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March 26, 2018March 28, 2018 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

WeLoop Hey 3S Sports Smartwatch Review – Part 2: GPS, Running, Cycling, Notifications, and More

As mentioned previously I did not have such good luck with smart wearables so far, with disappointing products often with a short lifetime (a few weeks to a few months, and some design issues here and there like an e-Paper display without backlight, a touchscreen display with poor locking mechanism (so it’s activated while taking a shower), unreliable heart rate monitor, poor waterproofness and so on… My main requirements are always-on display, battery life as long as possible, notification support, good waterproofness to do tasks like taking shower or swim without having to remember to remove the watch, among others less important requirements. I mostly gave up on the category for about year, but decided to give it a try when GeekBuying asked me if I was interested in reviewing WeLoop Hey 3S sports smartwatch. Maybe things have improved since then. I’ve already gone through unboxing and initial setup in […]

September 28, 2017 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

2.9″ ESPaper Lite Kit is a $40 ePaper Display Kit with an ESP8266 WiFi Module

Squix (Daniel Eichhorn) has designed a 2.9″ ESPaper Lite Kite is a battery powered kit based on a black and white ePaper module, and ESP-WROOM-02 module based on Espressif Systems ESP8266 WiSoC. 2.9″ ESPaper Lite Kit specifications: Wireless Module – ESP-WROOM-02 WiFi module with Espressif ESP8266 Display – 2.9″ B&W ePaper module with 296×128 pixels resolution connect over SPI to ESP8266 Debugging / Programming – 6-pin serial port header USB – 1x micro USB port for programming Misc – 3 buttons: Reset (wake up from deep sleep); S0 (flash/GPIO0); S1: user button connected to GPIO12; power switch; charging and (firmware) flashing LEDs Power – JST connector for LiPo battery; charging circuit You’ll need a 3.3V USB to TTL debug board for flashing the firmware to the board, and a LiPo battery to power it up. The solution is particularly useful if you want a battery powered display that is infrequently […]

May 9, 2017May 10, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

SHA2017 Conference Badge To Feature ESP32 SoC, e-Paper Display

In most conference, you’ll wear a badge showing your name, job description and company, but with the price of electronics going down, it may be time for a conference badge upgrade. SHA2017 is a non-profit outdoor hacker camp taking place in The Netherlands in 2017 on August 4 – 8, and the organizers are planning to use a special badge comprised of Espressif ESP32 processor, and an e-Paper Display. SHA2017 Badge specifications: Wireless Module – Espressif ESP32 based ESP-WROOM-32 module with WiFi and Bluetooth Display – 2.9″ e-paper display (296×128) Storage – micro SD slot Expansion – 12-pin expansion header with GPIOs, I2C, 3.3V, GND Debugging – micro USB port + USB->TTL chip for programming Misc – Direction keys, select, start, A and B buttons for input; 6x RGB, LEDs; pager motor for notifications Battery – Battery sized to last at least a day Beside your name and company details, […]

March 31, 2017March 31, 2017 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Aconno Bluetooth 4.0 & 5 IoT Development Board Features an nRF52832 or nRF52840 Module, an e-Paper Display, Sensors and More

Bluetooth 5 is the latest iteration of Bluetooth with up to four times the speed and twice the range of Bluetooth 4.0 LE, and so far apart from Puck.js and Nordic Semi nRF52840 devkit, I had not seen many Bluetooth 5 IoT modules or boards. Aconno, a German startup, has designed ACD-52832 Bluetooth 4.0 / Thread / ANT+ IoT development board based on their own nRF52832 module, and equipped with some goodies like a black & white e-Paper display, a joystick, sensors, I/Os, etc… They’ve also launched an updated module with Bluetooth 5 using nFR52840 SoC. I don’t have the full details about the new module, but the nRF52832 module and devkit is interesting to look at, especially features should be similar. Aconno ACD-52832 board specifications: Wireless Module – ACN52832 based on Nordic Semi nRF52832 ARM Cortex-M4 @ 64 MHz SoC with Bluetooth Smart, ANT+, Thread, NFC, and 2.4 GHz […]

December 23, 2016December 23, 2016 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

SonikTech e-Paper Shield Starter Kit Relies on Teensy LC MCU Board

Soniktek Electronics has designed the “e-Paper Shield Starter Kit” featuring Pervasive Displays’ E2215CS062 e-paper screen, and an adapter board to connect it to Teensy LC (Low Cost) board powered by NXP Kinetis L ARM Cortex M0+ microcontroller @ 48 MHz, or other 3.3V MCU boards supporting SPI. Adapter board & display specifications: Supports Pervasive Displays 2.15″ E2215CS062 e-paper screen with 208 x 112 resolution, no backlight required, fully sunlight-readable Communication protocol – SPI @ 3.3V Sensor – On-board thermometer with I2C interface Dimensions – Screen: 48 mm x 26 mm; adapter board fits into Teensy-LC module (36x18mm) The advantages of e-Paper display are that they don’t require power to maintain an image, and they can be read in sunlight, just like actual paper. I can’t remember having seen many – if any – low cost e-Paper development kits so far, and the project is open source hardware with design files and […]

December 1, 2016 by Jean-Luc Aufranc (CNXSoft) - 16 Comments

reMarkable 10.3″ Digital Notepad and e-Reader is Designed to Feel Like Paper

If you like to take notes with pen and paper, but would prefer a digital solution to store your note, there are already some solutions like Boogie Board and Rocketbook, but reMarkable offers much more that the other two with a 10.3″ E-Ink touchscreen display and pressure sensitive pen capable of detecting 2048 levels of pressure sensitivity, it allows to read books as any e-readers, and also write your own notes on a blank piece of “paper” or existing digital documents, drawing sketches, and save & share the results. The whole user experience is supposed to feel as if you were reading and writing on paper. reMarkable tablet specifications: SoC – ARM Cortex A9 processor @ 1 GHz (Likely NXP i.MX6 series processor since they support EPD interfaces) System Memory – 512 MB DDR3L Storage – 8GB internal storage good for around 100,000 pages Display – 10.3″ monochrome digital paper […]

December 3, 2014December 3, 2014 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Yotaphone 2 Smartphone Features an Improved AMOLED + ePaper Dual Display

About two years ago, Yota , a technology company based on Russia, introduced the Yotaphone, an Android smartphone with an innovative dual display solution comprised of a standard color display on the front, and an E-ink display on the back, in order to extend battery life. The idea was interesting, but the phone did not look that great. But with Yotaphone 2, the company upgraded the processor with a Snapdragon 800 processor, a larger 5″ display, and if the back ePaper display looks as crisp and clear in real life as in the picture below, you could have a winner, and copycats will eventually show up. Yotaphone 2 specifications: SoC – Qualcomm Snapdragon 800 quad-core Krait processor @ 2.2 GHz with Adreno System Memory – 2GB RAM Storage – 32GB eMMC Displays Front – 5″ AMOLED touch screen, 1920×1080 resolution,16M colors, 442ppi, with Corning Gorilla glass 3. Rear – 4.7” […]