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December 17, 2025 by Debashis Das - No Comments

Compact development board features a single ESP32-P4 + ESP32-C5 dual-band Wi-Fi 6 module, MIPI display and camera interfaces

WTDKP4C5 S1, ESP32 P4 and ESP32 C5 WI FI6 Development Board

Just a few months back, Wireless-Tag released the WT99P4C5-S1, which combines the ESP32-P4 with an ESP32-C5 dual-band WiFi 6 module, instead of the more commonly used ESP32-C6 wireless module found on most ESP32-P4 development boards we’ve covered. The company has now released the WTDKP4C5-S1, a more compact development board built around the WT01P4C5-S1 ESP32-P4 and ESP32-C5 core module. The board supports MIPI-CSI and MIPI-DSI through the ESP32-P4, while the SDIO-connected ESP32-C5 provides dual-band Wi-Fi 6 (2.4/5 GHz) connectivity along with BLE 5, Zigbee, Thread, and Matter. Other features include a USB 2.0 Type-C OTG port, two UART debug interfaces, two 40-pin GPIO breakouts from both chips, and various power options via USB-C, a 12V DC input, or headers. The board is suitable for LVGL-based HMIs, data acquisition, industrial control, and Edge AI applications such as IPCs and smart displays. Wireless Tag WTDKP4C5-S1 specifications: Core module – Wireless Tag WT01P4C5-S1 Main […]

December 17, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

Maxell PSB2032 35 mAh all-solid-state coin cell battery targets industrial IoT devices

Maxell PSB2032 35 mAh all-solid-state coin cell battery for IoT devices

Maxell PSB2032 is a rechargeable “all-solid-state” coin cell battery for industrial IoT devices, which more than quadruples the capacity of the earlier PSB401010H ceramic-packaged solid-state battery, increasing it from 8mAh to 35mAh. As its name implies, it measures 20 mm in diameter and 3.2 mm in height, and delivers key benefits of solid-state batteries such as a wide discharge temperature range, high reliability, and high safety. It’s also easier to install than ceramic-packaged batteries requiring reflow soldering, since it comes pre-equipped with two connection terminals suitable for mounting into small-sized devices. The company shared a comparison table between its two solid-state batteries. For reference, the capacity of a typical CR2032 battery is 220–240 mAh, so the PSB2032 has a much lower capacity. However, it can be recharged and works in demanding environments with a wide temperature range and high safety requirements. The last time we wrote about solid-state batteries was […]

December 16, 2025December 17, 2025 by Debashis Das - 2 Comments

HealthyPi 6 – A portable Wi-Fi 6 biosignal acquisition device with ECG, PPG, respiration, and temperature sensors (Crowdfunding)

HealthyPi 6 open source multi modal biosignal research platform

Designed by ProtoCentral Electronics in India, the HealthyPi 6 is an open-source, portable, research-grade biosignal acquisition device designed for academic research, education, and prototyping. It targets labs, classrooms, and field studies that need professional-quality physiological measurements without bulky desktop systems or proprietary lock-in. Building on the HealthyPi 5 (2023) and HealthyPi 4 (2019), the HealthyPi 6 is a standalone device with 3-channel/5-lead ECG, dual-wavelength PPG for heart rate and SpO₂, respiration via impedance pneumography, skin temperature sensing, and a 9-axis IMU for motion and artifact detection. Built around the STM32H757 real-time microcontroller and an ESP32-C6 handling Wi-Fi 6 and BLE connectivity, the device features a USB-C port, onboard flash and microSD storage, and 48+ hours of operation on a charge. Modular HealthyLink ports allow for EEG, EMG, GSR, additional analog inputs, triggers, and co-processors expansion. These features make it suitable for cardiovascular and sleep research, rehabilitation studies, wearable prototyping, biosignal […]

December 16, 2025December 17, 2025 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

VEGA AS2161 “DHRUV64” – A 1GHz dual-core 64-bit RISC-V microprocessor designed in India

The Government of India has been investing to spur up its semiconductor design and manufacturing industry at least since 2018/2019 with the SHAKTI and AJIT microprocessors. In 2022, they decided to focus on the RISC-V architecture with the VEGA processor family, starting with the THEJAS32 (VEGA ET1031) and THEJAS64 (VEGA AS1061) microprocessors, and the former was eventually found in the ARIES v3.0 Arduino UNO-inspired development board. Things continue to progress nicely, albeit slowly, and the government has now announced the launch of the DHRUV64 (VEGA AS2161) dual-core 64-bit RISC-V MPU clocked at 1 GHz and supporting Linux, which it describes as “a fully indigenous microprocessor developed by the Centre for Development of Advanced Computing (C-DAC) under the Microprocessor Development Programme (MDP)”. VEGA AS2161 (DHRUV64) specifications highlights: Architecture – RISC-V 64G (RV64IMAFD) Instruction Set 13-16 stage out-of-order pipeline implementation. Advanced branch predictor – BTB, BHT, RAS. Harvard architecture, separate Instruction and […]

December 15, 2025December 15, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Luxonis OAK4 standalone AI vision camera features Qualcomm QCS8550 SoC with up to 52 TOPS performance

Luxonis OAK4 Qualcomm QCS8550 AI camera family

Luxonis OAK 4 is a standalone AI vision system/camera powered by a Qualcomm DragonWing QCS8550 platform delivering up to 52 TOPS of AI performance for on-device real-time perception without relying on a host computer. Four variants are offered: OAK 4 S, OAK 4 D, OAK 4 D Pro, and OAK 4 CS. All four feature 8GB of RAM, 128GB of storage, and a 48 MP RGB camera sensor with rolling shutter, although the OAK 4 CS model can feature a 5MP global shutter camera thanks to support for wappable lenses. Depth sensing is implemented through an OV9282 sensor in the OAK 4 D and OAK 4 D Pro (dual camera) models, and the latter also adds a laser dot projector to improve depth perception. Luxonis OAK 4 specifications: SoC – Qualcomm DragonWing QCS8550 CPU – 1x GoldPlus core @ 3.2 GHz + 4x Gold cores @ 2.8 GHz + 3x […]

December 12, 2025 by Debashis Das - 3 Comments

Renesas RA6W1/RA6W2 Cortex-M33 wireless MCUs offer dual-band Wi-Fi 6, BLE, Matter, 15-year availability

Renesas RA6W1 and RA6W2 dual band Wi Fi 6, BLE, Matter Cortex M33 Wireless MCU

Renesas has added the RA6W1 (Wi-Fi 6) and the RA6W2 (Wi-Fi 6 + BLE) MCUs to its high-performance RA6 family, adding dual-band Wi-Fi 6 and Bluetooth LE, as well as Matter connectivity to the series. Both models feature a 160 MHz Arm Cortex-M33 core, dual-band Wi-Fi 6 with WPA3 security, on-chip PA/LNA/RF switch, and a full TCP/IP stack for fast connectivity. They integrate up to 704 KB SRAM, 256 KB ROM, and support eMMC/SD, O-QSPI, and QSPI for external flash and/or PSRAM. The series also includes generic peripherals like SPI, I²C, I²S/PDM, SDIO, 12-bit ADCs, PWM timers, and up to 28 GPIOs. Offered in compact QFN/WLCSP packages, the RA6W1/2 MCUs target smart home, wearables, industrial, and consumer IoT markets where long battery life and wireless connectivity are essential. Renesas RA6W1 specifications: MCU core – Arm Cortex-M33 @ up to 160 MHz, Armv8-M architecture with MPU and SysTick Memory & Storage […]

December 12, 2025December 13, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

nRF9151 SMA DK development kit offers cellular IoT, DECT NR+, and 5G NTN satellite connectivity

Nordic Semiconductor’s nRF9151 SMA DK development kit is designed for building IoT applications using LTE-M/NB-IoT cellular IoT, DECT NR+, or 5G NTN (Non-Terrestrial Network) satellite connectivity. The development kit offers three ways to connect a SIM card, namely a NanoSIM card slot, an MFF2 SIM footprint for eSIM or software iSIM, and a 10-pin SIM connector. It also includes two SMA connectors for GPS and LTE antennas or lab equipment, multiple current measurement connectors, and Arduino UNO headers for expansion, notably the nRF7002 EK for adding Wi-Fi 6 locationing capabilities. nRF9151-SMA-DK specifications: Wireless System-in-Package – Nordic Semi nRF9151 CPU – Arm Cortex-M33 @ 64 MHz Memory – 256KB RAM Storage – 1MB flash Connectivity Multimode LTE-M/NB-IoT/NB-NTN modem with DECT NR+ support and GNSS. 700-2200 MHz LTE band support. Power Class 5 20 dBm Power Class 3 23 dBm 1.9 GHz and 915 Mhz DECT NR+ band support Security – Arm […]

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

iWave Systems iG-RainboW-G69M TI AM62L OSM Size-S system-on-module powers Raspberry Pi-sized SBC

Yesterday, I wrote about the Beacon AM62L SoM, one of the first system-on-module based on Texas Instruments AM62L dual-core Cortex-A53 SoC for low-power IoT and HMI applications. It turns out there’s another AM62L module compliant with the OSM Size-S standard, along with a Raspberry Pi-sized carrier board. iWave Systems iG-RainboW-G69M is a 30x30mm CPU module with 1GB or 2GB LPDDR4, 8GB eMMC flash by default, and 332 LGA contacts exposing interfaces such as RGB LCD and MIPI CSI display interfaces, dual gigabit Ethernet, I2S audio, USB 2.0 interfaces, and a range of low-speed I/Os. iWave Systems iG-RainboW-G69M specifications: SoC – Texas Instruments AM62Lx CPU – Dual-core Arm Cortex-A53 processor up to 1.25GHz Cache – 32KB L1 D-cache, 32KB L1 I-cache per core; shared 256KB L2 cache System Memory – 1GB LPDDR4, expandable up to 2GB Storage 8GB eMMC flash (other capacities available upon request) 32Kbit EPPROM 332 LGA contacts Storage […]