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

BLE Micro is a Tiny, Coin-Cell Powered Bluetooth 4.0 Development Board

DFRobot Bluno is a Bluetooth 4.0 LE development board following Arduino UNO form factor, and powered by TI CC2540 chipset. The board sells for $24.90 on their online store, and the company provides firmware and mobile app source code, but if you ever wanted a similar solution in a much smaller form factor, and powered by a coin cell battery, the company has now launched BLE Micro board. BLE Micro board specifications: Bluetooth Chip – Texas Instruments CC2540 8051 MCU with USB, Bluetooth 4.0 LE connectivity Wireless Connectivity Frequency: 2.4GHz Transfer rate: ≤1Mbps Modulation: GFSK, Bluetooth low power, V4.0 Sensitivity: -93dB Transmission distance – 30m in free space USB – 1x micro USB port Expansion – 21 through holes with reset, power signals, UART, and GPIOs. Input Voltage: +3.3 DC Power Consumption – Working: 10.6mA average, ready mode:8.7mA Temperature Range – -10 ℃ ~ +65 ℃ Dimensions – 49mm x […]

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 4, 2018 by Jean-Luc Aufranc (CNXSoft) - No Comments

BOSON Kits Feature LEGO Compatible Building Blocks for STEM Education

Last year, DFRobot successfully introduced BOSON Kit “Powerful Building Blocks For LEGO STEM”via Kickstarter, and I’ve just noticed the company is now selling two BOSON Kits on their website: BOSON Science Kit for $149 BOSON Inventor Kit for $249 The kits are plug and pay and do not require coding, nor soldering. The modules come with built-in magnets, or they can be attached with screws, Velcro or to LEGO parts. BOSON modules are based on Intel Curie BLE modules, but those are being phased out, so you may want to inquire DFRobot if long term availability / appropriate stock is a concern. BOSON Science Kit As its name gives away, the kit is a set of exploration tool for aspiring young scientist with the following items: 8 scientific sensors for physics, chemistry and biology: Light sensor Humidity sensor Soil moisture sensor Temperature sensor Waterproof temperature sensor pH sensor (That’s the […]

February 9, 2018July 4, 2018 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

Raspberry Pi 3 Sold for $29.95 on DFRobot (Promo)

As I browsed various sites checking out new arrivals and potential promotion, I found out DFRobot has now a promotion for the Raspberry Pi 3 Model B board for $29.95 apparently taking place between the 8th and 10th of each month (not only February). I added it to my cart to check out shipping to my address, and unless you can pick it up to their office, shipping adds $6, for a total of $35.95 shipped. Whether that is worth it depends where on your locale price and custom regulations. DFRobot does offer free (DHL) shipping for order over $150, but you can’t just buy 5 Raspberry Pi 3 boards at the discounted price, since the special offer apply to “one only one piece of Pi 3”, so you’d have to purchase something else from their website if you don’t want to pay for shipping. Nevertheless, even if you have […]

December 8, 2017July 4, 2018 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

LattePanda Alpha/Delta Kaby Lake & Gemini Lake Development Boards Support Windows 10 Pro or Linux (Crowdfunding)

LattePanda development board based on Intel Atom x5-Z8300 “Cherry Trail” processor was launched nearly exactly two years ago on Kickstarter. The board also included an Atmel MCU for Arduino compatibility, and contrary to most development boards on the market, focused on Windows 10 support instead of Linux. The crowdfunding campaign was very successful having raised over 440,000 GBP from around 4,000 backers, and now you an still buy the board and accessories on DF Robot or Amazon. The company is now back with not only one, but two new LattePanda “hackable computers”, namely LattePanda Alpha powered by an Intel Core m3-7Y30 dual core “Kaby Lake” processor, and LattePanda Delta based on Intel Celeron N4100 quad core Gemini Lake processor. This time beside offering Windows 10 Pro, they are also committed to support Linux. Beside processor, memory capacity, and storage options, LattePanda Alpha/Delta boards share most of the same specifications: SoC […]

September 23, 2017July 4, 2018 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Flexible Silicone Case for LattePanda Board

I’ve seen many different kind of cases for development board from the simple acrylic enclosures, cheap plastic case, and more expansive wooden or metal cases. However so far I don’t think I had ever come across silicone cases, but while browsing new arrivals on DFRobot, I discovered a silicone case for LattePanda board. The case will fit closely all around the board, and have opening for ports and headers that are clearly marked including I/O pins. It takes a little less space than other type of cases, and should absorb shocks better in case of fall. At first look, it looks like it might prevent good cooling, as it does not appears suitable for the heatsinks kit sold for the board, but actually the bottom cover offers space for the fan. Other specifications listed for the case: Non-toxic and non-smell silicone material (food grade) Cold & heat fatigue resisting Static […]