open source News - Page 61 of 91 - CNX Software

December 3, 2016December 3, 2016 by Jean-Luc Aufranc (CNXSoft) - 43 Comments

How to Build and Flash ESPurna Open Source Firmware to Sonoff POW Wireless Switch

ITEAD Studio Sonoff family is comprised of various inexpensive ESP8266 WiFi power switch, and the company sent me two of their latest CE certified models with Sonoff TH16 + external temperature & humidity probe, and Sonoff POW to measure power consumption. I checked the hardware is the first part of the review, and used Sonoff TH16 to control a water pump with the stock firmware and Ewelink Android app in the second part. It works reasonably well, but it relies on the cloud, so if you lose your Internet connection or the service closed, you can’t control the relay manually anymore. Luckily, the UART pins are exposed on Sonoff switches so you can solder a 4-pin header and connect a USB to TTL to flash your own firmware. Please don’t connect Sonoff devices to the mains when programming them, it’s very dangerous, instead the USB to TTL board will power […]

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

Hack Autonomous Driving into Your Car with Open Source Hardware Comma Neo and Open Pilot Software

George Hotz setup Comma.ai company and worked on a commercial project called Comma One to add autonomous driving to some car models, but then the US highway authorities started to ask questions and promised ever increasing fines if he could not comply with some specific safety regulations/requirements, and eventually he decided to cancel the project due to the regulatory burden. A few weeks passed since the cancellation, and he has now released Open Pilot auto-pilot software and Comma NEO a work-in-progress open source hardware platform connecting to Qualcomm Snapdragon 820 powered OnePlus 3 smartphone to run the software. The system is said to implement “Adaptive Cruise Control (ACC) and Lane Keeping Assist System (LKAS) for Hondas and Acuras”, and performs about the same as “Tesla Autopilot at launch, and better than all other manufacturers”. Open Pilot currently only supports the Acura ILX 2016 with AcuraWatch Plus and the Honda Civic […]

November 30, 2016November 30, 2016 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

$59 HiFive1 Arduino Compatible Board is Powered by Sifive Open Source RISC-V MCU (Crowdfunding)

Royalty-free RISC-V instruction sets has been getting in the news in the last few years with various MMU designs from companies or projects like lowRISC, PULPino, and SiFive, and recently there are been rumors that Samsung may use RISC-V in their future IoT SoCs. Many projects are still in progress, and while you can get involved in OnChip Open-V MCU crowdfunding campaign to their get the MCU or a development board, the cost for the MCU ($49) and development board ($99) is a little on the high side, and delivery is expected in 2018 for most rewards. SiFive appears to have a more interesting open source RISC-V solution with HiFive1 Arduino compatible board going for $59 and slated to ship between December 2016 and February 2017. HiFive1 development board specifications: MCU – SiFive Freedom E310 (FE310) 32-bit RV32IMAC processor @ up to 320+ MHz (1.61 DMIPS/MHz) Storage – 128 Mbit […]

November 18, 2016June 18, 2018 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

$49 Dashbot Car Dashboard Assistant is Powered by C.H.I.P Pro Allwinner GR8 Module (Crowdfunding)

Most companies specializing in development boards may sell a few accessories for their boards, but usually leave product design to their customers. Next Thing Co. does that too, but the company also produces some products like PocketCHIP portable Linux computer & retro game console, and more recently Dashbot, a voice controller assistant for your car’s dashboard powered by CHIP Pro module. Dashbot hardware specifications: CPU Module – CHIP Pro with Allwinner GR8 ARM Cortex A8 processor @ 1.0 GHz, 512MB NAND flash, 256 DDR3 RAM, 802.11 b/g/n WiFi, Bluetooth 4.2 External Storage – micro SD slot Display – Red LED display Audio – 32-bit audio DSP for beamforming & noise suppression; fairfield audio pre-processor with 24-bit ADC; high fidelity MEMS microphone array (106 dB dynamic range) USB – 1x USB host port Power Supply – 5V via USB port or 12V via power port (aka cigarette lighter) + backup LiFePo4 […]

November 15, 2016August 22, 2023 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

GR-LoRa is a Reverse-Engineered Open Source Implementation of LoRa PHY

LPWAN standards such as LoRa or Sigfox allow you to transmit data over long distance, at ultra low power (up to 10 years on a AA battery), and for free if your use your own network (P2P or gateway), or a few dollars per years if you go through a network provider. The low cost is possible since those standards rely on 900 MHz ISM bands, meaning nobody has to pay millions of dollars to the government to obtain a license fee. Matt Knight looked at LoRa, and while Level 2 and 3 of the protocol (LoRaWan) has public documentation, Level 1 (LoRa PHY) is proprietary and the standard is proprietary. So he decided to reverse-engineer LoRa PHY using Microchip RN2903 based LoRa Technology Mote and Ettus B210 USB software defined radio, and software packages and tools such as Python and GNU Radio to successfully deliver GR-LoRa open source “GNU Radio […]

October 7, 2016October 7, 2016 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

RabbitMax Flex IoT & Home Automation Board and Kit for Raspberry Pi

RabbitMax Flex is an add-on board for the Raspberry Pi boards with 40-pin headers, namely Raspberry Pi Model A+ and B+, Raspberry Pi 2, Raspberry Pi 3 and Raspberry Pi 0, destined to be used for Internet of Things (IoT) and home automation applications thanks to 5x I2C headers, a relay, an LCD interface and more. I’ve received a small kit with RabbitMax Flex boards, a BMP180 temperature & barometric pressure I2C sensor, and a 16×2 LCD display. RabbitMax Flex specifications: Relay – Songle SRD-05VDC-SL-C supporting 125V/250VAC up to 10A, 30VDC up to 10A Storage – EEPROM with some system information for identification IR – IR LED, IR receiver Misc – Buzzer, Button, RGB LED Expansion Header for LCD character display + potentiometer for backlight adjustment 5x 4-pin headers for I2C sensors Dimensions – Raspberry Pi HAT compliant The assembly of the kit is child’s play as you don’t even need […]

September 27, 2016 by Jean-Luc Aufranc (CNXSoft) - No Comments

BeagleBone Black Wireless Board Gets WiFi and Bluetooth 4.1 LE, Drops Ethernet

The BeagleBone Black is still one of the most popular development boards around, but in a world going more and more wireless, it only comes with a wired Ethernet interface. Seeed Studio BeagleBone Green Wireless and Neuromeka BeagleBone Air already provided BeagleBone compatible boards with WiFi and Bluetooth LE, as well as Zigbee for the latter, but now BeagleBoard.org themselves have launched BeagleBone Black Wireless with WiFi and Bluetooth 4.1 LE based on Octavo Systems OSD3358 System-in-Package with Texas Instrument Sitara AM3358 processor, 512 MB RAM, TI LDO and PMIC, and many passive components. BeagleBone Black Wireless specifications: SoC – Texas Instruments Sitara AM3358 Cortex A8 @ 1 GHz with PowerVR SGX530 GPU System Memory – 512 MB DDR3L Storage – 4GB eMMC flash + micro SD slot USB – 1x mini USB client port for power & communication, 1x USB host port Connectivity – 802.11 b/g/n WiFi + Bluetooth […]

September 6, 2016 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

MinnowBoard Turbot SBC Gets a Quad Core Atom E3845 Processor, Better Ethernet, and a Fansink

MinnowBoard Turbot open source hardware SBC was released in 2015 with an Intel Atom E3826 dual core Bay Trail-I processor, 2GB RAM, SATA and Gigabit Ethernet support, and a new version – MinnowBoard Turbot Quad – with a more powerful quad core processor, an heatsink and fan, and better Ethernet connectivity will be launched in December. MinnowBoard Turbot Quad “MBT-4210” board specifications: SoC – Intel Atom E3845 quad core Bay Trail-I processor @ 1.92 GHz with Intel HD graphics @ 542 / 792 MHz (10W TDP) System Memory – 2GB DDR3L 1067 MT/s (Soldered) Storage – 1x SATA2 3Gbs, 1x micro SD card slot, , 8 MB SPI Flash for firmware (Tianocore UEFI, Coreboot, SeaBIOS) Video & Audio Output – 1x micro HDMI connector Connectivity – 10/100/1000M Ethernet RJ-45 connector (Intel i211 instead of Realtek NIC on first board) USB – 1x USB 3.0 host, 1x USB 2.0 host Debugging […]