Easily Make DIY Battery Packs with this Building Kit for 18650 Batteries (Crowdfunding)

Vruzend-Battery-Kit-v2.0

If you have a project that requires some serious battery power, and can’t find a battery pack that matches your requirements, making your own is possible, but usually expensive as the commonly used spot welding method requires expensive tools. Vruzend has created a modular lithium-ion battery building kit that greatly ease the making of DIY battery pack using 18650 battery cells using caps, nuts and bolts. There are two versions of the kit: V1.5 kit which supports up to 3.5A continuous and 7A peak per cell, and for higher power levels, the new V2.0 kit can handle up to 20A continuous (25A peak) per cell thanks to nickel plated copper-based conductors. It makes it suitable for EV racing, high power battery banks, and other power-hungry projects. The short video below explains how the kit works. https://www.kickstarter.com/projects/1354698863/diy-li-ion-battery-building-kit-make-your-own-1865?ref=nav_search&result=project&term=diy%20battery Vruzend battery build kit is now offered on Kickstarter, and the projects has been […]

TTGO T5 is an ESP32 WiFi + Bluetooth Board with ePaper Display and Speaker

Lilygo has made another ESP32 board part of their TTGO family with TTGO T5 board powered by Espressif System ESP32 WiFI & Bluetooth SoC, and offering a choice of ePaper displays from 1.54″ to 2.9″, as well as built-in speaker. TTGO T5 board specifications: SoC – Espressif ESP32 dual core Tensilica LX6 processor with WiFi 802.11 b/g/n and Bluetooth 4.1 LE Storage – micro SD card slot Display (one of the other) 1.54″ 200×200 black & white ePaper display; Full refresh time – 2 seconds 2.13″ 250×122 black & white ePaper display; Full refresh time – 2 seconds 2.7″ 264×176 black & white ePaper display; Full refresh time – 6 seconds 2.9″ 296×128 black & white ePaper display; Full refresh time – 2 seconds Viewing angle – >170° Power Consumption – Refresh: 26.4mW(typ.); standby: <0.017mW Connected via SPI interface Audio – Mini Speaker Expansion – 24-pin header with GPIO, UART,  […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM

Measy RCA220 is a $35 Wireless AV Transmitter / Receiver Kit with a 200m Range

Measy-RC220

There are several ways to send video & audio data over a distance without using long cables, from professional DVB-T transmitters with up to 10km range, to cheaper DIY SDR solutions with a shorter range , and HDMI transmitters leveraging your existing electrical cables. Those all work for different target applications (drones, video signal extender), but cost at least a few hundred dollars. If you just intend to transmit composite video (PAL/NTSC) and audio within a house or building, Measy RCA220 will be a more cost effective solution with a range of up to 200 meters. Measy RCA220 AV transmitter / receiver specifications: Connectivity – 2.4GHz wireless transmission with up to 200m range; built-in antenna, 8x selectable channels Video / Audio Ports Transmitter – RCA composite input, 2x RCA L/R audio input Receiver – RCA composite output, 2x RCA L/R audio output Misc – IR jack, channel selection button, front […]

Ugoos Releases Android 7.1.2 Nougat (Beta) for Rockchip RK3288 TV Boxes

Rockchip RK3288 quad core Arm Cortex A17 processor was first released in early 2014 with Android 4.4, and TV boxes that are still sold with the processor – e.g. Lenovo G66 – often still come with Android 4.4 or Android 5.1, and development boards do barely better as ASUS Tinker Board supports Android 6.0.1, while Firefly-RK3288 may never get its expected Marshmallow update. However, Ugoos decided to support their RK3288 TV boxes for a longer time, and has now released a beta version of Android 7.1.2 firmware for Ugoos UM3, UT3, and UT3s TV boxes. Some of the features and Ugoos specific settings available in the firmware include: CIFS & NFS Clients Support, Samba Server Masked HDMI Screen Rotation Root access Hardware Monitor Wireless Assistant Gamepad Settings Debug Settings User Scripts USB Mode Settings If you want more details about what each setting does, read the post about Ugoos settings. […]

RockPro64 Board is Now Available for $59.99 and Up for Early Adopters & Developers

Several Rockchip RK3399 development boards and SBCs were announced or launched in Q4 2017 / Q1 2018, including Orange Pi RK3399, ODROID-N1, Rock960, etc… RockPro64 was the most aggressively priced of the lot as it was expected to launch for about $60. The good news is that Pine 64 is now selling the first production batch for $59.99 (2GB RAM) or $79.99 (4GB RAM). The less good news is that software is still being worked on so the company only recommends it for early adapters and developers. RockPro64 specifications have changed a bit since the board now comes with LPDDR4 memory instead of LPDDR3: SoC – Rockchip RK3399 hexa-core processor with 2x ARM Cortex A72 cores up to 2.0 GHz, 4x Cortex A53 cores, and an Arm Mali-T860 MP4 GPU System Memory – 2 or 4 GB LPDDR4, dual channel Storage – eMMC flash module (up to 128 GB), micro […]

Jorjin WS2118/WS2119 is a Sigfox & Bluetooth LE Module Based on STMicro BlueNRG-1 & S2-LP Chips

Jorjin-WS2119-Sigfox-Bluetooth

Jorjin WS211X is a family of certified dual radio modules combining Sigfox wireless technology thanks to STMicro BlueNRG-1 BLE System-on-Chip (SoC) and Bluetooth Low Energy (BLE) using STMicro S2-LP sub-1GHz RF transceiver. Two models are currently available: WS2118-00 certified for Sigfox regions RCZ1 (Europe, Middle East, South Africa) and RCZ3 (Japan), and WS2119-A0  for regions RCZ2 (USA, Mexico, Brazil) and RCZ4 (Australia, New Zealand, Taiwan, Hong Kong, Singapore, Argentina). Jorjin’s WS211x specifications: Connectivity Bluetooth LE STMicro BlueNRG-1 Arm Cortex M0 @ 16 MHz with 160 kB flash, 24 kB RAM with retention Up to +8dBm BLE RF output power Sigfox STMicro S2-LP sub-1GHz transceiver WS2118-A0 – Up to +16 dBm sub-1GHz RF output power WS2119-A0 – Up to +27dBm sub-1GHz RF output power Receiver sensitivity – Up to -88dBm (BLE) and -130dBm (Sub-1GHz). I/Os –  38-pins package. Security –  STSAFE-A1SX for SIGFOX secure element Power Supply – 2.0 to 3.6V Dimension […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025

Eufy EverCam Full HD Waterproof WiFi Security Camera Works for Up to a Year on a Single Battery Charge

Wired security cameras can be troublesome to installed due to the cabling required, but luckily there are solutions to avoid all those long cables with solar powered IP cameras, or battery powered IP cameras. A few years ago I wrote about Immedia Blink WiFi HD camera that claimed to last a year on a charge, and despite several complains on Kickstarter, they seem to still be in business.  There’s now a more advanced model by Eufy – an Anker brand – that supports 1080p video recording with motion sensing and face recognition, that also lasts up to one year on a charge, and offers free storage. Eufy EverCam specifications: Resolution – 1080p Video Format – H.264 High profile Image Sensor – Sony Exmor IMX323, 1/2 9-inch Field of View (FoV) – 140° Night Vision Range – up to 10 meters Digital Pan & Zoom  – Yes, up to 8x Motion […]

Pepper Jobs W10 GYRO is an Air Mouse Designed for Windows 10

Air mice are remote controls including motion sensors allowing to wave the remote to emulate a mouse, as well as some buttons like in a standard remote control, and in some cases a keyboard. Some people do not like this type of user input, but that’s my favorite way (I’m using MINIX NEO A2 Lite) of controlling TV boxes, as it provides a mouse pointer, a QWERTY keyboard, and various keys including volume keys and a D-Pad. The air mouse is also compatible with computers running Windows, Ubuntu, or other operating systems but some operations can not easily be done as the “Windows” key is missing, and shortcuts such as Alt+Tab are not possible. The guys at Pepper Jobs must have had the same kind of problem, as they’ve designed an air mouse working better with Windows 10 with keys to launch the default web browser, Task Manager, File Explorer, […]

Boardcon LGA3576 Rockchip RK3576 System-on-Module designed for AI and IoT applications