development board News - Page 148 of 261 - CNX Software

August 30, 2017August 30, 2017 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

$6.10 Loraduino Board Combines LoRa and Atmega328P MCU

We’ve previoulsy seen low costs SX1278 LoRa modules @ 433 MHz which you could connect to your own board, but Electrodragon is now selling Loraduino board with an Atmega328P MCU and SX1278 for just $6.10 / 5 Euros plus shipping, and using a layout similar to Arduino Pro Mini. Loraduino specifications: MCU – Microchip / Atmel Atmega328P MCU with Arduino pro mini bootloader Storage – 16Mbit SPI flash for data LoRa Semtech SX1278 IC with 433mhz, or 470mhz central frequency 10 km max range 20dbm max power rate (configurable by software) Tx current: 120 mA @ + 20 dBm; 90mA @ + 17dBm; 29mA @ + 13dBm Data Rate – 1.2K to 300Kbps with FSK; 18 bps to 37.5Kbps with LoRa Expansion SX1278 Lora: leadout for pins IO1, IO2, IO3 Atmega: 14x digital input/output pins (including 6x PWM outputs), 6x analog inputs (TBC) Misc – Programmable LED (D7), power LED, […]

August 29, 2017September 25, 2017 by Jean-Luc Aufranc (CNXSoft) - 38 Comments

$8 NanoPi Duo is a Tiny Breadboard Compatible Linux Board powered by Allwinner H2+ Quad Core SoC

It’s very easy to find breadboard compatible boards in the market with products based on Espressif chips such as NodeMCU or ESP32 boards, as well as OpenWrt board like Onion Omega2, or LinktIt 7688. However, it’s much more difficult to find powerful quad core boards in this form factor, but that’s exactly what FriendlyELEC has done with their NanoPi Duo board featuring an Allwinner H2+ quad core processor in a form factor slightly smaller than a Raspberry Pi Zero. NanoPi Duo specifications: SoC – Allwinner H2+ quad core Cortex A7 processor @ 1.2 GHz with Mali-400MP2 GPU @ 600 MHz System Memory – 256 or 512 MB DDR3-1866 SDRAM Storage – micro SD card slot, footprint for SPI flash Connectivity – 802.11 b/g/n WiFi (Allwinner XR819 module) with chip antenna, and u.FL/IPEX connector for external antenna USB – 1x micro USB OTG port Expansion headers – 2x 16-pin breadboard compatible […]

August 29, 2017August 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

ReSpeaker 4-Mic Array is $25 Quad Microphone Add-on Board for Raspberry Pi

Last year, Seeed Studio launched ReSpeaker WiFi Audio / IoT board based on Mediatek MT7688, as well as an optional microphone array board with 7 microphones and 12 LEDs. Later on, they introduced a $10 2-mic array board for Raspberry Pi Zero (W), and today the company has started to take orders for ReSpeaker 4-Mic Array for Raspberry Pi board for $24.50 plus shipping. Respeaker 4-Mic Array board specifications: Audio X-Powers AC108 quad-channel ADC with I2S/TDM output transition 4 Microphones Expansion 2x Grove interfaces (1x I2C, 1x GPIO port using pins 12 & 13) 40-pin Raspberry Pi compatible header Misc – 12 LEDs (APA102) connected over SPI, GPIO5 enables power Dimensions – 65mm x 65mm x 9mm Weight – ~20 grams The board will give Raspberry Pi board the ability to do Voice Activity Detection (VAD) aka “hot word” detection, estimate Direction of Arrival (DoA) and show the direction via the LED ring, just like Amazon Echo or Google Home. I’m using an Orange Pi Zero board with a single microphone with Google Assistant and while it works fine most of the […]

August 23, 2017 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

NVIDIA Jetson TX1 Developer Kit SE Offered for $199 (Promo)

Launched in 2015, NVIDIA Jetson TX1 developer kit integrates some serious processing power with a Jetson TX1 module with a 256-core Maxwell GPU, four Cortex A57 cores, 4GB RAM, 16GB eMMC, and plenty of ports and I/Os via a mini-ITX carrier board. The only problem is that it’s quite expensive, as it was launched with an official $599 price tag, and it’s still $579 on Amazon US. The good news is that NVIDIA decided to launch a promotion for Jetson TX1 Developer Kit SE, based on the same $500+ development kit minus USB cable and camera module, and offered for just $199. Let’s refresh our memory with the board’s specifications: Jeston TX1 module NVIDIA Maxwell GPU with 256 NVIDIA CUDA Cores Quad-core ARM Cortex-A57 MPCore Processor 4 GB LPDDR4 Memory 16 GB eMMC 5.1 Flash Storage Connects to 802.11ac Wi-Fi and Bluetooth enabled devices 10/100/1000BASE-T Ethernet NVIDIA Jetson TX1 Carrier […]

August 21, 2017November 8, 2017 by Jean-Luc Aufranc (CNXSoft) - 21 Comments

Khadas VIM2 Amlogic S912 Development Board Sells for $75 and Up

Khadas VIM2 is the only low cost development board powered by Amlogic S912 octa-core processor that I know of, but when we first wrote about the board it was not available yet. The three versions of the boards are now being sold on GearBest with the Basic version going for $74.99, the Pro version for $94.99, and the Max version for $109.99. [Update: You can get VIM2 Max for $99.99 by using GBVIM2MAX coupon code for the first 100 boards daily, and the five first boards are sold for $49.99 daily at 9:00 UTC until August 28th. Details on promotion page.] Khadas VIM2 Basic/Pro/Max specifications: SoC – Amlogic S912 octa core ARM Cortex-A53 @ up to 1.5 GHz with ARM Mali-820MP GPU System Memory Basic – 2 GB DDR4 Pro/Max – 3 GB DDR4 Storage micro SD card and 2MB SPI flash eMMC Flash – Basic: 16GB; Pro: 32GB; Max: […]

August 18, 2017October 2, 2017 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

Videostrong VS-RD-RK3399 Development Board Review – Part 1: Unboxing, Kit Assembly, SDK and Documentation

Videostrong VS-RD-RK3399 development board is a full-featured development based on Rockchip RK3399 hexa-core processor with up to 4GB RAM, and 32GB eMMC flash, and plenty of I/Os. The company has sent me a sample, and after getting some trouble going through customs with questions like “what is a development board?” and “is it a board for TV boxes or computers?”, I finally got hold of the parcel. Today, I’ll check out the board and its accessories, show how to assemble it, and since the company shared more info about documentation and software, quickly go over what’s available. Videostrong VS-RD-RK3399 Development Kit Unboxing The board was in a bland carton box, which is fine since it’s not a consumer product, with a stick showing I got the 4GB LPDDR3 / 32GB eMMC flash version. There’s also a board using 2GB/16GB configuration. The package includes the board, bottom and top acrylic plates […]

August 18, 2017August 18, 2017 by Jean-Luc Aufranc (CNXSoft) - 16 Comments

$14 Orange Pi R1 Allwinner H2+ Board Comes with Two Ethernet Ports, 256 MB RAM

Shenzhen Xunlong has introduced the new Orange Pi R1 board with Allwinner H2+ quad core Cortex A7 processor that’s a bit different from their other models, as it includes two 10/100M Ethernet port, and should be suitable for intelligent controllers, or simple IoT gateways. Orange Pi R1 board specifications: SoC – Allwinner H2(+) quad core Cortex A7 processor @ 1.2 GHz with Mali-400MP2 GPU System Memory – 256 DDR RAM Storage – micro SD card slot, 16 MB SPI flash Connectivity – 2x 10/100M Ethernet (including on via RTL8152B USB to Ethernet) + 802.11 b/g/n WiFi (Realtek RTL8189ETV) with u.FL antenna connector and external antenna USB – 1x micro USB OTG port Expansion headers Unpopulated 26-pin “Raspberry Pi B+” header 13-pin header with headphone, 2x USB 2.0, TV out, microphone and IR receiver signals Debugging – 3-pin header for serial console Power Supply – 5V via micro USB port Dimensions […]

August 17, 2017August 17, 2017 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

Raspbian for Raspberry Pi Boards Gets Upgraded to Debian Stretch

While Raspberry Pi boards support many different operating systems, Raspbian is by far the most popular option, and in the last two years the distribution was based on Jessie (Debian 8), the Raspberry Pi foundation has just announced it was now replaced by an update to Stretch (Debian 9). The Jessie version is completely gone from Raspbian Download page, and you’ll only be offered to download “Raspbian Stretch with Desktop” or “Raspbian Stretch Lite”. So what has changed compared to Jessie? Debian 9 changelog will list the main differences compared to Debian 8, but some modifications have also been made in Raspbian itself: Version 3.0.1 of Sonic Pi “Live Coding Music Synth” app – See changelog Chrome 60 stable with improved memory usage and more efficient code Bluetooth audio is supported by the bluez-alsa package by default instead of PulseAudio Better handling of “non-pi users”, as previously many applications assumed […]