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April 16, 2025April 15, 2025 by Debashis Das - 4 Comments

Luckfox Nova Audio IoT board features 8-channel mic input, voice activity detection, and PoE

Luckfox has recently released the Luckfox Nova Audio IoT board built around the Rockchip RK3308B quad-core 64-bit Arm Cortex-A35 SoC clocked at up to 1.3GHz, and featuring 8-channel microphone inputs and voice activity detection (VAD). The board comes with 512MB DDR3 RAM, 8GB eMMC flash storage, and a microSD card slot. It also features dual 26-pin GPIO headers that support UART, SPI, I2C, and more. The Luckfox Nova is also equipped with a PoE-capable Ethernet RJ45 port, and optionally supports Wi-Fi 6 and Bluetooth 5.2/BLE. Other onboard interfaces include a USB Type-C port for power and programming, a speaker, microphone headers, and more. All these features and various I/O options make this device suitable for applications where multi-channel audio capture, voice recognition, and real-time audio signal processing are required. Luckfox Nova specifications: SoC – Rockchip RK3308B Quad-core 64-bit Arm Cortex-A35 @ up to 1.3GHz Integrated high-performance audio codec Built-in Voice Activity […]

April 15, 2025April 15, 2025 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Xero MCU is a compact USB-C board based on STM32F411 microcontroller (Crowdfunding)

Xero MCU is a small STMicro STM32F411 Arm Cortex-M4F microcontroller board with a USB-C port, twenty through and castellated holes for GPIOs, a Debug connector, Reset and Boot buttons, and a few LEDs. The 100 MHz MCU embeds 512KB flash and 128KB SRAM, and the board is said to be designed for hobbyists, students, and professionals. For reference, the Xero MCU board features the same STM32F411CEU6 microcontroller found in the Black Bill board. However, it’s quite shorter at about half the size, and features castellated edges, making it suitable for soldering on a baseboard. Xero MCU specifications: Microcontroller – STMicro STM32F411CEU6 Arm Cortex-M4F MCU @ 100MHz with 512KB Flash, 128KB SRAM USB – 1x USB Type-C port for power and programming Expansion – 2x 20-pin through and castelled holes with up to 17x GPIO, I2C, 2x SPI, 2x UART, 4x ADC, 5V, 3.3V, and GND Debugging – 4-pin debug connector […]

April 14, 2025April 14, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

W6300-EVB-Pico2 board combines RP2350 MCU with WIZnet W6300 QSPI Ethernet controller for 80+ Mbps data rate

W6300-EVB-PICO2 board with Raspberry Pi RP23500 and W6300 QSPI Ethernet controller

WIZnet W6300-EVB-Pico2 is a development board that combines a Raspberry Pi RP2350 MCU with the company’s new W6300 QSPI Ethernet controller capable of 80+ Mbps data rates. WIZNet has made several 10/100Mbps Ethernet controllers over the years that connect to microcontrollers via SPI, but the speed is often limited to 15 to 70 Mbps due to a low SPI clock frequency and small buffers. The WIZNet W6300 Ethernet controller can deliver higher speed thanks to a 150MHz system clock, a QSPI interface with four data lines, 64KB SRAM, and 4KB TX/RX buffer for each of the 8 sockets. W6300 QSPI Ethernet controller W6300 features and specifications: Host Interface – High-speed QSPI (MODE 0/3), system bus with 2 address signals & 8-bit data Internal 32KB SRAM for Tx/ Rx buffers (64KB in total) 8x independent sockets with 64KB Memory 10BaseT / 10BaseTe / 100BaseTX Ethernet PHY Integrated Auto negotiation (Full and […]

April 11, 2025April 11, 2025 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

Mono Gateway – A 10GbE nano-ITX router board powered by NXP Layerscape LS1046A

Mono Gateway 10GbE Nano ITX router board

The Mono Gateway is a nano-ITX router board powered by an NXP LayerScape LS1046A quad-core processor and equipped with two 10GbE SFP+ cages, three gigabit Ethernet RJ45 ports, and M.2 sockets for wireless WiFi 6 and/or tri-band WiFi 5, Bluetooth, and Thread modules. Tomaž Zaman’s YouTube channel description reads “I hate routers”, and that’s exactly why the “Gateway” came to life. He wanted a router that meets his expectations and runs open-source software. The NXP Layerscape LS1046A was selected thanks to its ability to support 10 Gbps Ethernet with up to 26 Gbps line-rate throughput for VLANs, PPPoE, and NAT. Let’s have a look. Mono Gateway specifications: SoC – NXP Layerscape LS1046A quad-core Cortex-A72 processor @ 1.6 GHz System Memory – 8 GB ECC RAM @ 2100 MT/s Storage 32 GB eMMC flash for the OS 64 MB NOR flash for the bootloader Networking 2x SFP+ 10 Gbps Ethernet cages […]

April 9, 2025April 10, 2025 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

Antenna hack more than doubles the range of cheap ESP32-C3 USB-C boards

There are plenty of small ESP32-C3 IoT boards with a USB-C connector on the market, and while they all look very similar, antenna designs differ, and less thought-out ones may severely impact the WiFi and Bluetooth range. Peter Neufeld decided to hack one of those cheap ESP32-C3 boards by adding a custom antenna, and this resulted in the board having more than twice the range and almost three times in some cases. Those tiny boards are cramped, so there’s very little space around the ceramic antenna typically used, leading to poor RF performance. To work around that issue, Peter added a 31mm long antenna made of silver-plated wire, making a loop of about 8mm in diameter outside of the board and soldered on the ceramic antenna’s solder joints, and the rest of the wire (about 15mm) points upwards. As you can see from the photo above, he didn’t remove the […]

April 9, 2025April 11, 2025 by Debashis Das - 4 Comments

Microchip SAMA7D65 Cortex-A7 MPU comes in SoC and SiP packages with up to 2Gbit integrated DDR3L memory

Microchip has recently released the SAMA7D65 MPU, a high-performance Arm Cortex-A7 embedded processor designed for HMI and connectivity applications across industrial, home, medical, and appliance markets. The MPU is available in both System-in-Package (SiP) and System-on-Chip (SoC) variants and features various display interfaces, including MIPI DSI, LVDS, and 8-bit Serial RGB interfaces, along with a 2D GPU for graphical acceleration. Memory and storage options include support for 16-bit DDR2/DDR3/DDR3L and LPDDR2/3 memory, optional 1 Gbit or 2 Gbit DDR3 RAM, NAND Flash, eMMC Flash, and SD card. It features dual Gigabit Ethernet with TSN support, an I3C controller, five CAN-FD interfaces, and three high-speed USB ports. Additionally, it comes with various security features, including physically unclonable function (PUF), secure boot, key storage, and cryptographic accelerators for AES, SHA, RSA, and ECC. Microchip SAMA7D65 SoC/SiP specifications: CPU – Arm Cortex-A7 core up to 1 GHz Arm TrustZone, NEON, FPU 32KB L1 I-cache […]

April 4, 2025April 4, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

ESP32-P4 credit card-sized board features Ethernet, WiFi 6, four USB ports, 40-pin GPIO header, MIPI DSI and CSI connectors

Waveshare ESP32-P4-Module-DEV-KIT credit card-sized board may look like a Linux-powered Raspberry Pi SBC, but instead, it’s based on an “ESP32-P4-Module” comprised of a 400 MHz Espressif ESP32-P4 RISC-V general-purpose microcontroller, an ESP32-C6 “co-processor” for WiFi 6 and Bluetooth 5, and a 16MB SPI NOR flash. Designed for HMI applications, the board offers MIPI DSI and CSI connectors, as well as a 100Mbps Ethernet RJ45 jack, four USB 2.0 ports, a 40-pin GPIO header, and more. It basically integrates the same ports as a Raspberry Pi SBC minus HDMI, but relies on a microcontroller instead of a Linux-capable application processor. Waveshare ESP32-P4-Module-DEV-KIT specifications: ESP32-P4-Module Microcontroller – ESP32-P4NRW32 MCU Dual-core RISC-V microcontroller @ 400 MHz with AI instructions extension and single-precision FPU Single-RISC-V LP (Low-power) MCU core @ up to 40 MHz GPU – 2D Pixel Processing Accelerator (PPA) VPU – H.264 and JPEG codecs support Memory – 768 KB HP L2MEM, […]

April 2, 2025 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

P42 Pico2 M.2 – A Raspberry Pi RP2350 board in M.2 form factor

The P42 Pico2 M.2 may look like an M.2 module, but it’s actually a Raspberry Pi RP2350 development board in M.2 2230 form factor whose edge connector exposes USB, UART, I2C, and control I/Os. The board ships with a 2MB SPI flash and complies with voltage levels defined by the M.2 specification, with some of the interfaces running on 1.8 V. The SWD interface, +3.3 V, GND, and 16 IOs are accessible on castellated pins, and there’s also a QWIIC connector for I2C modules, but it’s not populated by default. The board also comes with a microSD card slot on the bottom and the usual Reset and BOOT buttons. P42 Pico M.2 specifications: SoC – Raspberry Pi RP2350A CPU Dual-core Arm Cortex-M33 @ 150 MHz with Arm Trustzone, Secure boot OR Dual-core RISC-V Hazard3 @ 150 MHz Up to two cores can be used in any combination Memory – 520 […]