CNX Software - Embedded Systems News

August 28, 2017May 25, 2020 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

X-Powers AC108 is a Quad-Channel ADC Chip for Microphone Arrays

X-Powers, a company better known to supply PMIC “companion” chip for Allwinner processors, also made some audio chips including AC108 is a chip specifically designed for microphone arrays with support for 4 microphones, and an I2C + I2S output interface to the host processor. Microphone arrays are particularly useful for smart speakers, and especially hot word detection (voice activity detection) as single microphone setups like I use with Orange Pi Zero, may have trouble detecting hot words like “OK Google” in noisy environments (music playing, alarm ringing…). X-Powers AC108 specifications: 108 dB dynamic range (A-weighted) @ 0 dB boost gain -90 dB THD+N (total harmonic distortion plus noise) @ 0 dB boost gain 4x programmable boost amplifiers with 0dB to 45dB in 3dB step ADC sample rates supported – 8kHz,12kHz,16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz,96kHz Analog mixer and digital mixer in record data path 4x fully differential microphone inputs: MIC1P/N […]

August 27, 2017June 18, 2018 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Embedded Linux Conference & Open Source Summit Europe 2017 Schedule

The Embedded Linux Conference & IoT summit 2017 took place in the US earlier this year in February, but there will soon be a similar event with the Embedded Linux Conference *& Open Source Summit Europe 2017 to take up in Europe on October 23 – 25 in Prague, Czech Republic, and the Linux Foundation has just published the schedule. It’s always useful to find out what is being discussed during such events, even if you are not going to attend, so I went through the different sessions, and compose my own virtual schedule with some of the ones I find the most interesting. Monday, October 23 11:15 – 11:55 – An Introduction to SPI-NOR Subsystem – Vignesh Raghavendra, Texas Instruments India Modern day embedded systems have dedicated SPI controllers to support NOR flashes. They have many hardware level features to increase the ease and efficiency of accessing SPI NOR […]

August 26, 2017August 26, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Broadcom Introduces Three 802.11ax “Max WiFi” Chips: BCM43684, BCM43694 & BCM4375

We’ve already written about the new 802.11ax WiFi standard that promises up to 10 Gbps data rates, support for 2.4 & 5 GHz bands, up to 4x longer range, and better handling of high density scenarios. It appears 802.11ax we’ll be known as Max WiFi to the masses, and Broadcom has unveiled Max WiFi solutions for home and enterprise routers, as well as a smartphones. There are currently three Max WiFi solutions from Broadcom: BCM43684 & BCM43694 4×4 802.11ax chips, respectively optimized for residential and enterprise access points, share the same key features: Support for four streams of 802.11ax 4.8 Gbps PHY rate 160 MHz channel bandwidth 1024 QAM modulation Uplink & downlink OFDMA (Orthogonal Frequency Division Multiple Access) MU-MIMO ZeroWait DFS (Dynamic Frequency Selection) AirIQ interference identification Full compliance to IEEE and WFA 802.11ax specifications BCM4375 smartphone combo chip: Support for 2-streams of 802.11ax Bluetooth 5 including Low-Energy Long […]

August 25, 2017August 28, 2017 by Ian W MORRISON (Linuxium) - 20 Comments

Beelink AP34 Ultimate Fanless mini PC Review with Windows 10 and Ubuntu

The AP34 Ultimate combines the passive cooling of an Apollo Lake N3450 SoC with 8GB of RAM and 64GB of storage in a small box form-factor mini PC. Together with the device comes a pair of HDMI cables, a power adapter, VESA mount with screws, and a couple of leaflets covering basic information. Not only does this device have three USB 3.0 ports, full size SD card, Gigabit Ethernet, headphone jack and HDMI port, it also has a (vacant) M.2 slot allowing additional storage with the full specification being: although there was no included remote control. The device comes pre-loaded with activated Windows 10 Home 64-bit and plenty of available free space at (initially before updates) just over 43GB. The Windows performance is unremarkable and the reason for this is obvious looking at the basic benchmarks. The reason being that the eMMC is slow which is disappointing for an ‘ultimate’ […]

August 25, 2017October 30, 2017 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

Purism Librem 5 Open Source Linux Smartphone Focuses on Privacy (Crowdfunding)

Purism is computer manufacturer founded in 2014 whose mission is to “provide the highest quality hardware available, ensuring the rights of security, privacy, and freedom for all users”, and so far, they’ve delivered several Intel Core i5/i7 laptops running their PureOS Linux distribution based on Debian with an emphasis on privacy protection. The company has now launched a crowdfunding campaign on their own website to develop and manufacture Librem 5 Linux smartphone with the same philosophy. The phone will use open source software even for the GPU, so the company currently selected i.MX6 for the project since they can use etnaviv open source driver for the Vivante GPU, but they hope to switch to the more powerful i.MX8 processor for the final design, which explains why the hardware specifications are not set in stones yet: SoC- NXP i.MX6/i.MX8 CPU with Vivante GPU System Memory – 3GB LPDDR3 Storage – 32GB […]

August 24, 2017August 25, 2017 by Jean-Luc Aufranc (CNXSoft) - 21 Comments

X96 Mini Amlogic S905W Android TV Box Sells for $25 and Up

Last week, we discovered Amlogic S905W processor through Tanix TX3 Mini TV box, with the processor maxing out at 4K @ 30 Hz in order to provide cost-competitive solutions, for example against Rockchip RK3229 TV boxes. However, at the time, the price was not that attractive. Prices have come down quickly, as Tanix TX3 Mini can be purchased for about $29 with 1GB RAM /16GB flash, and $32 with 2GB RAM/ 16 GB flash using coupon PYNNHDAH. X96 Mini is an even cheaper option as the Amlogic S905W is sold for as low as $24.99 shipped on Banggood. X96 mini TV box specifications: SoC – Amlogic S905W quad core ARM Cortex-A53 @ up to 1.5 GHz with penta-core Mali-450MP GPU @ 750 MHz System Memory – 1 or 2GB DDR3 Storage – 8 or 16GB eMMC flash + micro SD card slot Video & Audio Output – HDMI 2.0a output with HDR, […]

August 24, 2017 by Jean-Luc Aufranc (CNXSoft) - No Comments

ComfilePi Industrial Touch Panel PCs are Based on Raspberry Pi CM3 Module

ComfilePi CPi-A070WR & CPi-A102WR are industrial IP65 panel PCs powered by Raspberry Pi CM3 compute module, with respectively 7″ and 10.2″ resistive touchscreen displays, and that run modified version of Raspbian OS. ComfilePi CPi touch panel computers specifications: SoC – Broadcom BMC2837 quad core Cortex A53 processor @ up to 1.2GHz with Broadcom VideoCore IV GPU System Memory – 1 GB Storage – 1x micro SD Slot Display 7“ 800×480 Touchscreen Pressure-sensitive (Resistive Film Type) LCD display OR 10.2” 800×480 Touchscreen Pressure-sensitive (Resistive Film Type) LCD display Audio – 3.5mm audio out port I/Os 40-pin header socket based on Raspberry Pi 40-pin header pinout with 22x GPIO with ESD protection circuit 2x RS-232 terminal blocks 1x I2C terminal block USB – 3x USB 2.0 ports Connectivity – 10/100M Ethernet, optional WiFi via USB dongle Misc – 1x Piezzo buzzer Power Supply – 12~24V DC via 3-pin terminal block Dimensions (housing […]

August 24, 2017 by Jean-Luc Aufranc (CNXSoft) - No Comments

YotaPhone 3 Dual Screen Smartphone to Launch for $360 and Up (in China)

Russia based Yota makes some unusual phones with dual display with a standard color front display, and an e-paper rear display that allows you to check the time without pressing a button, keeping displaying important information even when your battery is completely discharged, and more. The first Yotaphone was launched in December 2012, followed by a prettier and more powerful Yotaphone 2 in December 2014, but we’ve had to wait nearly three years for the company – with some fresh money and technical involvements from Chinese partners – to introduce YotaPhone 3 at the Russian Embassy in Beijing. The phone is powered by a Qualcomm Snapdragon 625 processor, and features a 5.5″ super AMOLED display on the front, and a 5.2″ E-Ink display on the back. Yotaphone 3 preliminary (& partial) specifications: SoC – Qualcomm Snapdragon 625 octa-core Cortex A53 processor @ up to 2.0 GHz with Adreno 506 GPU System […]