The OpenFlexture Microscope is a DIY, open-source, 3D-printed microscope built around the Raspberry Pi 4, a Raspberry Pi Camera Module v2, and a choice of optics or various qualities up to lab-grade optics. It can be motorized using low-cost geared stepper motors and can achieve a resolution of up to around 100 nanometers I found out about the OpenFlexture Microscope in one of the sessions at the upcoming FOSDEM 2025 event whose description partially reads: The OpenFlexure Microscope is an open-source laboratory-grade digital robotic microscope. As a robotic microscope, it is able to automatically scan microscope slides creating, enormous multi-gigapixel digital representations of samples. The microscope is already undergoing evaluation for malaria and cancer diagnosis in Tanzania, Rwanda, and the Philippines. As an open project, our key goal is to support local manufacturing of microscopes in low-resource settings. [..] high-quality consistent documentation has enabled thousands of microscopes to be built […]
Review of SMARTHON Smart City IoT Starter Kit for BBC Micro:bit
SMARTHON Smart City IoT Starter Kit for micro:bit is an educational kit for 10+ years old teaching basic projects from turning an LED to more complex projects with multiple sensors, IFTTT integration, and mobile app development. The company sent us a sample of the Start Kit along with a BBC Micro:bit board for review, and we’ll report our experience with the kit in this review. Unboxing of SMARTHON Smart City IoT Starter Kit for micro:bit The package I received includes the SMARTHON Smart City IoT Starter Kit for Micro:bit and a BBC Micro:bit V2 board since it’s not included in the starter kit. The bottom side of the package lists the main components and features a QR code pointing to the product page. The package includes cardboard and wooden models, various cables, a 180° servo, a screw set, a city map, the Smarthon IoT:bit carrier board for the BBC Micro:bit, […]
GuRu’s modular wireless power transfer system can power a drone indefinitely
California-based company GuRu Wireless has recently developed and showcased a scalable and modular wireless power transfer system that is capable of delivering power to a high-power device up to several kilowatts, such as a drone, from up to 30 feet away (a little over 9 meters). They also mention that the system can power low-power devices, like LEDs and consumer electronics, over distances of several kilometers. It’s quite an extension to the GuRu’s desk-range wireless power evaluation kit we covered in 2020. The system uses 24 GHz high-frequency millimeter-wave radio signals to deliver energy over long distances without needing batteries or tethered systems. GuRu’s system uses a phased array transmitter with proprietary RFICs, to precisely deliver power to the receiver called the Recovery Unit (RU). In a recent demonstration video, GuRu Wireless showcased their wireless power transfer system by powering a drone from 30 feet away, operating it continuously for […]
Raspberry Pi 5 edge AI computer ships with 8GB RAM, Hailo-8 AI module, supports Frigate NVR
Seeed Studio’s reComputer AI R2130-12 is an Edge AI computer with a Raspberry Pi 5 SBC with 8GB RAM and a Hailo-8 module with 26 TOPS of AI performance, suitable for video analytics, machine vision, and intelligent edge computing. The computer comes with a HAT+ with two M.2 sockets, one occupied by the Hailo-8 AI accelerator and the other available for an M.2 NVMe SSD. In some ways, it’s just a nicely packaged Raspberry Pi 5 SBC with Hailo-8 AI accelerator that we reviewed last year. reComputer AI R2130-12 specifications: SBC – Raspberry Pi 5 with 8GB RAM AI Processor – Hailo-8 M.2 AI accelerator module with 26 TOPS Storage microSD card slot, with support for high-speed SDR104 mode Optional M.2 NVMe SSD via M.2 PCIe 3.0 slot Video Output – 2x micro HDMI ports up to 4Kp60 Camera/Display I/F – 2x 4-lane MIPI camera/display transceivers Networking Gigabit Ethernet RJ45 […]
Pilet is a Raspberry Pi 5-powered modular, portable computer with 5-inch or 7-inch display, optional built-in keyboard (Crowdfunding)
Pilet is a modular, open-source hardware, portable computer designed for the Raspberry Pi 5 SBC, and equipped with a choice of displays, keyboards, and an optional battery module that can last for up to 7 hours. Two models are available: the Pilet 5 with a 5-inch display, an integrated keyboard, a trackball, a scroll wheel, a navigational switch (D-Pad), and game buttons, and the Pilet 7 with a larger 7-inch display and support for detachable modules such as a keyboard, gamepad, or deck. Pilet specifications: Supported SBC – Raspberry Pi 5 Storage – MicroSD card, NVMe SSD via module Display Pilet 5 – 5-inch IPS MIPI DSI display with 1280×800 resolution, capacitive touch screen. Pilet 7 – 7-inch IPS MIPI DSI display with 1280×800 resolution, capacitive touch screen. Video Output- 2x micro HDMI ports Networking Gigabit Ethernet RJ45 port 802.11ac WiFi 5 and Bluetooth 5.0 Optional LTE cellular via module […]
KTC A32Q8 Review – A 32-inch 4K Smart Monitor running Google TV
KTC A32Q8 is a 32-inch 4K UHD monitor running Google TV and supporting up to 3840×2160 resolution with a refresh rate of 60Hz. The monitor takes HDMI 2.1, Display1.4, or USB-C video input, comes with two 5W speakers, supports Dolby Audio and HDR, and offers WiFi and Bluetooth connectivity as well as USB 2.0 ports. A voice remote control is also included for Google TV control and configuration. In this review, we will look at the specifications, go through an unboxing, and test the various features of the KTC A32Q8 Smart Monitor. KTC A32Q8 Smart Monitor specifications Screen Size – 31.5-inch Resolution – 3840×2160 (Ultra HD) Visible area – 697 x 392 mm Panel Type – VA (Vertical Alignment) Aspect Ratio – 16:9 (Widescreen) Refresh Rate – 60Hz Response Time (GtG) – Not specified Brightness 250 cd/m² Brightness (HDR) 250 cd/m² Contrast Ratio 3000:1 (static) Colors 1.07 billion (8-bit + […]
Looktech’s AI-powered smart glasses offer a 14-hour battery life, 13MP camera, and linear audio for $209 and up (Crowdfunding)
Looktech AI Glasses are AI-powered smart glasses with a “privacy-focused design” and several lens options. They are similar to Meta’s Ray-Ban smart glasses but support GPT-4, Claude, and Gemini instead of Meta AI. Like Meta’s smart glasses, the Looktech AI Glasses incorporate headphones, a camera, and an AI model for a hands-free experience and personalized AI assistance. According to Looktech, the smart glasses can track calories, find recipes, set reminders, and perform image searches. The in-built 13MP camera can be used to capture high-res images and videos and the open-ear dual speakers provide “rich, spatialized immersive audio while keeping you aware of your surroundings.” Looktech has given some hardware specifications for the product but the list is a bit sparse. We have covered the much cheaper but underpowered LILYGO T-Glass. Although there are no promises of a physical AI agent, the Looktech glasses are similar to the M5Stack’s Module LLM […]
ESP Offline Programmer flashes firmware to ESP32 and ESP8266 modules without PC
The ESP Offline Programmer is an ESP32 board with a microSD card slot designed to flash the firmware to other ESP32 or ESP8266 modules without a PC. You’ll still need one to copy the firmware to a microSD card, but once it’s done you can just insert the microSD card into the board and after wiring is done ideally using a jig, start the flashing sequence with the press of a button. In some ways, it’s the hardware equivalent of the esptool utility and can be useful for remote deployment where carrying a laptop may not always be convenient and potentially for flashing hundreds or thousands of modules using multiple ESP Offline Programmers in a way that’s faster than using computers. ESP Offline Programmer specifications: Wireless module – Espressif Systems ESP32-WROOM-32E ESP32 dual-core Tensilica LX6 microcontroller Storage – 4MB flash Wireless 2.4 GHz WiFi and Bluetooth LE connectivity, built-in PCB […]