$2 development board features Puya PY32F030 Cortex-M0+ MCU with 64KB Flash, 8KB RAM

The Puya PY32F030 core board is a low-cost industrial development board based on the 48 MHz PY32F030K28T6 Arm Cortex-M0+ MCU, featuring 64KB flash and 8KB RAM, and capable of operating in a wide temperature range of -40°C to 105°C. It supports USB, SPI, I2C, UART, and I2S interfaces, and is designed for applications such as IoT, robotics, and automation in harsh environments. We have written about various low-cost MCUs over the past. Back in 2019, we wrote about the Padauk PMS150C, a 3-cent 8-bit MCU with 64 bytes of RAM, up to 6 I/Os, PWM, and basic peripherals. Then in...

HackerBox 0115 Wispier Upgrades Wardriving with Dual-Band Wi-Fi and GPS

HackerBox is a monthly subscription service offering development kits targeted at hobbyists, students, and electronics enthusiasts. HackerBox 0115, titled “Wispier,” is a follow-up to the earlier Wispy kit (HackerBox 0089). This latest version expands the wardriving platform with 5 GHz Wi-Fi scanning, updated firmware, improved form factor, and GPS-based geolocation. The Wispier kit is based […]

ESPHome Updates Framework and Expands Chip Support in 2025.6.0 Release

The June 2025 release of ESPHome (2025.6.0) introduces several technical updates, including a major framework upgrade, new device support, and foundational changes to ensure future compatibility and performance. ESPHome is an open-source system for building custom firmware for ESP32 and ESP8266 microcontrollers. It allows users to define device configurations using simple YAML files, which are […]

MEEPO V5 electric skateboard review – Unboxing, teardown, features and performance testing

I’ve just received an electric skateboard for review: the MEEPO V5. I initially thought I would skip that one since it’s not super relevant to the usual topics covered on CNX Software, but seeing bolts on the photos, I figured out it might still be interesting to do a teardown of the skateboard to see how it works. So here I am. I’ll also go through an unboxing first, and check its features and performance. MEEPO V5 unboxing The package was quite larger and longer than I expected. That’s partially because there were two packages: one for the electric skateboard...

ASUS Broadens Its 3.5″ SBC Lineup with New Intel Core Ultra Models

ASUS IoT has introduced two new 3.5-inch single board computers, the C5153ES-IM-AA and C7156ES-IM-AA, both based on Intel Core Ultra processors. According to ASUS, these boards are designed for embedded and industrial use cases, offering high performance, wide input voltage support from 9 to 36 volts, and multiple expansion options. Based on the official datasheets, […]

AR(T)MISTICE Forum

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Inaugural AR(T)MISTICE Forum on Digital Art Peacebuilding, a unique virtual event taking place on 23 June 2025, 16:00 - 18:00 CEST / 10:00 - 12:00 EDT.

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40th anniversary of the release of the original BBC Micro version of Elite

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Elite’s open-ended game model, and then revolutionary 3D graphics earned it a place as a classic and a genre maker in gaming history. As one of the longest-running game franchises, it paved the way for GTA, No Man’s Land, and many others.

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Enhancing Stock Price Prediction Through Integration of Astrological and Astronomical Data using XGBoost

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New research claims it is possible to increase stock price prediction by integrating Astrological and Astronomical Data with Machine Learning Algorithms. The XGBoost classifier (ML) achieved 99% accuracy in predicting stock market movements. Cover image: Astrodeck by Patricio Gonzalez Vivo

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TRMNL customizable 7.5-inch wireless E-Ink display supports plugins for greater ease-of-use

TRMNL is a 7-5-inch wireless E-Ink display based on an ESP32-C3 RISC-V WiFi and Bluetooth SoC and designed to be customizable, allowing users to disassemble their device, modify the (open-source) firmware, and retrieve API keys without voiding the warranty. The default 1,800 mAh battery is good enough for over 3 months on a charge, but the company also provides an option for a 2,500 mAh battery that is said to last for more than 6 months (not sure how the math works here).  The wireless display can be placed on a desktop, or mounted on a wall or a fridge....

Friday New Products: USB3 hub with USB-C connector, USB-C card Reader, SHTC3 sensor for breadboard, KFL05 and KP05 bearings!

USB-C-HUB is USB3.0 compliant hub with four hosts and allow you to attach more UBS devices to your phone, tablet or Macbook and any other device with USB-C OTG. USB-C-CARD-READER allow you to read and write micro SD cards with your phone, tablet, Macbook or any other devices with USB-C OTG interface. SNS-SHTC3B is lower […]