LimiFrog is a Bluetooth 4.1 Wearables Devkit Based on STM32L4 with Lots of Sensors (Crowdfunding)

LimitFrog is a tiny board powered by STMicro STM32-L4 microcontroller with Bluetooth 4.1 connectivity, plenty of sensors, and that can run code bare metal as well as RiOT real-time operating system. LimiFrog specifications: MCU – STMicro STM32-L4 ARM Cortex M4 micro-controller @ 80 MHz with DSP, 512KB flash, 128KB RAM External storage – 8MB serial flash for data that supports FAT32 file system Display – 160×128 RGB565 OLED display Connectivity – Bluetooth 4.1 (Panasonic PAN1740) Sensors (Follow this link for datasheets of most components) Pressure, altitude & temperature (LPS25H) 3-axis accelerometer, 3-axis gyroscope (LSM6DS3) 3-axis magnetometer (LIS3MDL) Ambient light, proximity and distance (VL6180X) Ambient sound (SPU0414H5H) USB – micro USB port for power and programming Expansions – 11-pin (through holes) providing access to SPI, I2C, CAN, PWM, GPIOs, ADC, DAC, Analog out, and power signals (3V out GND) Battery – 500 mAh (hours to weeks of battery life depending on […]

Mixtile GENA is a Wearables Development Kit Inspired by Pebble Watch

The first Pebble watch with a black and white e-Ink display and Bluetooth for smartphone connection launched in 2012 via Kickstarter, and it  became one of the most successful crowdfunding campaigns so far. The watch can now be purchased for $100, but Focalcrest, a startup based in Shenzhen, designed Mixtil GENA development kit with similar features and user interface, although with different electronics components, that goes for $34 on Tindie. Mixtile GENA specifications: Processors Mediatek MT6260 ARM7EJ-S processor @ 364 MHz with 8MB RAM and 16MB Flash Nordic Semiconductor nRF51822 ARM Cortex M0 Bluetooth Smart SoC External Storage – micro SD card slot (Up to 8GB) Display – “Energy-saving” reflective LCD Connectivity – Bluetooth 4.0 LE USB – micro USB 2.0 port Sensor – Gravity sensor Misc – Up, Down, Enter and Power/Return buttons Battery – 270 mAh/3.7V Lithium-ion battery (4 to 5 days on a charge for typical usage) […]

$55 UWatch UX Strapless Heart Rate Monitor Watch Syncs with iOS and Android Devices

Last time I checked about heart rate monitor, they required a chest strap to monitor ones heart rate, which I found cumbersome. It’s been while though, and I’ve now been informed that a low cost Bluetooth strapless heart rate monitor watch was available for $59.99 on GeekBuying. This type of product should provide a much more accurate evaluation of your daily calories burn rate than typical fitness bands based on an accelerometer and gyro sensor, but I’m not quite sure how they compare to the old models with a chest strap. Uwatch UX specifications and features: SoC – Mediatek Aster MT2501 ARM7 processor @ 108 MHz (A lower end version of MT2502 used in LinkIt One Devkit) System Memory – 32MB RAM Storage – 24MB NOR flash Heart rate monitor – Built-in photoelectric heart rate sensor Other sensors – magnetometer, 3-axis gravity and acceleration sensor Connectivity – Bluetooth 4.0 and […]

Seeed Studio Introduces Automation and Wearable Kits for Intel Edison

Intel Edison is a $50 module with a dual core Atom processor @ 500Mhz and a single core Quark MCU @ 100 Mhz, Wi-Fi and Bluetooth 4.0, as well as headers for I/Os that’s destined to be used in wearables and IoT applications. Seeed Studio has now launched two kits for the Intel module for home automation and wearables. Grove Indoor Environment Kit for Intel Edison The automation kit comes in a small blue box with the following parts (Intel Edison and baseboard not included): 1x base shield v2 that plugs into Edison baseboard and allows Grove modules connections 11 grove modules –  temperature & humidity, LCD RGB backlight, relay, moisture sensor, servo, light sensor, buzzer, UV sensor, PIR motion sensor, encoder and button. 2x 26 AWG Grove Cables 9V to barrel jack adapter 1x USB cables 1x User guide Programming is done with Edison Arduino IDE as explained in […]

Mifree HX-V5 Bluetooth Smart Fitness Tracker sells for $14

Mifree HX-V5 is a waterproof Bluetooth 4.0 activity tracker with fitness tracking and sleep monitoring functions just like Vidonn X5, except the device bring the price level to a new low, as it sells for just $14 including shipping on GeekBuying, and currently about $20 on Aliexpress, but there are few sellers, and more may come up around the $15 mark. HX-V5 smart band specifications differ depending on the sites too, not for the user exposed features, but for the internals [Update: GeekBuying told me they were given the wrong information, so I updated the specs accordingly): SoC – TI CC2541 Bluetooth SoC Storage – 4MB flash, enough to preserve 60 days of data Display – 0.91″ OLED display, 128×32 pixels Connectivity – Bluetooth 4.0 LE Sensors – 3-axis MEMS sensor IP Rating – IP67 (unlikely IMHO) Battery – 3.7V/70mAh Li-ion battery,  good for 10 to 12 days. 2 to 3 hours charging time. Dimensions […]

Mediatek LinkIt Assist 2502 Open Source Hardware Board Targets Wearables and IoT Applications

After LinkIt ONE, Mediatek Labs has introduced a new IoT development kit based on their Aster M2502 ARM7 processor with LinkIt Assist 2502 comprised of AcSiP MT2502A IoT SiP Core module, a 802.11b/g/n module, a GNSS module, and an exchangeable 240×240 16-bit color capacitive touch LCM Board. The AcSiP module can also be purchased separately, so you could use LinkIt Assist 2502 board for early development, because moving to your custom hardware based on AcSiP MT2502A module. LinkIt Assist 2502A specifications: MCU – AcSiP AI2502S05 module with  MT2502A (Aster) ARM7 EJ-STM processor @ 260MHz, 4MB RAM, 16MB flash Display – 240×240 LCD module; 16-bit color depth; transflective; based on ST7789S driver IC. Connectivity Wi-Fi 802.11 b/g/n via AcSiP CW01S module based on MT5931 SoC Bluetooth 2.1 SPP and 4.0 GATT dual mode (part of MT2502A) GPS via AcSiP CW03S module based on MT3332 chip supporting GPS, GLONASS, and BeiDou. GSM […]

Texas Instruments Introduces MSP432 ARM Cortex-M4F MCU Family

Texas Instruments has just launched a successor for its 16-bit MSP430 MCU family with MSP432 MCU series featuring a 32-bit ARM Cortex-M4F core, a DSP, up to 256 KB flash, up to 64 KB SRAM, and according to the company ” delivering a ULPBench score of 167.4 outperforming all other Cortex-M3 and -M4F MCUs on the market”. The new MCU family targets  consumer & portable electronics, building & factory automation & control, smart grid & energy,  healthcare & fitness, and wearables applications. Key features listed for MSP432P4xx: MCU – 32-bit ARM Cortex-M4F up to 48 MHz with FPU and DSP. Delivers 3.4 Coremark/MHz Memory – Up to 64 KB RAM;  Selectable RAM retention Storage – Up to 256 KB Flash; dual bank for simultaneous reading and writing Security – 256-bit AES encryption, JTAG access lock, 4 IP Protection regions EnergyTrace Technology Real-time power measurement and debugging Generate application energy profiles including […]

XBAND is a Tiny $10 Bluetooth Low Energy Sensor Module (Crowdfunding)

ZX Tek‘s XBAND is a board about half the size of a micro SD that comes with a Bluetooth LE radio and a 6-axis MPU6500 motion sensor that can be integrated into wearables and IoT applications such as a remote controlled robot with a camera., a wireless smart light-bulb, and iBeacon device and so on. There seems to be two versions of the module XBAND 061-N51822 and XBAND 1018-CY8C4247 with the following specifications: SoC (one or the other) Nordic Semiconductor nRF51822 ARM Cortex M0 MCU @ 16 MHz with 256KB Flash, 16KB RAM, and Bluetooth Low Energy support Cypress PSoC4 BLE core ARM Cortex M0 MCU @ 48 MHz with 128KB flash, 16KB RAM, and Bleutooth Low Energy support Bluetooth – 4.0/4.1 with high gain ceramic chip antenna Sensors – On-board 6-axis MPU6500 motion sensor + an extra configurable sensor (not idea what that is…). Connectors – Board-to-board connectors with […]

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