Monthly Archives: May 2014
Scientists have long worked to harness the unusual properties of graphene, a two-dimensional sheet of carbon atoms. However, graphene lacks a single critical characteristic that would make it even more useful: a property known as a bandgap, which is essential for designing devices like computer chips and solar cells.
As such, researchers at MIT and Harvard University are currently experimenting with a two-dimensional material whose properties are very similar to graphene, albeit with certain distinct advantages – including the fact that this material naturally boasts a usable bandgap.
Photo Credit: MIT
The research, just published online in the Journal of the American Chemical Society, was conducted by MIT assistant professor of chemistry Mircea Dincă and 7 co-authors.
The new material, essentially a combination of nickel and an organic compound known as HITP, also has the advantage of self-assembly. Indeed, its constituents naturally assemble themselves, a “bottom-up” approach that could lend itself to easier…
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“It’s fun to build and easy to start programming it to draw shapes. The chassis is laser cut and snaps together quite easily. Mirobot is robust, but also quite simple. Kids can understand how it works and what it does,” Pirt explained in a recent Kickstarter post.
“There’s no slick plastic casing because I think children are more interested in things when they can see what’s going on inside. With Mirobot, the mechanisms are all easily visible – it’s designed to remove the mystery and help understanding.”
Aside from the ATmega328 MCU, key tech specs include:
- WiFi module that also acts as an access point
- Battery powered with AA batteries
- Two stepper motors for control
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Meet A13-SOM the smallest Allwinner SOM which cost only EUR 18 in single quantity and run with 1Ghz Cortex-A8 processor
A13-SOM is very small only 61 x 33 mm module which contains everything to run Linux:
- A13 Cortex-A8 processor running at 1Ghz
- 256 or 512MB of DDR3 memory
- micro SD-card
- power supply
- console UART
- A13 GPIO ports on connectors
The module needs single 3.3V / 150mA power supply to run Debian Linux.
All free ports of A13 are available on 4 connectors with 0.05″ step.
A13-SOM-256MB cost EUR 18 for single quantity and goes down to EUR 12 for 1000 pcs.
A13-SOM-512MB cost EUR 21 for single quantity and goes down to EUR 14 for 1000 pcs
A13-SOM-WIFI is shield to connect to A13-SOM and have these features: RTL8188CU wifi module, USB-OTG, optional 4GB NAND, optional 8MB SPI Flash, LCD connector. The LCD connector supports all our parallel RGB LCDs like A13-LCD4.3″TS, A13-LCD7″TS, A13-LCD10″TS.
A13-SOM-WIFI cost EUR 10 in single quantity, A13-SOM-WIFI-4GB cost EUR 17 in single…
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Οπως δήλωσε το ευρώ είναι υπερβολικά ισχυρό και
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