With Texas Instruments SimpleLink Wi-Fi CC3000 and Qualcomm Atheros AR4100P embedded Wi-Fi processors that fully handle Wi-Fi internally, and transfer data to an MCU with an SPI interface, and solutions such as Electric Imp, there are already ways to add Wi-Fi at relatively low cost to appliances. There’s now another solution available on the market with Lantronix xPico Wi-Fi Module. Listed features and specification of xPico Wi-Fi: SoC – ARM Cortex M3 class processor with 1MB on-chip Flash and 128 KB SRAM Storage – SPI Flash storage Wireless LAN Interface IEEE 802.11 b/g and IEEE 802.11n (single stream) WLAN interface (2.4 GHz only) IEEE 802.11 d/h/i/j/k/w/r WPS 2.0 support u.FL connector for external antenna Serial Interface Two Serial CMOS Ports (3.3V, 5V tolerant) 300 to 921.6 Kbps Flow control XON/XOFF, RTS/CTS (SPort 1 only) Lantronix tunneling application (SPort 1 only) Host Interface – Dual Serial Port, SPI, USB 2.0 (device), […]
CheapCast Chromecast Emulator for Android (Beta) is Available for Download
Yesterday, I wrote developers were working on making any media App and any Android device compatible with Chromecast. Sebastian Mauer has taken care of the latter, by publishing CheapCast (Beta) in Google Play. Several people have been trying it successfully, including in iMito MX1 mini PC. I’ve been less lucky. I’ve tried it by running YouTube App in Zopo ZP900S smartphone (Android 4.0.4) with 4 devices: Tronsmart T428 – “Works” but the video won’t start playing. (Bug reported in Github’s issue tracker) [Update: It now works with the latest version in Google Play]. MK908 – Refused to install anything in Google Play today… (Older Android 4.1 firmware) Wandboard Quad – “Works” but the video won’t start playing. CX-01 – CheapCast will crash when playing video I can’t really play YouTube videos over 360p without buffering here, so the reason the video won’t start in T428 or Wandboard Quad might be […]
$275 HackRF Open Source Software Defined Radio (SDR) Platform
HackRF is an open source hardware project to build a Software Defined Radio (SDR) supporting a frequency range between 30 MHz and 6GHz in both directions (Tx and Rx, half-duplex) with a maximum bandwidth of 20MHz. Jawbreaker (shown below) is a beta hardware that has been tested by several developers and beta testers, and applications such as Digital Audio Broadcasting (DAB), Bluetooth monitoring, spectrum sensing, wireless microphones, AIS, FM radio, etc.. have already been ported to the platform. In order to lower the cost of the hardware, Michael Ossmann has launched a Kickstarter campaign to fund mass production. There seems to be many SDR enthusiasts as the campaign has already reached its funding target ($80,000) and received for over $300,000 in ledges. What is Software Defined Radio (SDR) and What Can it Be Used for? Before providing details about the hardware and software, it may be useful to provide some […]
Fritzing Open Source Software Designs PCB Layouts from Breadboard Drawings
Earlier this year, I’ve tried Gumstix Geppetto, a web-based application that let you easily design and order boards. You can just add some building blocks in Chrome browser, connect them, and you’re ready to order a PCB. However, the setup fee of $1999 reserves it to businesses. Don’t worry If you’re just a hobbyist as Fritzing, an open source software supporting Windows, MacOS and Linux, allows you to draw breadboard connections, and automatically route the schematics, and the PCB layout. You can then export the gerber files, or order directly from Fritzing Lab. The software is not exactly new, but it’s the first time I’ve come across it. I’m using Ubuntu 12.04 64-bit, so let’s download, install and run the corresponding version:
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wget http://fritzing.org/download0.8.3b/linux-64bit/fritzing-0.8.3b.linux.AMD64.tar.bz2 tar xvf fritzing-0.8.3b.linux.AMD64.tar.bz2 cd fritzing-0.8.3b.linux.AMD64/ ./Fritzing |
I’ve decided to connect an LED on the breadboard, and control it with an Arduino Leonardo board to try the software. Alternatively, you could also play around […]
MK908 Rockchip RK3188 mini PC Android 4.2.2 SDK Leaked
We’ve had the Linux source code for RK3188 for a little while, which allowed a preliminary Ubuntu image to boot on devices such as Tronsmart T428. But AFAIK, we did not have any Android SDK for RK3188 HDMI TV Stick, until now. A new user on ARMTvTech has uploaded 5 rar files that can be decompressed into a single 3.2GB file called mk908_RK3188_R-BOX_ANDROID4.2.2-SDK.tar.gz. I’ve had a look, and this is the content of the file which appears to be a complete Android 4.2.2 SDK for MK908. There’s 2 documents in Chinese: mk908_checklist.doc – Apparently some instructions, or recommendations specific to Android MK908_checklist_kernel.docx – Some details about the kernel config There are also more documents and directories in RKTools/docs, but I haven’t checked the details:
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ls android分区修改说明.pdf Camera_for_RockChipSDK参考说明_v4.0.pdf Infrared remote control R-Box Platform User Manual_V0.9.pdf RK29OR30_ota.pdf RKeMMCSupportList Ver1.09_2013_4_15.pdf RKNandFlashSupportList Ver2.61_2013_4_15.pdf RKRemoteControl RK USB Application Note_V2.0.pdf ROBX-SDK 发布说明(RK3188_R-BOX_ANDROID4.2.2-SDK_V1.0.0_130514).pdf Rockchip Parameter File Format Ver1.3.pdf SDK 发布通知.pdf wifidisplay |
Back to the root directory, we’ve got a Makefile, and mkimage.sh script, but both are called by 3188.sh script which apparently builds all, and generates […]
Developers Are Working on Chromecast Functionality From Any Android Apps via Any Android Devices
If you don’t just come back from (too long) holidays, you should know Google has released the Chromecast, a $35 HDMI TV Stick that uses a protocol called DIAL to let users stream online videos on the TV via your mobile device or mirror your Chrome browser on the TV. However, there are currently quite a few limitations. It can only be used with apps specifically designed for Chromecast (e.g. YouTube, Netflix,…), and Chromecast is the only available receiver, and can only be purchased in the US. Luckily these may not be an issue soon… Koushik Dutta (Kouch) has taken care of the first issue by modifying Cyanogenmod to allow any video or audio app to stream the media files via the TV, using Android notifications. Perfect. Moving to the second issue. If you don’t live in the US, you’re still stuck, and if you do live in the US, […]
Huawei MediaQ M310 Is Now Available For Purchase
Huawei MediaQ M310 is a media player based on Hisilicon K3V2 quad core SoC, the company unveiled at CES 2013. The company expected the product to be released in Q3 2013 (about now), and the good news is that it has started to pop-up on Aliexpress for $109 including shipping. The bad news is that the only seller has no feedback at all, so you take an extra risk if you buy right now, and I’m sure it will show up in more places in the days or weeks ahead. Let’s remind us of the specifications: SoC – Hisilicon K3V2 Quad-core Cortex A9 processor with Vivante GC4000 GPU System Memory – 1GB RAM Storage – 4GB Flash + microSD card slot Video I/O – 1x HDMI In,1x HDMI Out Audio I/O – HDMI, SPDIF, 3.5mm stereo jack, Mic mono USB – 2x USB 2.0 (1 extension from Y cable) + […]
$85 Jesurun K8 (Hi720) Android 4.2 STB Powered by Rockchip RK3188
It looks like MK888 (aka CS918 or K-R42-1), or more exactly MK888B (Includes Bluetooth support), is now getting some competition with Jesurun K8, another Rockchip RK3188 set-top box with 2GB RAM, 8GB Flash, and Bluetooth support, that sells for as low as $80 on Aliexpress (called Hi720), and $85 on DealExtreme. Here are the specifications listed on DX: SoC – Rockchip RK3188 quad core Cortex A9 @ 1.6GHz + Mali-400 MP4 GPU System Memory – 2GB DDR3 Storage – 8GB Flash + SD card slot (up to 32GB) Connectivity: Wi-Fi 802.11b/g/n Bluetooth V2.1 10/100M Ethernet USB – 3x USB 2.0 port Video Output – HDMI 1.4 + AV Audio Formats – MP3 / WMA / WAV / OGG/OGA / FLAC / APE / AAC/M4A / RM Video Codecs – H.264 / VP8 / RV / WMV / AVS / H.263 / MPEG4 Power supply – 5V/2A Dimensions – 14.9 cm x […]