RuuviTag Open Source Bluetooth & NFC Sensor Beacon is Based on Nordic Semi nRF52832 SoC (Crowdfunding)

I’ve recently featured Puck.js Bluetooth 4.2/5.0 Beacon on CNX Software, but there’s another similar option with RuuviTag, also powered by the latest Nordic Semi nRF52832 ARM Cortex-M4 SoC, and RuviiTag+ version that includes multiple sensors: 3-axis accelerometer, and temperature, humidity, and pressure sensor. RuuviTag & RuuviTag+ specifications: SoC – Nordic Semi nRF52832 ARM Cortex-M4F micro-controller @ 64 MHz with Bluetooth Smart and NFC Connectivity Bluetooth 4.2 Smart, Bluetooth 5.0 Ready; over 500 meters line of sight range (with -4dBm power); up to 1.4 km with +4 dBm Integrated NFC antenna Expansion – 8x through holes with 6x GPIOs, and 2x power signals Sensors On-chip temperature sensor RuuviTag+ – Bosch BME280 environmental sensor (pressure, humidity, and temperature), STMicro LIS2DH12 3-axis accelerometer Misc – User/reset button, 2x LEDs, 10-pin SWD debug connector Battery – CR2450 / CR2477 battery up to 10 years depending on application Dimensions – N/A Temperature Range – -40°C […]

Music802 Linux Audio & IoT Board is Powered by Atheros AR9331 SoC (Crowdfunding)

When Link Card evaluated processors for a Linux audio IoT board, they considered candidates like Allwinner H3 and Ralink RT5350, but eventually went with Atheros AR9331 due to cost, simplicity, features, and power consumption reasons for their Music802 board based on LC930 system-on-module. Music802 board specifications: SoC – Atheros AR9331 MIPS 24K WiSoC @ 400 MHz System Memory – 64MB DDR2 Storage – 16MB SPI Flash Audio – Cirrus Logic WM8960 Codec; 2x 3.5 mm jacks for Line IN and headphone; optical S/PDIF output; on-board microphone Connectivity – 2x 10/100M Ethernet ports (WAN & LAN), 802.11 b/g/n WiFi with 1x IPEX antenna connector USB – 1x USB 2.0 host, 1x micro USB port for power only Debugging –  3-pin 2.54mm pitch header for serial console Expansion – 16-pin 2.0mm pitch header for GPIO, UART, I2C, etc.. Misc – Power, system, and 2x user LEDs, 1x reset button, 1x power switch […]

OSHCHIP Breadboard Friendly Bluetooth Smart Board Comes in a Tiny 16-pin DIP Package

OSHCHIP is a tiny development board powered by a Nordic Semi ARM Cortex-M0 Bluetooth LE / ANT SoC that neatly fits on a breadboard, and beside wireless connectivity thanks to its 2.4 GHz radio, also provides up to 14 I/Os to interface with external hardware. OSHCHIP specifications: Nordic Semi nRF51822 ARM Cortex-M0 MCU @ 16 MHz with 256KB Flash Memory, 32KB SRAM Radio – 2.4 GHz Radio with support for 4 protocols: Bluetooth Low Energy (BLE) / Bluetooth Smart, Gazell, ESB (Enhanced Shock Burst), and optionally ANT Antenna – Built-in antenna, range is 10 to 20 feet, depending on environment (metal, desks, chairs, …) Expansion – 14 general purpose I/O pins. All peripherals (except the ADC) can use any I/O pin: UART, 10-bit ADC, Counter/Timers, SPI, I2C Security – AES Encryption, Random Number Generator. Misc – Temperature sensor, RTC, Watchdog Timer Quadrature Decoder, 3 LEDs, Power Supply – 1.8V to 3.6V […]

FriendlyARM NanoPi NEO Board Benchmarks

We’ve already seen how to setup NanoPi NEO with Ubuntu Core, and while it’s mostly designed as an IoT node, for example to control relays over Ethernet or the Internet, I’ve still decided to see how it would perform under load by running Phoronix benchmarks, and then network and storage (micro SD card provided by FriendlyARM). It’s a small board, so we should expect it to heat a lot under load, especially it does not come with an heatsink by default. Also bear in mind that performance may dramatically change depending on the software implementation, and for the test, I’m using the company’s Ubuntu Core firmware. Before start the benchmark, I noticed that QTe-Demo was running in the background, probably because it was used on their other board with video output or LCD. but it’s taking some CPU usage, and is absolutely not needed here. To disable it, edit /etc/rc.local, […]

Getting Started with NanoPi NEO Development Board – Ubuntu Core Firmware

NanoPi NEO is an exciting ARM Linux board due to the power it packs into its small size, and its low price starting at $7.99. It’s made by FriendlyARM, and since I’ve read some people had never heard about the company before, I’d like to point out it has been providing development boards well before the Raspberry Pi board was launched, with products such mini2440 based on a Samsung ARM9 processor introduced around year 2010. Anyway, I asked the company if they were willing to send 2 samples for review, as I plan to remove the USB & Ethernet port on one of them. Instead I got a 4 boards and accessories, so I’m going to start reviewing the board by writing a quick start guide, showing how to setup it, and check out the Ubuntu core provided by the company. If you are a fan of armbian made Debian […]

Onion Omega2 is a $5 Linux WiFi IoT Board (Crowdfunding)

Onion Omega board was first introduced in 2015. The tiny OpenWrt Linux board featured an Atheros AR9331 processor with GPIO headers, and various baseboards and add-ons. The company has now launched a Kickstarter campaign for the second versions – Omega2 & Omega2 Plus – with a faster processor @ 580 MHz, compatible with docks and add-ons boards used for Omega, and a much lower price with $5 for the Omega2, and $9 for Omega2 Plus with more storage and memory. Omega2 & Omega2 Plus specifications: WiSoC – 580 MHz processor, possibly Mediatek MT7688 MIPS processor used in LinkIt Smart 7688 System Memory Omega2 – 64MB Omega2 Plus – 128MB Storage Omage2 – 16MB flash Omega 2 Plus – 32MB flash + micro SD slot Connectivity Built-in – 802.11 b/g/n WiFi with on-board and external antenna support Via add-on boards – Bluetooth 4.0 LE, GPS, and 2G/3G Expansion – 15x GPIO, […]

PSF-A85 is a $2 ESP8285 WiFi Board for IoT and Wearables

Last month, we found out that Espressif has made a smaller version of ESP8266 targeting wearables called ESP8285, but the only development board available at the time was quite more expensive than usual at about $25. ITEAD has now released an ESP8285 module with some I/Os and an IPEX connector which they sell for just $1.99 + shipping. PSF-A85 specifications: SoC – Espressif ESP8285 Tensila WiFi SoC @ 80/160 MHz with 1MB flash Connectivity WiFi 802.11 b/g/n/d/e/i/k/r with support for STA/AP/STA+AP modes, WPA/WPA2 PSK and WEP security Antenna – IPEX connector (antenna not included) or “stamp hole interface” Expansion – 24-pin with GPIO, PWM, UART up to 460800 bps, SPI, ADC, Power Supply – 3.3 V Dimensions – 13.7 x 13.4 mm More technical information include the schematics (PDF only) and ESP8285 datasheet can be found in the Wiki, which sadly does not contain any software / getting started information, […]

Nordic Semiconductor nRF52832 Cortex-M4 ANT & Bluetooth LE SoC Gets Even Tinier

Nordic Semiconductor nRF52832 is a Bluetooth 4.2 LE SoC based on an ARM Cortex-M4F core that was first released about a year ago in a QFN48 package targeting IoT and Wearables. But if your application is really tight on space and the 6x6mm package is just too big, the company has just introduced a 3.0×3.2mm WL-CSP (Wafer Level Chip Scale Package ) package for nRF52832 decreasing the area to about one quarter of the QFN package The specifications are exactly the same as the QFN, but let’s see what we’ve got in that 9.6mm2 package: MCU Core – ARM Cortex-M4F @ 64 MHz with DSP & FPU,  512kB Flash and 64kB RAM 2.4 GHz radio for ANT, Bluetooth 4.2 LE, and Gazell connectivity; 5.5mA peak RX/TX currents; on-chip RF Balun On-chip NFC tag Peripherals – 3x Master/Slave SPI, 2x Two-wire interface (I²C), UART (RTS/CTS), 3x PWM, Digital microphone interface (PDM) Security […]

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