Raspberry Pi News - Page 103 of 151 - CNX Software

July 4, 2018 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

DFRobot 7″ HDMI Display with Touchscreen Sells for $69

There are plenty of HDMI displays, but if you want a smaller size it become more complicated although some 7″ HDMI displays are available. However, if you want to add touchscreen support, then the choice becomes even more scarce, especially if you want a neatly packaged solution. That’s why DFRobot’s 7″ HDMI display with a 5-point touchscreen may be interesting, and as a bonus it also features mounting holes for Arduino & Raspberry Pi boards. Specifications: Display – 7″ display with 1024×600 resolution @ 43 Hz (60Hz is possible, but not recommended as it will not be full screen) Interfaces – HDMI input for video, micro USB port for touchscreen Voltage & current – 5V @ 160 mA with HDMI connection (1.2A max) Dimensions – 183 x 100mm; mounting hole size: 3.1 x 6mm Weight – 328g Despite the 1.2A maximum current, the company claims an external power supply is […]

July 3, 2018 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Connect Multiple Rotary Encoders to Arduino, ESP8266, Raspberry Pi, etc… with I2C Encoder V2 (Crowdfunding)

Rotary encoders are pretty common devices that convert the angular position of a shaft to analog or digital output signals with quadrature-encoded A / B pulses the most common way of reporting the position to the micro. So for each encoder you’d need 2-pin, and if your project use many of those you may quickly run out of pin, interrupts, etc… Simone Caron has decided to tackle this issue by creating an I2C encoder board, which works with various encoders, and whose second revision is now offered on Kickstarter. The I2C Encoder V2 board supports standard mechanical encoders, illuminated RGB encoders, and clickable rotary encoders, each of which may be with or without dent. The board also comes with 3 GPIOs following RGB LED footprint, but also usable as PWN, GPIO, or ADC, and each board’s I2C address can be configured with some soldering on A0 to A6 pins. Finally, […]

June 29, 2018 by Jean-Luc Aufranc (CNXSoft) - No Comments

Raspberry Pi Zero (W) Shield for Arduino is an Arduino UNO Baseboard for RPI Zero Board

There are already various Arduino compatible shields for Raspberry Pi where the add-on board connect to a Raspberry Pi 3 board to provide Arduino headers, but Raspberry Pi Zero (W) Shield for Arduino is a little different as it acts as a baseboard with Arduino header for Raspberry Pi Zero (W) RPI Zero (W) shield specifications: Reset switch for the micro-controller LED – Shield power LED, LED connected to Arduino pin 13, LED connected to Raspberry Pi GPIO pin 13 Expansion Female headers allowing for full-access to all Arduino pins. ICSP header access for AVR Micro-controllers Misc 3mm mounting holes for securely mounting Raspberry Pi Zero (W) to shield (mounting hardware included) Solder-jumpers to disconnect Micro-controller SDA/SCL pins from pull-up resistors Solder-jumper to disconnect Raspberry Pi GPIO13 from LED Power Supply – 6.5 to 12V power supply (6.5 to 9V recommended) via 2.1mm power barrel jack, or 5V via micro […]

June 29, 2018July 14, 2018 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

LoStik USB Dongle Adds LoRa Connectivity to any Computer or Linux Board (Crowdfunding)

We’ve covered plenty of hardware with LoRa radio from gateways, to Arduino shields, tracker boards, and mini PCIe cards, but after reading an article on Time4EE this morning, I realized we never wrote about any LoRa USB stick. LoStik – previoulsy LoRa Stick – is an open source hardware USB dongle based on Microchip RN2903 / RN2483 LoRa module, and offered on CrowdSupply for $39. LoStik specifications: USB – USB 2.0 port LoRa Connectivity Microchip RN2903 – 915 MHz for US, Canada, South America and Australia Microchip RN2483 – 868 Mhz for Europe Receiver Sensitivity – down to -146 dBm TX Power – adjustable up to +18.5 dBm Range – up to 15 km coverage in suburban and up to 5 km coverage in urban areas Misc – 2x user LEDs Power Consumption – 140 ma typical TX, 20 ma idle (with power LED) Dimensions – 80 mm x 25 […]

June 22, 2018 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

NoCAN IoT Platform Leverages Raspberry Pi & Arduino for CAN Bus Projects (Crowdfunding)

Many IoT projects rely on wireless connectivity through WiFi or Bluetooth, but in some cases it may be more reliable and convenient to use wired connectivity. The CAN Bus is a little like a low bandwidth Ethernet PoE solution for IoT, as it allows to transfer data over a serial connection while provided power at the same time, and can be daisy chain to support multiple boards. Omzlo’s NoCAN IoT platform provides a CAN bus solution leveraging Raspberry Pi 3 board through their PiMaster HAT acting as a CAN bus gateway, and Arduino compatible CANZERO boards to which you can connect sensors and actuators. Omzlo PiMaster HAT specifications: MCU – STMicro STM32F042 Cortex-M0 32bit ARM MCU – 48Mhz. Networking – 125000 bps CAN bus up to 300 meters range GPIO – Communicates with Raspberry Pi through SPI + GPIOs Security – Smart power switch with over-current protection. Power Supply – […]

June 20, 2018June 20, 2018 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Raspberry Pi 3 and Movidius Neural Compute Stick to the Rescue Against Child Pornography

Warning note: While there won’t be any NSFW photos in this post, there will be some photos of ladies in light clothing (e.g. bikini) and “naked” animals for testing purpose… Intel released Movidius Neural Compute Stick allowing low power image recognition at the edge earlier this year, and we’ve seen it work just fine with Raspberry Pi 3 board delivering three times the performance against an inference solution leveraging VideoCore IV GPU. Christian Haschek owns a photo hosting site (PictShare) which happens to run open source code with the same name, and allows user to upload images anonymously. However, he soon found out that at least one user uploaded some child pornography. He contacted the authorities, but then wondered whether there may be others? Since there are simply too many photo on the website to look it up manually, he decided to look for a solution, and went with a […]

June 15, 2018July 3, 2019 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

ModBerry M500 Industrial Computer Upgraded to Raspberry Pi 3 B+ with PoE Support

TECHBASE has been making modular industrial computers based on hobbyist boards for several years with products like ModBerry M300 IoT Gateway. ModBerry M500 is another of their model, powered by a Raspberry Pi 3 board and launched in 2016. The company has now upgraded the industrial gateway to Raspberry Pi 3 B+ board, and added PoE support in the process. ModBerry M500 specifications: SoC – Broadcom BCM2837B0 quad-core Arm Cortex-A53 processor @ 1.4 GHz with VideoCore IV GPU System Memory – 1GB DDR3 Storage – 8GB micro SD card Video & Audio Output – HDMI 1.4 and 3.5mm jack for CVBS (composite + stereo audio) Connectivity Gigabit Ethernet (max 300 Mbps) Dual band 802.11 b/g/n WiFi and Bluetooth 4.2 LE Optional Zigbee, LTE/3G, GPS, WiFi, and Bluetooth cards USB – 2x USB 2.0 host ports Expansion I/Os 2x RS-232/RS-485 4x digital inputs, 4x digital outputs up to 30V DC 1-wire […]

June 12, 2018June 12, 2018 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

Add a 3.5″ Hard Drive to Your Raspberry Pi with Suptronics X830 Add-on Board

If you ever plan to make your own NAS with an Arm Linux board, the Raspberry Pi board should not be your first choice, as regular readers will already know they are already cheaper and/or better solutions such as NanoPi NEO2 NAS Kit, ODROID HC2, or Popcorn Transformer to name a few. But if you already own one of the Raspberry Pi boards and a 3.5″ hard drive, you considering going with Suptronics X830 add-on boards – also sold under Geekworm brand – instead of a DC powered USB enclosure since it avoids extra cabling and the use of two power supplies. SupTronics X830 board features: SATA connector for 3.5″ SATA drive up to 10TB implemented via USB 3.1 Gen1 to SATA 6Gb/s bridge controller USB 3.0 port to connect to Raspberry Pi board Power Supply Input – 14 to 40V DC input via 5.5/2.5mm power barrel jack (Powers the […]