A lot of cool modules and sensors…

 Circuits, Microcontrollers, Microprocessors, My projects, Other  Comments Off on A lot of cool modules and sensors…
May 212017
 

I am buying electronic stuff from AliExpress – due to the ******* custom policy of EU it is a much cheaper than buying from Adafruit, Sparkfun etc. Unfortunatelly. There is a lot of total crap, but also a lot of great stuff too. I am diving into AliExpress three times a week, and I found many pieces “I really have to build”. So I decided to share these tips with you and made a new web called Alitronik.

There are three tips per day at Alitronik, and each sunday is “a Funday” – a day for tips with something in common. For example – the last one is dedicated to solar power, energy metering, weather stations and lasers. Previous week was in the sign of Raspberry Pi cases, tools, robots and construction of 8085-based mini PC.

From the recent post I want to mention e.g. 37 sensors kit, CC-A80 Cubieboard PC, Speech Recognition Module, LoRa Shield for Arduino, NodeMCU-32S or SMD Tweezer and multimeter tool.

So – bookmark Alitronik.com, read Alitronik RSS, follow @alitronik_tips, subscribe weekly digest or submit your own tips.

Aug 302014
 

A computer running BASIC, generating composite video and reading PS/2 keyboard input using a single ATmega microcontroller. A computer running the TinyBASIC programming language on an ATmega 1284P microcontroller as well as generating composite video signals and reading PS/2 keyboard input. The computer is easy to assemble at home as all components are through-hole. You can buy ready made PCB. System features include:

  • 8bit ATmega microcontroller running at 16MHz (ATmega 1284P).
  • Over 7KB of memory available for creating BASIC programs.
  • Header for external EEPROM ‘cards’ which allow full size programs to be saved (using a 25LC640 EEPROM IC); 4KB internal EEPROM available within the microcontroller.
  • USBasp programming header allowing easy programming of the computer once assembled.
  • Many GPIO pins for connecting to components and other circuits.
Aug 292014
 

… is not a car, but ARM “Bare Metal Widget”. It features:

  • NXP LPC1114FDH28 32-bit Cortex-M0 microcontroller
  • 70 x 43mm footprint,
  • lithium polymer battery and USB power selection,
  • a lithium polymer battery charger,
  • a 2-megabyte Flash memory,
  • a basic user interface,
  • a FTDI-cable compatible UART header,
  • JTAG-SWD,
  • 16 I/O for connectivity.

The arm-bmw is open hardware (CC-BY-4.0 licensed) and open source (MIT licensed).

Jul 162014
 

It looks like CP/M on ATmega88 – and it really is! Take your Mega48, 88 or 168, connect SD card and RAM, and voila! Really simple, but functional. Someone care to rework it for an Arduino? 🙂

Jun 052014
 

AVR-CDC is low speed USB CDC (Communication Device Class) soft device, suitable for “a poor man’s FTDI replacement”. Its firmware is suitable even for ATtiny45. It can handle 1200-4800 Baud using internal oscillator on ATtiny45, but with ATtiny2313 or ATmegas can handle up to 38k.

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