Schlagwort: Electronic

The Single Board Computer Database

https://hackerboards.com

„With over 450 active entries, Board-DB is the largest online database and comparison tool for single board computers (SBCs), computing modules (SoMs), and development boards.“

Vermutlich ist die Seite mit den über 450 Boards, der erste Punkt an dem man nachsehen kann. Klasse Projekt!

via https://hackaday.com/2022/12/02/hackerboards-making-finding-the-right-single-board-computer-easy/

Netduino

„Software, meet hardware.

Netduino is an open source electronics platform using the .NET Micro Framework.

Featuring a 32-bit microcontroller and a rich development environment.
Suitable for engineers and hobbyists alike.“

http://www.netduino.com/netduino2/

http://www.netduino.com/netduino2/
http://www.netduino.com/netduino2/

http://www.netduino.com/netduino2/specs.htm

processor and memory
  ● STMicro 32-bit microcontroller
  ● Speed: 120MHz, Cortex-M3
  ● Code Storage: 192 KB
  ● RAM: 60 KB
digital i/o features
  ● all 22 digital and analog pins: GPIO
  ● digital pins 0-1: UART 1 RX, TX
  ● digital pins 2-3: UART 2 RX, TX/PWM
  ● digital pins 5-6: PWM, PWM
  ● digital pins 7-8: UART 3 RX, TX
(also works as UART 2 RTS, CTS)
  ● digital pins 9-10: PWM, PWM
  ● digital pins 11-13: PWM/MOSI, MISO, SPCK
  ● digital pin SD/SC: SDA/SCL
(also works as UART 4 RX, TX)

Make a slim watch with ARM Cortex-M3 EFM32

„Hack-a-Gecko project by Anders and Adam 

How to make a very slim watch and keep battery life long? In this Hack-a-Gecko project, they tried to catch two birds with one stone.

The Idea
We thought it would be cool to utilize the extremely low power EFM32 in combination with an extremely low power display to create a wrist watch demo application. And usually, the smaller and thinner something is, the cooler it is. (Admittedly, wrist watches do not necessarily follow this trend… big watches.)

Anyway, we wanted it slim. The starting point was the memory LCD display from Sharp (link). It is truly a Nano ampere display technology. And it is also thin, only 0.75 mm. A watch also needs a battery, cool new technologies exist such as the Thinergy battery, but the voltage of 4.1 V is a bit awkward. We decided to use a standard 3.0V CR1616 cell as it can power the EFM32 and display directly. Thickness of battery + display is 2.35 mm, is it possible to design the electronics as well within this thickness limit…? Challenge accepted!“

http://blog.energymicro.com/2012/12/12/make-a-slim-watch-with-arm-cortex-m3-efm32/

found via http://hackaday.com/2012/12/12/super-slim-wristwatch-build/