IR blasters can be used to control multiple IR devices through infrared, or other interfaces, for example DVR can use such device to change the channel of a set-top box just before recording. RedRat-X is one of those devices for automating control of TVs, STBs and other infrared equipment, but it’s quite more versatile, as beside its built-in IR blaster, it adds 3 IR outputs were you can connect your own IR transmitters, as well as USB and Ethernet for remote controls. Furthermore, it can also take add-on modules to emulate Bluetooth and RF4CE remote controls. RedRat-X specifications: IR blaster via the front of the unit. 0 mA to 250 mA in 100 steps. 3x plug-in IR jack sockets which can be used in two modes: Current mode (default): For use with plug-in IR flashers – 0mA to 100mA in 100 steps. Voltage mode: To interface to IR distributions systems, […]
Amlogic T962E SoC Powers $55 Alfawise H96 Mini TV Box with HDMI Input, HDMI Output
HDMI input can be a useful addition to Android TV boxes, or media centers, as they allow for functions such as PiP (Picture in Picture), PVR/DVR (Personal / Digital Video Recording), and potentially video broadcasting with the box taking input from your set-top box (or other HDMI device), and broadcasting the video over your network in order to make it accessible to other computer or mobile devices on your home network, or the Internet. We started to see HDMI input on devices powered by Mstar MSO9810 processor a few years, and more recently Realtek RTD1295 processor has become more popular with products such as Zidoo X9S, Beelink SEA I, or EWEAT R9 Plus. Amlogic appears to have joined the fray with Amlogic T962E processor, a family normally used for TVs instead of TV boxes, found in Alfawise H96 mini 4K TV box with HDMI In and Out, 2GB RAM, and […]
Arm’s Platform Security Architecture Aims to Secure the Internet of Things (IoT)
News are published nearly everyday about a security breach or flaw in IoT devices, and last year, Softbank CEO, and new Arm owner, Masayoshi Son explained that to reach his goal of one trillion IoT devices and singularity, security had to be addressed, as everything was currently too easily hackable, including cars equipped with lots of electronics but very weak security. As Arm Techcon 2017 is underway, the company has been working on improving IoT security and announced the Platform Security Architecture (PSA) designed for low cost IoT devices. PSA has three major components: Threat Models and Security Analyses derived from a range of typical IoT use cases. Architecture specifications for firmware and hardware. An open source project, similar to Arm Trusted Firmware for mobile clients. PSA is designed for low cost IoT devices, which would have not the resources (processing power, memory, battery power…) to run a full Trusted […]
Tronxy X3S 3D Printer Review – Part 2: Upgraded Heatbed and RAMPS Board
Karl here. So the bed I mentioned in the first part of Tronxy X3S review is not very good. It took about 10-11 minutes to heat up to 60 deg Celsius. I also mentioned I was going to upgrade the board to a RAMPS board. Today we are going to look at both these upgrades. New Heated Bed I can take no credit for this one but I wanted to pass this along. Folger tech sells a 12v 280w heated bed stick on pad. I picked this up for $20, but is now $22. In order to do this upgrade you will need a MOSFET, 12V/30A power supply, and of course the pad above. Super easy installation. Remove the bed and stick on the self adhesive pad centered. Replace the power supply with new one. Should be self explanatory. In order to power this bed a MOSFET is needed. A […]
Nerdonic Exen Mini is the World’s Smallest 32-bit Arduino Compatible Board (Crowdfunding)
Back in June, we reported about μduino board, which at 12×12 mm may well be the world’s smallest Arduino compatible board. It is based on Microchip Atmel ATMEGA32U4 8-bit AVR microcontroller. But there’s now a new board in town which claims to be the world’s smallest 32-bit Arduino board: Exen Mini measuring 14.9×14.9 mm. While I’m patiently waiting for an Intel’s DMCA request, or more likely an email requesting an update once the name has changed, like I had to do for Atomwear Vigekwear, let’s have a look at what the board has to offer. Exen Mini specifications: MCU – Microchip Atmel SAMD21 Cortex M0+ MCU @ 48 MHz with 256KB flash, 32KB SRAM I/Os via 2x 5-pin 2.54mm pitch headers Up to 8x digital I/O Up to 8x PWM Up to 6x analog (ADC) 1x UART 1x I2C 1x reset Limits – 3.7V, 7mA USB – 1x micro USB […]
JeVois Smart Machine Vision Camera Review – Part 1: Developer / Robotics Kit Unboxing
JeVois-A33 computer vision camera was unveiled at the end of last year through a Kickstarter campaign. Powered by an Allwinner A33 quad core Cortex A7 processor, and a 1.3MP camera sensor, the system could detect motion, track faces and eyes, detect & decode ArUco makers & QR codes, follow lines for autonomous cars, etc.. thanks to JeVois framework. Most rewards from KickStarter shipped in April of this year, so it’s quite possible some of the regular readers of this blog are already familiar the camera. But the developer (Laurent Itti) re-contacted me recently, explaining they add improves the software with Python support, and new features such as the capability of running deep neural networks directly on the processor inside the smart camera. He also wanted to send a review sample, which I received today, but I got a bit more than I expected, so I’ll start the review with an […]
Voladd Cloud-Connected Linux 3D Printer is Powered by BeagleBone Black Board (Crowdfunding)
So far, all of the 3D printers that have been reviewed on this blog require you to design or download a 3D object on your computer, and print it from an SD card. But thanks to OctoPrint software and cheap ARM Linux developments boards, it has become possible to add a Linux computer with webcam to remotely start and control the 3D printer for a few dozens dollars. Karl has even released an OctoPrint image for Orange Pi Lite board. Voladd 3D printer already embeds a Linux board, namely the BeagleBone Black running Debian, which allows the 3D printer to be easy to use since no software installation is required. You can start printing by selecting an object in a web browser or an app in your smartphone, and they’ve also taken steps to eliminate/reduce maintenance tasks, such as the inclusion of a filament cartridge. Voladd 3D printer specifications: Internal […]
AMBE+2 Vocoder Promises High Voice Quality at Low (2.0 to 9.6 Kbps) Data Rates
Opus 1.2 open source audio codec was release a few months ago with the ability to deliver low power low high-quality audio bitrate for speech with bitrates as low as 12 Kbps. Digital Voice Systems (DVSI) claims to have gone even lower thanks to their AMBE+2 vocoder (Advanced MultiBand Excitation) providing high-quality speech at data rates from 2.0 to 9.6 kilobytes per second. AMBE+2 vocoder is said to outperform the company’s previous generation AMBE+ Vocoder as well as the G.729 and G.726 vocoders, while operating at only 4.0 Kbps. The vocoder is suitable for mobile radio, secure voice, satellite communication, computer telephony, digital voice and storage applications The solution can be integrated into product either using software licensing, or through Vocoder chips, and the company lists the following key benefits: Maintains speech intelligibility and speaker recognition at rates as low as 2.0 kbps Resistant to background noise and channel bit errors […]