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December 19, 2025 by Debashis Das - No Comments

LILYGO T-Echo Plus off-grid LoRa communicator features a climbing hook for hiking, cycling, and remote communication

The LILYGO T-Echo Plus is another off-grid LoRa communicator, similar to Blackout Comms, ThinkNode M2, and Wio Tracker L1 Pro, but it features a metal attachment loop (designed like a climbing hook) for use in hiking, cycling, and off-grid environments. Built around a Nordic Semi nRF52840 MCU, it supports Bluetooth 5, Thread, Zigbee, and 802.15.4. It also adds an SX1262 LoRa transceiver, a 1.54-inch 200×200 SPI E-Paper display, and an L76K GNSS module. Other features include a 6-axis IMU (BHI260AP), a vibration motor, a buzzer, and a larger 2400mAh battery, along with a 1/4-inch mount and a “climbing finger loop” for gear attachment. Additional features include an optional BME280 sensor, Grove expansion, all in a rugged and compact enclosure with a long external antenna for extended LoRa range. LILYGO T-Echo Plus Specifications: SoC – Nordic Semiconductor nRF52840 CPU – 32-bit Arm Cortex-M4F microcontroller @ 64 MHz Memory/Storage – 2 MB Flash, […]

December 17, 2025February 1, 2026 by Jean-Luc Aufranc (CNXSoft) - No Comments

Fusion HAT+ Raspberry Pi expansion board targets motor and servo control with AI and LLMs

SunFounder Fusion HAT+ for Raspberry Pi 5/4/3B+ and Zero single board computers is a motor control and GPIO expansion board designed to work with LLMs such as ChatGPT or Gemini using the board’s built-in speaker and microphone for voice interaction. It features four DC motor drivers, twelve PWM servo channels, four ADC inputs, I2C, SPI, and UART interface for sensors, and ships with two 18650 rechargeable batteries with smart power management & safe shutdown. It can be used in smart cars, humanoid robots, robotic arms, multi-legged spiders, and smart home systems. Fusion HAT+ specifications: MCU – Gigadevices GD32E203C8T6 Arm Cortex-M23 microcontroller @ 72MHz with 64KB flash, 8KB SRAM. Motor control – 4x motor ports Audio 2030 audio chamber speaker connected to an I2S audio port MEMS microphone Expansion 4-channel digital pins 4-pin I2C interface compatible with Qwiic/STEMMA Qt 7-pin SPI interface 4-pin UART interface 12-channel PWM pins for servos 4-channel […]

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 15, 2025December 14, 2025 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

reTerminal E1001/E1002 Review – B&W and color ePaper displays tested with SenseCraft HMI and Home Assistant

Seeed Studio reTerminal E1001 E002 ePaper Display review

Seeed Studio sent us samples of the reTerminal E1001 (monochrome) and E1002 (color) ePaper displays for review. They are powered by an ESP32-S3 microcontroller providing WiFi and Bluetooth LE wireless connectivity, and are designed for low-power information display applications, consuming power only when updating the screen content. This makes them ideal for tasks requiring long battery life (average of 3 months per charge, depending on how often they are updated) and always-on display capabilities. In this review, we will unbox the devices, go through a teardown, and test them with Seeed Studio’s SenseCraft no-code HMI platform, as well as ESPHome firmware for Home Assistant integration. reTerminal E1001/E1002 unboxing We received two cardboard packages that look identical and are labeled “Seeed Studio reTerminal ePaper Display”. But the sticker on the bottom side of the boxes provides clarity… Inside each box, we’ll find the ePaper display, a USB Type-C cable, a display […]

December 10, 2025December 10, 2025 by Debashis Das - No Comments

52Pi UPS Gen 6 UPS for Raspberry Pi 4/5 supports up to 4x external battery packs, PikaPython scripting

Rapsberry Pi 5 UPS with four external battery packs

The 52Pi UPS Gen 6 is another UPS solution for the Raspberry Pi 5 that supports external battery packs for long-duration projects, and uses I²C plus PikaPython scripting to manage power settings and safe shutdowns. Designed for the Raspberry Pi 5 and 4B, the module mounts on the bottom of the board and delivers power via pogo pins. It also includes an aluminum heatsink with an automatic fan for cooling. It runs on two 18650 batteries, which can be mounted to the Pi with spacers, and there is an option to add three more battery packs in parallel if you need longer runtime. The board also features a physical power button for manual control, a 12V power interface for SATA hard drives, and switching hardware (bumpless power transfer) that instantly falls back to battery power so the system stays on during a power outage. 52Pi UPS Gen 6 specifications: Main […]

December 7, 2025 by Debashis Das - 3 Comments

AQEX qUPS-P-BC-2.0 UPS HAT works with large capacity, multi-chemistry batteries (Li-Ion, LiFePO4, Sodium-Ion)

AQEX qUPS P BC 2.0 multi chemistry UPS HAT

Developed by Hungary-based AQEX, qUPS-P-BC-2.0 is a Raspberry Pi-compatible UPS HAT that supports multi-chemistry batteries, including Li-Ion, LiFePO₄, Sodium-Ion, and even supports large, high-capacity packs up to 300Ah. It is designed for applications that require long backup times and reliable 5V power. It features an offline UPS-like architecture with a highly efficient boost converter, adjustable input voltage and energy thresholds, as well as AUTO/ON/OFF operating modes to prevent reboot loops or unsafe restarts. Communication with the Raspberry Pi is handled through three GPIO pins to provide alerts for power loss and low battery. The board supports up to 7.5A discharge, 2A charging, USB-C and auxiliary 6–28V input, reverse-polarity and thermal protection, and external power-control capability. It’s also stackable with other HATs thanks to a robust soldered 40-pin header. AQEX qUPS-P-BC-2.0 specifications: Compatibility – Raspberry Pi 5 / 4B / 3B+ and other boards with compatible form factor and 40-pin PIO header […]

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

ESP32-C6-Devkit-Lipo – A small, open-source hardware ESP32-C6 board with battery support, UEXT connector

Olimex ESP32-C6-DevKit-Lipo board is a small open-source hardware board based on the ESP32-C6 WiFi 6, Bluetooth 5.0 LE, and Zigbee/Thread SoC with support for LiPo batteries and UEXT expansion modules. It’s the second announcement from the company this week, and comes after they introduced the MOD-ESP32-C5 to add wireless connectivity to boards equipped with a UEXT connector. The ESP32-C6-DevKit-Lipo adds to the list of small ESP32-C6 USB-C boards, such as the 01Space ESP32-C6 board and Seeed Studio XIAO ESP32C6, among many others. It’s actually larger than most similar boards, but differentiates itself with its open-hardware design, dual USB-C design, breadboard compatibility, LiPo battery circuitry, and a UEXT connector. ESP32-C6-Devkit-Lipo specifications: Wireless module – ESP32-C6-WROOM-1-N4 module Espressif Systems ESP32-C6 SoC CPU – Single-core 32-bit RISC-V processor @ 160 MHz Memory – 512KB SRAM, 16KB low-power SRAM Wireless 2.4 GHz WiFi 6 1T1R with Target Wake Time (TWT) support Bluetooth LE 5.0 […]

November 18, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

Brainchip AKD1500 PCIe/SPI Edge AI co-processor to power battery-operated wearables and IoT devices

BrainChip AKD1500 Edge AI co-processor with PCIe and SPI host interfaces

BrainChip AKD1500 is an ultra-efficient Edge AI co-processor delivering up to 800 GOPS while consuming just 300 mW of power, making it suitable for battery-powered wearables and IoT sensors. It’s based on the same event-based neuromorphic technology found on the earlier AKD1000, relying on spiking neural networks (SNN) to deliver real-time inference in a way that is much more efficient than traditional AI chips. What’s new here is that thanks to PCIe and SPI interfaces, the new ADK1500 co-processor can be paired to a wide range of hosts, ranging from Linux-capable application processors to resource-constrained microcontrollers with x86, Arm, or RISC-V architectures. BrainChip AKD1500 key features and specifications: Akida Neuron Fabric Clocked at 5 to 400 MHz Delivering up to 800 effective GOPS at <1mW/GOPS On-device learning capabilities to enable “secure application personalization, without the need for a Cloud connection or retraining” On-Chip Conversion Complex Memory/Storage 1MB on-chip local memory […]