Testing Category - Page 96 of 169 - CNX Software

October 27, 2016October 27, 2016 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Realtek RTL8710AF (PADI IoT Stamp) vs Espressif ESP8266 (ESP-07) WiFi RF Performance Comparison

After I posted about PADI IoT Stamp IoT kit based on RTL8710AF ARM Cortex M3 WiSoC yesterday, I was soon asked whether I could compare the RF performance against ESP8266 modules like ESP-12. I don’t have any equipment to do this kind of test, except for some simple test like testing range with WiFi Analyzer app, but I remember Pine64 told me they had some comparison data a little while, and accepted to share their results. The test setup is comprised of Litepint IQ2010 multi-communication connectivity test system and PC software, as well as the device under test (DUT) with PADI IoT Stamp (version with u.FL antenna connector) and ESP-07 ESP8266 module as a u.FL connector is required to connect the test system. They’ve tested 802.11b, 802.11g, and 802.11n, but for IoT projects 802.11b is the most important as usually long range is more important than data rate. Test results […]

October 26, 2016August 1, 2017 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Pine64 PADI IoT Stamp WiFi IoT Kit Review – Part 1: Hardware, Debuggers, and Soldering

Back in September, Pine64 unveiled their $2 PADI IoT Stamp based on Realtek RTL8710 ARM Cortex M3 WiFi SoC aiming to compete with Expressif ESP8266 solutions. The company has now sent me their complete kit for review, which beside the module itself includes a breakout board kit, and some hardware debug tools. In the first part of the review, I’ll check out the hardware, and solder the kit. I received a package with four antistatic bags. From top left to bottom right, we have PADI IoT Stamp, JLINK-OB debugger based on an STM32 MCU with some jumper wires (aka Dupont cables) for SWD signals, and a USB cable to your computer in order to flash the firmware or do some bare metal programming, a breakout board kit including two headers, a RED LED, and a resistor, and finally a USB to Serial board based on CH340G with 4 jumper wires […]

October 24, 2016October 25, 2016 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Jumper Ezbook 2 Cherry Trail Laptop with 14″ Full HD Display, 4GB RAM, 64 GB Storage Sells for $190 (Promo)

I’ve just received a newsletter from GearBest entitled “Shop Like a BOSS | Sub-$200 Ultrabooks, Gaming Gear + More” and showing “Jumper Ezbook 2 Ultrabook” laptop powered by an Intel Atom X5-Z8300 quad core processor with 4GB RAM, 64GB storage, and a 14″ 1920×1080 display selling for $189.89 if you click on a customized link (working once) in the newsletter. If you are not subscribed to the newsletter you can still get it for about $195 including shipping on GearBest or GeekBuying, which still seems like a decent deal for the features. Jumper Ezbook 2 specifications: SoC – Intel Atom x5-Z8300 quad core Cherry Trail processor @ 1.44 GHz with Intel HD graphics (2W SDP) System memory – 4GB DDR3L Storage – 64 GB eMMC flash + micro SD card slot up to 128 GB Display – 14″ LED display with 1920×1080 resolution QWERTY keyboard with touchpad Video Output – […]

October 24, 2016October 25, 2016 by Jean-Luc Aufranc (CNXSoft) - 28 Comments

Beelink GT1 TV Box Review – Part 2: Android Marshmallow Firmware

I’ve previously reviewed other Amlogic S912 TV boxes such as M12N MXQ Plus or Qintaix Q912, but Beelink GT1 has the advantage of being quite cheaper at $56 and up, but still come with many of the same features as more expensive devices. I’ve already posted pictures, and checked out the hardware design in the first part of Beelink GT1 review, so in the second part I’ll report my experience with Android, including video and audio capabilities, hardware features testing, and some benchmarks. First Boot, OTA Firmware Update, Settings, and First Impressions The device comes with two USB ports only, so I connected a USB hard drive to one of the port, and a USB hub to the other with the RF dongles for MINIX NEO A2 Lite air mouse and Tronsmart Mars G01 gamepad, as well as a USB keyboard to take screenshots. I completed the setup by adding […]

October 21, 2016April 9, 2020 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Test Widevine & PlayReady DRM, HDCP 1.x/2.x, 4K VP9 and H.265 in Android with Exoplayer App

I first heard about ExoPlayer in an Android TV Overview presentation at Linaro Connect 2014, but I never really looked into it. The source code is available on Github, and I’ve been given ExoPlayer.apk [Update April 2020: Exoplayer binary is now available on Apkpure] as it can be used to test UHD H265 support, HDCP 1.x, HDCP 2.x compatibility, PlayReady & Widevine DRM using different format and so on. So I installed it on Beelink GT1 Android TV box which I’m currently reviewing, and only include basic Widewine Level 3 DRM, and certainly does not support HDCP features. There are 9 sections in the app to test various videos and DRM schemes: YouTube Dash Widevine Dash Policy Tests (GTS) – Widewine with or without HDCP, with or without secure video path Widevine HDCP Capabilities Tests – NoHDCP, HDCP 1.0, HDCP 1.1, HDCP 2.0, HDCP 2.1, HDCP 2.2, and HDCP no […]

October 14, 2016October 7, 2017 by Jean-Luc Aufranc (CNXSoft) - 22 Comments

Zidoo X9S Android Media Center Review – Part 2: Android Firmware & OpenWrt (NAS Functions)

Zidoo X9S is more than a simple Android TV box, as it supports NAS function via OpenWrt running simultaneously with Android 6.0 and its USB 3.0 and SATA ports, as well as HDMI input function capable of recording and broadcasting videos, and supporting Picture-in-picture, so I find “Android Media Center” better fit the description for this device. I’ve already taken pictures of the Zidoo X9S and its board in the first part of the review, so I’ll test both Android 6.0 & OpenWrt firmware, and the most of the features in the second part of the review. Initial Setup and First Boot I connected the usual accessories and cables to the box including a USB 3.0 hard drive, HDMI and Ethernet cables, USB RF dongles for MINIX NEO A2 Lite air mouse and Tronsmart Mars G01 gamepad, and a USB keyboard to take screenshots. I also added a 1TB SATA […]

October 10, 2016 by Jean-Luc Aufranc (CNXSoft) - 16 Comments

Zidoo X9S Android TV Box HDMI Input Testing – Video Recording, PiP, and UDP Broadcasting

One of Zidoo X9S media center‘s key features is its HDMI Input port with support for PVR, picture-in-picture, and video broadcasting over UDP. The company has come a long way since the implementation of HDMI input on Zidoo X9 TV box, which would only support PVR function, and exclusively work in the foreground. For this review, I connected K1 Plus T2 S2 Android TV box to the HDMI input of Zidoo X9S, and started HDMI In app.The first good news is that HDMI input does work, as we can see K1 Plus user interface preview inside Zidoo X9S’ HDMI IN app. Before testing all features, let’s go through the options for Video, Audio, and Output. You can select various video resolution up to 1080p, but I left it to Auto, which for this test meant 1080p. Framerate cannot be changed and is set to Auto, while bitrate ranges from 1M […]

October 7, 2016October 7, 2016 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

How to Write ESP8266 Firmware from Scratch (using ESP Bare Metal SDK and C Language)

CNXSoft: This is a guest post by Alexander Alashkin, software engineer in Cesanta, working on Mongoose Embedded Web Server. Espressif’s ESP8266 had quite an evolution. Some may even call it controversial. It all started with ESP8266 being a WiFi module with a basic UART interface. But later it became clear that it’s powerful enough for embedded system. It’s essentially a module that can be used for running full-fledged applications. Espressif realized this as well and released an SDK. As first versions go, it was full of bugs but since has become significantly better. Another SDK was released which offered FreeRTOS ported to ESP. Here, I want to talk about the non-OS version. Of course, there are third-party firmwares which offer support for script language to simplify development (just Google for these), but ESP8266 is still a microchip (emphasis on MICRO) and using script language might be overkill. So what we […]