HDMI 2.1 was announced last January with support for up to 10K @ 120 Hz while using Display Stream Compression (DSC) and new 48Gbps cables, as well as other improvements. The HDMI Forum has now released version 2.1 of the HDMI specifications. The detailed specifications are only available to HDMI adopters, but an overview of the specifications can be downloaded by simple mortals. From the table above, we can see HDMI 2.1 adds 7 new features compared to HDMI 2.0b: Dynamic HDR (HDR dynamic metadata) – HDR data (depth, detail, brightness, contrast, and color gamuts) can now be optimized on a scene-by-scene or even a frame-by-frame basis Enhanced audio return channel (eARC) – eARC supports high-bitrate home theater audio formats, object-based audio, uncompressed 5.1 and 7.1, and 32-channel uncompressed audio thanks to up to 37 Mbps audio bandwidth. Variable Refresh Rate (VRR) – Syncs up source and display with continually […]
Review of ITEAD Studio IP66 Waterproof Case for Sonoff Wireless Switches (and Other Boards)
ITEAD Studio recently launched a waterproof enclosure for $2.90 (now at still a decent $3.90), rated IP66, for their family of Sonoff wireless switches, so you can safely use them outdoors protected from rain and dust. The company sent me one sample together with Sonoff RF switch supporting WiFi and 433MHz RF connectivity so that I can test the case, and write a review describing my experience. I’ll focus on the waterproof since this is the main focus of this review, and beside Sonoff RF, you can also use Sonoff basic, various other Sonoff boards (POW, TH10/T16), and even other development boards as we’ll seen below. I’ll be using the stock firmware with eWelink app, but if you prefer alternative firmware like ESPurna or Sonoff-Tasmota, you may want to flash it to your Sonoff now. The waterproog case has two parts, a rubber cord, two waterproof PG7 connectors, and four […]
Cheap Evil Tech – WiFi Deauther V2.0 Board and Autonomous Mini Killer Drones
Most technological advances usually improve life of people, and with the costs coming down dramatically over the years, available to more people. But technology can be used for bad, for example by governments and some hackers. Today, I’ve come across two cheap hardware devices that could be considered evil. The first one is actually pretty harmless and can be use for education, but disconnects you from your WiFi, which may bring severe physiological trauma to some people, but should not be life threatening, while the other is downright scary with cheap targeted killing machines. WiFi Deauther V2.0 board Specifications for this naughty little board: Wireless Module based on ESP8266 WiSoC USB – 1x Micro USB type changed, more stable. Expansion – 17-pin header with 1x ADC, 10x GPIOs, power pins Misc – 1x power switch, battery status LEDs Power Supply 5 to 12V via micro USB port Support for 18650 […]
Gameshell Portable Retro Gaming Console Features Clockwork Pi Allwinner R16 Board (Crowdfunding)
Allwinner R16 with its lowly four Cortex A7 cores and Mali-400MP2 GPU would not normally come to mind when designing a gaming console. But Nintendo used the R16 processor twice in their retro gaming consoles: NES Classic and SNES Classic Edition. Clockwork, a startup based in Hangzhou, China, decided they could also do gaming console with the processor: Gameshell. But their product is quite different, as it’s both a portable console with 2.7″ display, and a development platform with the console based on Clockwork Pi development board, and an Atmel AVR (Arduino) based keypad board. Gameshell specifications: Clockwork Pi development board SoC – Alwinner R16-J quad core Cortex A7 processor @ 1.2 GHz with Mali-400MP2 GPU System Memory – 512MB or 1GB (in future revision of the board) Storage – 1x micro SDHC slot Video Output / Display I/F – 18-bit RGB display interface, micro HDMI (planned in revision of […]
Detect Lightning with Those AMS AS3935 “Thunder” Boards
Launched in 2012, AMS AS3935 Franklin lightning sensor is – at its name implies – a lightning sensing IC. The chip was designed for low power, portable or fixed wire-line applications, and beside detecting electrical emissions from lightning activity, it can also provide an estimation of the distance to the head of the storm from 40km away down to 1km, while filtering out other signals from motors, microwave ovens, etc… The chip interfaces via SPI or I2C to the host processor / micro-controller, and comes in a small MLPW-16 (4x4mm) package. Price is $3.55 per unit for 1k orders. Applications include wearables, golf carts, pool safety, portable GPS, bike computers, weather stations, uninterruptible power supplies, smart grid systems, environmental monitoring systems, etc… Basically, AS3935 can be used either for weather monitoring, or safety applications. I’ve found two maker boards with the chip: MikroElectronika Thunder Click board compatible with MikroBUS socket […]
Bolt IoT Platform Combines ESP8266, Mobile Apps, Cloud, and Machine Learning (Crowdfunding)
There are plenty of hardware to implemented IoT projects now, but in many cases a full integration to get data from sensors to the cloud requires going though a long list of instructions. Bolt IoT, an Indian and US based startup, has taken up the task to simplify IoT projects with their IoT platform comprised of ESP8266 Bolt WiFi module, a cloud service with machine learning capabilities, and mobile apps for Android and iOS. Bolt IoT module hardware specifications: Wireless Module – A.I Thinker ESP12 module based on ESP8266 WiSoC Connectivity – 802.11 b/g/n WiFi secured by WPA2 USB – 1x micro USB for power and programming Expansion – 4-pin female header and 7-pin female header with 5 digital I/Os, 1x analog I/O, and UART Misc – Cloud connection LED The hardware is not the most interesting part of Bolt IoT, since it offers similar functionalities as other ESP8266 boards. […]
JeVois-A33 Linux Computer Vision Camera Review – Part 2: Setup, Guided Tour, Documentation & Customization
Computer Vision, Artificial Intelligence, Machine Learning, etc.. are all terms we hear frequently those days. JeVois-A33 smart machine vision camera powered by Allwinner A33 quad core processor was launched last year on Indiegogo to bring such capabilities in a low power small form factor devices for example to use in robotics project. The company improved the software since the launch of the project, and has now sent me their tiny Linux camera developer kit for review, and I’ve already checked out the hardware and accessories in the first post. I’ve now had time to test the camera, and I’ll explained how to set it up, test some of the key features via the provided guided tour, and show how it’s possible to customize the camera to your needs with one example. Getting Started with JeVois-A33 In theory, you could just get started by inserting the micro SD card provided with […]
BBen MN10 TV Stick Review – Windows 10, Ubuntu 17.04, Benchmarks, and Kodi
The BBEN MN10 is the second Apollo Lake device to be released in the stick form-factor and on paper looks to have a lot to offer: It features an Apollo Lake N3350 SoC, an unusual 3GB of RAM, 64GB of storage and is cooled by a ‘mute’ fan. The devices comes in a plain box with a power adapter, and a leaflet style manual. It also included a three-pin UK power adapter, as this was advertised as the ‘BBen MN10 Mini PC – UK PLUG BLACK’. Looking at the detail specifications: We can immediately see discrepancies as the device does not have a ‘RJ45 Port Speed: 1000M LAN’ port, and was not supplied with ‘1 x HDMI Cable’ nor ‘1 x Remote Control’. Powering on the device and the ‘mute’ fan is also a miss-representation as it starts immediately and is noticeably noisy. It also runs at full speed regardless […]