wearables

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Fitbit Introduces Charge 2 and Flex 2 Fitness Trackers

Fitbit Introduces Charge 2 and Flex 2 Fitness Trackers

My first activity tracker, Vidonn X5, worked reasonably well and lasted for over a year, but the subsequent models I tried were all mostly disasters, especially as they added some features like a heart rate monitor that did not work reliably, and worse, their lifetime was poor, lasting only a few days to a few weeks before stopping working. My Xiaomi Mi Band 2 died last week-end, two days after a firmware update which decreased battery life to less than a day, and now refuses to charge. While the HRM was utterly useless, it did count steps fairly accurately, and battery life was good. Sadly, it would only last about two months. So at this stage, it might be worth spending more for a fitness tracker, and Fitbit has unveiled two new models with Charge 2 and Flex 2. Fitbit Charge 2 includes a 1.5″ OLED touchscreen display, and an […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on TW68 Smart Bracelet Measures Blood Pressure and Heart Rate for $22 and Up

TW68 Smart Bracelet Measures Blood Pressure and Heart Rate for $22 and Up

Some people may need to frequently measure their blood pressure because of their health condition, but it’s often a cumbersome experience, so they may get lazy, and not do it as often as needed. TW68 smart bracelet should make this easy, as it’s your typical fitness tracker with an heart rate monitor, but adding the capability to also measure blood pressure. It’s also very cheap, and I first found it on DealExtreme where it sells for just $24. TW68 specifications: MCU – Nordic Semi NRF51822 ARM Cortex M0 micro-controller with 2.4 GHz radio Data Storage – 7 days detailed data, 23 days total data Connectivity – Bluetooth 4.0 LE Display – 0.49″ OLED display Sensors –  PixArt-PAH8001EI blood pressure sensor; 6-axis Invensense-MPU6500 accelerometer and gyroscope Function Health tracker: Blood pressure measurement, Heart rate monitor, Pedometer, Sleep tracker Other functions: Call/Message notification, Fall reminder, Social sharing, Time, Alarm clock Misc – […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on PSF-A85 is a $2 ESP8285 WiFi Board for IoT and Wearables

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, […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Nordic Semiconductor nRF52832 Cortex-M4 ANT & Bluetooth LE SoC Gets Even Tinier

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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Espressif ESP8285 is just like ESP8266 but with 1MB built-in Flash, and Designed for Wearables

Espressif ESP8285 is just like ESP8266 but with 1MB built-in Flash, and Designed for Wearables

Espressif announced ESP8285 WiFi SoC was entering production last March. The new processor is based on ESP8266, but the company added 1MB built-in flash to make the solution smaller, and more suitable to wearables such as smartwatches and activity trackers. ESP8285 features a Tensilica L106 32-bit MCU and another ultra-low-power 16-bit RISC core, as well as 802.11 b/g/n/d/e/i/k/r WiFi connectivity. AI Thinker has already produced a tiny module based on the solution, called ESP-8285, and another person has developed an ESP8285 development board sold on Tindie for $24.95, and with some code sample (Arduino sketches) on Github. You’ll also find some more technical information on a Devacron blog post, or inside the datasheet on Espressif website. Via Hackaday Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on Energympro EP-SH09 Bluetooth LE Fitness Tracker Features AMS AS7000 Biosensor

Energympro EP-SH09 Bluetooth LE Fitness Tracker Features AMS AS7000 Biosensor

I wrote about AMS AS7000 biosensor designed for heart rate monitors last fall, and one of my regular reader noticed the sensor, made his company evaluate it, and since the results were pretty good, designed a product with it. And here I am with a sample of Energympro EP-SH09 fitness tracker with an OLED display, HRM based on AS7000 sensor, and IP67 ingress protection rating. Some of Energympro EP-SH09 technical specifications: MCU – Texas Instruments CC2640 ARM Cortex-M3 48 MHz Display – 0.86″ OLED display, 96×32 resolution Connectivity – Bluetooth 4.0 LE Input – Touch area at the bottom of the display Sensors – AMS AS7000 biosensor for HRM, motion sensors Battery – 45 mAh LiPo battery which looks good for 4 to 5 days. Dimensions – 40 x 18 x 12.9 mm Weight – 6 grams Ingress Protection Rating – IP67 The device can pair with smartphone using Smart […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 7 Comments on Shenzhen Alpha M009 Smartwatch is Powered by Mediatek MT2503 SoC with Integrated Bluetooth, GSM Modem, and GPS

Shenzhen Alpha M009 Smartwatch is Powered by Mediatek MT2503 SoC with Integrated Bluetooth, GSM Modem, and GPS

Mediatek MT2502 “Aster” SoC for wearables and IoT was released in 2014 with an ARM7 MCU, built-in Bluetooth, PMIC, and GSM/GPRS modem, and support for external WiFi and GPS chips. The upcoming MT2503 integrates functionality even further as GPS is now embedded inside the SoC, and Shenzhen Alpha Telecom Technology demonstrated their  M009 smartwatch based on the latest Mediatek SoC at CES Asia 2016 in Shanghai. M009 smartwatch specifications: SoC – Mediatek MT2503 ARM7 processor with GSM/GPRS modem, Bluetooth 3.0 + EDR 2.1, GPS (MT3333), PMIC Display – 1.22″ or 1.3″ 240×240 resolution TFT display Cellular Connectivity – SIM card Sensors – HRM, pressure sensor Misc – 2x buttons Dimensions – 36 x 32 x 11 mm There will be two version of the processor MT2503A and MT2503D with the former supporting external serial flash. If you’d like to integrate a ready to use module in your design, ATS Link provides […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on $49 STEVAL-WESU1 Wearable Sensor Unit Reference Design is Based on STMicro STM32 MCU

$49 STEVAL-WESU1 Wearable Sensor Unit Reference Design is Based on STMicro STM32 MCU

STMicroelectronics STEVEL-WESU1 is a wearable open source hardware reference design and development kit comprised of a board with STM32L1 ARM Cortex-M3 micro-controller, BlueNRG-MS Bluetooth LE chip, and sensors, a battery, and a watch band. STMicro “WESU” specifications and features: MCU – STMicro STM32L151VEY6 32-bit ARM Cortex-M3 MCU @ 32 KHz to 32 MHz, 512KB flash, 80 KB SRAM Connectivity – Bluetooth 4.0 LE via BlueNRG-MS BLE network processor Sensors – 3D accelerometer + 3D gyroscope (LSM6DS3), 3-axis magnetometer (LIS3MDL),  MEMS pressure sensor (LPS25HB) USB – 1x micro USB port for recharging Debugging – SWD connector for debugging and programming capability Power 100 mAh Li-Ion battery included, UN38.3 tested and certified STNS01 Li-Ion linear battery charger STC3115 Fuel gauge IC Watch strap with plastic housing included Certifications –  FCC (FCC ID: S9N-WESU1), IC (IC: 8976C-WESU1), RoHS The kit can be controlled by ST WeSU app for Android and iOS, and developed using BlueST […]

UP 7000 x86 SBC