Video Category - Page 203 of 329 - CNX Software

August 10, 2016 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Multiple Videos Encoding and Decoding in Android on Firefly-RK3288 Development Board

Some applications like digital signage and video surveillance may require simultaneous video playback, and encoding to send over the network. ARM platforms may not be powerful enough to achieve those tasks with the processor only, but luckily many ARM SoCs include powerful video processing unit (VPU) capable of doing both hardware video encoding and decoding, leaving the CPU cores mostly free for other tasks. Firefly team has demoed such capabilities on their Firefly-RK3288 development board by displaying 7 videos on a single screen, including two previews from two USB cameras attached to the board, which are then encoded and decoded on the fly and displayed on the screen. The last three videos are played from 3 different files. So that means that 5 video decode and 2 video encode are running simultaneously. The board can achieve 26 to 30fps with 720p videos, and around 13 to 15 fps with 1080p […]

August 8, 2016 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

TW68 Smart Bracelet Measures Blood Pressure and Heart Rate for $22 and Up

Some people may need to frequently measure their blood pressure because of their health condition, but it’s often a cumbersome experience, so they may get lazy, and not do it as often as needed. TW68 smart bracelet should make this easy, as it’s your typical fitness tracker with an heart rate monitor, but adding the capability to also measure blood pressure. It’s also very cheap, and I first found it on DealExtreme where it sells for just $24. TW68 specifications: MCU – Nordic Semi NRF51822 ARM Cortex M0 micro-controller with 2.4 GHz radio Data Storage – 7 days detailed data, 23 days total data Connectivity – Bluetooth 4.0 LE Display – 0.49″ OLED display Sensors – PixArt-PAH8001EI blood pressure sensor; 6-axis Invensense-MPU6500 accelerometer and gyroscope Function Health tracker: Blood pressure measurement, Heart rate monitor, Pedometer, Sleep tracker Other functions: Call/Message notification, Fall reminder, Social sharing, Time, Alarm clock Misc – […]

August 8, 2016August 8, 2016 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

ESP8266 Gets USB Support Thanks to ESPUSB Software Stack

Neither ESP8266 nor ESP32 support USB, so what am I babbling about? No, ESP8622 did not suddenly grow a USB PHY, but cnlohr decided to implement virtual USB support using two GPIOs (12 & 13) for the D+/D- USB signals, meaning you can connect any ESP8266 module through USB, or even update the firmware through USB without external hardware, apart from a single extra resistor. The source code is available on espusb repo on github. Please note that the code is currently work in progress, and USB implementation currently only works at 1.5 Mbit/s, with potentially future support for 12 Mbit/s. That’s the demo, and an explanation about the design process. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011. www.cnx-software.com

August 6, 2016 by Jean-Luc Aufranc (CNXSoft) - 23 Comments

Inside LG 4K TV, and My (Unsuccessful) Attempt at Repairing It

Long time readers of this blog may remember that I organized a crowdfunding event aiming at raising funds to buy equipment to test 4K TV boxes and mini PCs in early 2015, and one of the items I ended up purchasing was LG 42UB820T 4K television. It worked well for over a year, but I started to notice a single vertical appear on the TV in June, or about 18 months after purchase. A few more lines appeared in the following week, and it appears to have stabilized as shown in the picture below. While I understand that in Europe a 2-year warranty period is legally required, I’m based in Asia, and all I got was a one year warranty for the TV. So I had three choices: Ignore the problem Pay for the repairs Try to repair it myself So far, I’ve selected solution 1. because that’s the easiest […]

August 3, 2016August 3, 2016 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Ipega PG-9057 is a Bluetooth Gaming Gun for Android & iOS Smartphones, TV Boxes, Computers, etc…

I first came across Ipega brand when I reviewed E-Box T8-4 TV box which included Ipega PG-9028 Bluetooth game controller, which also serves as an handle for your smartphone, so that you can easily play game on your Android smartphone while holding the gamepad. That kind of controller is now pretty common, but Ipega 9057 might be a little less common as instead of a gamepad, a gun carries your smartphone instead making it suitable for first person games such as Dead Trigger, Shadowgun, or Modern Combat. PG-9057 gun specifications: Connectivity – Bluetooth 3.0; 8 meters range Stand – 45 to 95mm for smartphones with up to 6″ displays USB – 1x micro USB for charging Controls – Various buttons and joysticks (See graph below) Misc – LED for battery level, vibration motor, reset pinhole Battery – Built-in Lithium 600mAh; up to 25 hours play time; up to 2 hours […]

August 1, 2016 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

vESPrino ESP8266 USB WiFi Dongle Supports Add-on Boards (Crowdfunding)

Last month, I wrote about WiThumb a USB WiFi adapter based on ESP8266 processor which can conveniently be plugged into any USB port for power and programming. However, the hardware design was questionable with the WiFi PCB antenna placed close to other components, and a temperature sensor likely to get pretty hot inside the case. There’s now another device based on a similar concept with vESPrino USB stick that also expose a few I/Os through its enclosure. ESPrino specifications: WiFi module – ESP-12 FCC & CE Certified module based on Espressif ESP8266 USB – 1x micro USB port, 1x USB port Expansion – 6-pin female header with 4 GPIOs, 5V and 3.3V Programming & debugging – Via USB through CH340G USB 2 Serial adapter Misc – Push button (GPIO0), WS2812b RGB LED (GPIO2), temperature sensor connected to ADC? (not visible on schematics) Power Supply – 5V through micro USB or […]

July 29, 2016January 22, 2025 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

FTLAB FSG-001 is a $30 Geiger Counter / Radiation Detector for Android & iOS Smartphones

I’ve just read an article on Tizen.org about Samsung and Intersoft Eurasia’s collaboration about a “personal radiation monitoring device DO-RA” sending data over Bluetooth 4.0 LE. But a visit to their website showed other models such as DO-RA-Q using a 3.5mm audio jack, and compatible with smartphones, and Windows & Linux computers. I could not find any of their devices for sale, so I searched for alternatives and found FTLAB FSG-001 radiation counter on Aliexpress, Amazon, and eBay selling between $30 and $40. FTLAB FSG-001 Geiger counter specifications: Radiation measurement of: gamma, X-rays Measurement range – 0.1 to 200 μSv/h Measurement error – <30% within a given deviation between Dimensions – Φ10 x 30 mm (total length: 47mm with 3.5mm audio jack) Weight – 6 grams Operating temperature – 10 to 40 ℃ You’ll need to plug the dongle into your smartphone audio jack, and download FTLAB “SmartGeiger” app for […]