IoT News - Page 172 of 181 - CNX Software

April 28, 2014May 1, 2014 by Jean-Luc Aufranc (CNXSoft) - 20 Comments

$15 AsiaRF AWM002 & AWM003 Wi-Fi Modules Run OpenWRT, Expose GPIOs

This week-end I explained how to build a web server that could be used for automation and other Internet of things applications for less than $15 by combining an Arduino Leonardo with ECN18J60 Ethernet module. The hardware itself is cheap, but it may not always be convenient, or cost effective, to wire your house or office with Ethernet cables. One solution is to use Wi-Fi modules such as TI CC3000 evaluation module, an Electric Imp module, or Ariettea G25 + Wi-Fi board, but these usually cost between $30 to $50 in single quantity. AsiaRF AWM002 and AWM003 are low cost 802.11n Wi-Fi modules with access to GPIOs that could be an interesting alternative as they cost $15 + shipping, and even below $10 in quantities. The only difference between the two is that AWM003 supports more RAM (64MB vs 32MB). Here are the specifications for these modules: SoC – Mediatek/Ralink […]

April 26, 2014January 17, 2019 by Jean-Luc Aufranc (CNXSoft) - 21 Comments

How to Make a $15 Web Server for IoT Applications

Arduino_Leonardo_Ethernet_ENC28J60_Assembled

If you have an embedded project that requires some GPIOs, and Ethernet connectivity, you now have a few choices of low cost low boards such as the Raspberry Pi with Broadcom ARM11 SoC for $35 + shipping, Texas Instruments Connected LaunchPad with an ARM Cortex M4 MCU for $20 including shipping, and today I’ve given a try at a solution to run an HTTP server with an Arduino Leonardo clone connected to ENC28J60 Ethernet module that together cost about $15 including shipping. This Ethernet module has been around for a while and is well supported, I just never took the time to give it a try before. I’ve purchased ENC28J60 module on eBay for $3.46 and connected it via SPI to an Arduino Leonardo clone I acquired as part of a kit via Indiegogo for $12. The kit is not available for purchase outside the crowdfunding campaign, but you can […]

April 19, 2014May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Embedded Linux Conference 2014 Schedule

The Tenth Embedded Linux Conference (ELC 2014) will take place on April 29 – May 1, 2014 at the San Jose Marriott in San Jose, California. The event will feature 90+ sessions on embedded Linux, Android and IoT with over 450 attendees expected to attend. It will also be co-located with Android Builders Summit and the AllSeen Alliance Hackfest. Even if you can’t attend it’s still interesting to see what will be discussed at the event to get a grasp of on-going developments, learn a few things about different optimization techniques, and so on. So I’ve gone through the sessions’ description, and I’ve designed my own virtual schedule with sessions that could be of interest. April 29 9:00 – 9:30 – Keynote: The Paradox of embedded and Open Source by Tim Bird, Sony Mobile Linux has taken the embedded world by storm. Billions (with a ‘B’) of devices have now shipped […]

April 16, 2014November 23, 2014 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

Atmel SAMA5D3 Xplained Board Unboxing and Quick Start Guide

Atmel SAMA5D3 Xplained is an evaluation board running Linux powered by SAMA5D36 ARM Cortex A5 micro-processor with 256 MB DDR2, 256 MB flash, two Ethernet ports, 3 USB connectors, and more. This embedded board targets industrial automation, networks, robotics, control panels and wearable applications. The only video output is an LCD connector so it is reserved for headless or flat panel based applications. You can check full specs on my Atmel SAMA5D3 Xplained announcement post. The company kindly sent me a sample, so that I can share my experience with the board. I’ll first post some unboxing pictures, show how to get started with the pre-installed image, and build my own Linux image. The board can be purchased for $79 from Atmel e-Store, as well as several distributors (P/N: ATSAMA5D3-XPLD). Atmel SAMA5D3 Xplained Unboxing I’ve been sent the board via DHL in the following package, which gives a short desscription […]

April 15, 2014 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

$14 Digispark Pro is a Tiny Arduino Ready Board Supporting over 25 Shields (Crowdfunding)

Digispark Pro is yet another small Arduino compatible board, but it costs only $14, and over 25 small form factor shields for Wi-Fi, BLE, mesh networking, etc.. are available for the platform. Let’s get straight into the hardware specs: MCU – AVR MCU @ 16 Mhz with 16KB Flash Memory (14.5K+ after bootloader) I/Os 14 I/O pins (2 shared with USB) I2C, true SPI, UART, LIN, and USI ADC on 10 pins 3 PWM Channels (which can be assigned to a selection of pins) USB – Micro USB for debugging, communication and power Misc – One button usable as reset, program, or user button, Power and Test/Status LEDs, user accessible solder jumpers to disable LEDs, and other features for lower power consumption Power – 5V via micro USB, or External Source – 5v or 6-16v (automatic selection). On-board 500ma 5V regulator Dimensions – 26.7mm x 18.3mm The board is compatible […]

April 2, 2014 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Ingenic Newton Platform for Wearables is Powered by MIPS Based JZ4775 SoC

Imagination Technologies has published a blog post about Newton, a tiny reference design for wearables based on Ingenic JZ4775 MIPS SoC found in some recent smartwatches such as SmartQ Z1 (The CPU not the module). This module targets wearables, IoT, healthcare, home appliances, security, industrial control, consumer electronics and more. Newton Specifications: SoC – Ingenic JZ4775 MIPS Xburst processor @ 1 GHz with 2D GPU, and VPU supporting 720p@30fps for MPEG-2, MPEG-4, VC-1, H.264, VP8, and RV9 codecs. System Memory – Up to 3GB mobile DDR3/DDR2/LPDDR1 Storage – Up to 32 GB eMCP eMMC flash Display Support – LCD or EPD, with touch panel and backlight Audio – Digital MIC and Speaker Connectivity – 4-in-1 combo with Wi-Fi (802.11 a/b/g/n at 2.4/5 GHz), Bluetooth 4.0 + EDR (including Bluetooth LE support), NFC, and FM Sensors – 3-axis gyroscope, accelerometer magnetometer, pressure, humidity and temperature, bio-signal detection and processing USB – USB […]

March 28, 2014March 28, 2014 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Texas Instruments Tiva C Series Connected LaunchPad Unboxing and Quick Start Guide

Texas Instruments Tiva C Series TM4C1294 Connected LaunchPad is an evaluation kit for the Internet of things with a Cortex-M4 MCU (Tiva TM4C1294), an Ethernet port, and USB interfaces for power and debugging. At $19.99 including shipping via Fedex, it’s one of the cheapest ways to get devices online. I’ve purchased one via TI e-Store, and already received it. I’ll post some pictures of the kit, go through the Quick Start Guide, and provides links to resources to go further. EK-TM4C1294XL Connected LaunchPad Unboxing I’ve received the kit in the package below with feature a QR Code linking to http://www.ti.com/launchpad, as well basic specifications (refer to my previous post for specs), list of tools (Code composer studio, Tivaware, Keil, IAR…) and package content. In the box we’ve got the board itself, a retractable Ethernet cable, a USB to micro USB cable for power and debugging, and Connect LaunchPad Quick Start […]

March 11, 2014March 28, 2014 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

Texas Instruments Tiva C Series TM4C1294 Connected Launchpad Sells for $20

There are now many ultra low cost MCU development kit selling for $15 to $25 such as STMicro Discovery Board, but for this price, they’ll usually just feature the MCU, a micro USB, pin header, maybe and maybe some sensors, and they usually lack any form of connectivity, at least without extra hardware. With Tiva C Series TM4C129 Connect Launchpad, Texas Instruments brings a board that can be used for IoT application out of the box thanks to the addition of an Ethernet port. The board sells for just $19.99, which means you could easily make something like a connected 4-relay control system for about $25. Connected LaunchPad evaluation kit specifications: MCU – Texas Instruents TM4C1294NCPDT ARM Cortex-M4 @ 120MHz with floating point, 1MB Flash, 256KB SRAM, 6KB EEPROM, Integrated 10/100 Ethernet MAC+PHY, data protection hardware, 8x 32-bit timers, dual 12-bit 2MSPS ADCs, motion control PWMs, USB H/D/O, and many […]