Os, and simplified software deployment

Toradex Zinnia is an industrial IoT gateway based on the company’s Verdin system-on-module, powered by a choice of NXP or Texas Instruments SoC, with dual Gigabit Ethernet, WiFi 5, Bluetooth 5, optional 4G LTE or 5G connectivity, a few USB ports, an I/O connectors, and a wide 9-36V power supply range. The first model is based on an NXP i.M 8M Plus SoM with 4GB LPDDR5 and 32GB eMMC flash preloaded with the company’s Torizon OS Linux distribution. Other SoM available are based on TI AM62/AM62P, NXP i.MX 8M Mini, or NXP iMX 95. The gateway targets edge AI and industrial automation, smart cities, and energy infrastructure. Toradex Zinnia specifications: SoC – NXP i.MX 8M Plus CPU – Quad-core Cortex-A53 processor @ 1.6/1.8 GHz, Arm Cortex-M7 real-time core @ 800 MHz GPU – Vivante GC7000UL OpenGL ES 1.1, 2.0, 3.0, OpenCL 1.2, Vulkan support AI accelerator – 2.3 TOPS NPU […]

May 4, 2026May 5, 2026 by Jean-Luc Aufranc (CNXSoft) - No Comments

ESP32-P4 + ESP32-C5 board features Raspberry Pi-compatible MIPI connectors for official displays and camera modules

We’ve come across an ESP32-P4 + ESP32-C5 board that looks similar to the Wireless Tag WTDKP4C5-S1 board, but is even more compact and features four MIPI connectors, including two whose pinout is compatible with Raspberry Pi camera modules and displays. Maker Go calls it the “ESP32P4C5 core board” and features an “ESP32-P4-Module” with ESP32-P4 MCU with 32MB PSRAM, an ESP32-C5 dual-band WiFi 6 SoC, nd a 16MB NOR flash. Besides the MIPI connectors, the board features three USB ports, one for debugging, and two Type-C/A ports sharing a USB 2.0 data connection, a built-in MEMS microphone, a speaker connector, and two 34-pin headers for expansion. ESP32P4C5 Core Board specifications: Main SoC – Espressif Systems ESP32-P4 CPU Dual-core 32-bit RISC-V HP (High-performance) CPU @ up to 400 MHz with AI instructions extension and single-precision FPU Single-RISC-V LP (Low-power) MCU core @ up to 40 MHz with 8KB of zero-wait TCM RAM […]

April 29, 2026April 29, 2026 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

SONOFF NSPanel Pro Gen2 – A 86-Type Smart Home control panel with two relays, dual-band WiFi, Zigbee 3.0, Matter support

SONOFF NSPanel Pro Gen2 is an 86-type Smart Home control panel featuring a 3.95-inch touch display, two relays supporting up to 10A, and dual-band WiFi 4, Bluetooth LE, and Zigbee 3.0 connectivity. The device also integrates a 1.5W speaker and a microphone for voice interaction, light and proximity sensors, and runs Android on a Rockchip RK3326-S SoC paired with 2GB RAM and 32GB eMMC flash. SONOFF NSPanel Pro Gen2 specifications: SoC – Rockchip RK3326-S CPU – Quad-core Cortex-A35 processor @ 1.5 GHz GPU – Arm Mali-G31 GPU System Memory – 2GB DDR3 Storage – 32GB eMMC 5.1 flash Display – 3.95-inch capacitive touchscreen color TFT display with 480×480 resolution Audio – 1.5W speaker, digital microphone for two-way communication (intercom) Connectivity Zigbee 3.0 support via EFR32MG24 Dual-band 2.4 GHz and 5 GHz WiFi + Bluetooth Matter support Relay – Dual-gang relay up to 5A per gang, or 10A in total (resistive […]

April 28, 2026 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

ESP32-C5-WIFI6-KIT dual-band WiFi IoT board offers up to 32MB flash, 8MB PSRAM, onboard or external WiFi antenna

Waveshare ESP32-C5-WIFI6-KIT development kit looks similar to the official Espressif Systems ESP32-C5-DevkitC-1 board, but offers a wider range of options, including different PSRAM and flash capacities, and onboard or external antenna selection. While the official devkit ships with 8MB PSRAM, 4MB SPI flash, and a PCB antenna, the Waveshare board is offered with up to 8MB PSRAM, 16MB or 32MB flash, and either a PCB and external antennas. It also adds battery support and can be ordered with or without pre-soldered headers. Waveshare ESP32-C5-WIFI6-KIT specifications: Wireless module – ESP32-C5-WROOM-1 or ESP32-C5-WROOM-1U SoC – ESP32-C5 CPU Single-core 32-bit RISC-V processor @ up to 240 MHz Low-power RISC-V core @ 40 MHz acting as the main processor for power-sensitive applications Memory – 384 KB SRAM on-chip Storage – 320 KB ROM Connectivity Dual-band (2.4GHz/5 GHz) 802.11ax WiFi 6, with 802.11b/g/n WiFi 4 standard fallback 20MHz bandwidth for the 802.11ax mode 20/40MHz bandwidth […]

April 28, 2026April 27, 2026 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

ESP32-C5 Mini USB-C board supports 2.4 GHz and 5 GHz WiFi 6, up to 14x GPIO pins for IoT projects

ESP32-C5 Mini is a tiny development board with dual-band (2.4/5 GHz) WiFi 6, Bluetooth 5.x LE, and an 802.15.4 radio for Zigbee, Thread, and Matter, as well as two 9-pin headers offering up to fourteen GPIOs for IoT and Smart Home projects. It reminds me of the XIAO ESP32-C5, but it’s slightly longer and features an ESP32-C5HF4 SoC instead of an ESP32-C5HR8 + 8MB SPI flash, meaning it lacks PSRAM, and only comes with 4MB flash on-chip instead of external flash. It also adds four GPIO pins and comes with a built-in antenna and an IPEX antenna connector. NiceMCU ESP32-C5 Mini specifications: Wireless MCU – Espressif Systems ESP32-C5HF4 CPU Single-core 32-bit RISC-V processor @ up to 240 MHz Low-power RISC-V core @ 48 MHz acting as the main processor for power-sensitive applications Memory – 384 KB SRAM on-chip Storage – 320 KB ROM, 4MB SPI flash Wireless Dual-band (2.4/5 GHz) […]