Cheap RF - a low cost open source 802.15.4 platform edit / delete

"The CC2533 sends and receives 802.15.4 packets at 2.4GHz, there's hardware support for AES-128 encryption, an 8051 CPU and the usual collection of SoC devices uarts/spi/i2c/gpios/timers etc." With SDCC-based toolchain and libraries.

to electronics embedded low-power microcontroller radio ... on 22 January 2015

Teensy Z80 – Part 1 – Intro, Memory, Serial I/O and Display | "Domipheus Labs" edit / delete

Building a Z80 computer where everything except the Z80 is in a modern microcontroller. Cute! (If not terribly high-performance.)

to avr electronics homebrew microcontroller teensy z80 ... on 18 January 2015

Ringing in 2015 with 40 Linux-friendly hacker SBCs ·  LinuxGizmos.com edit / delete

The pcDuino v3 nano is looking especially interesting -- Allwinner A20 CPU with gigabit Ethernet, so ideal for a router.

to arm embedded linux microcontroller sbc ... on 18 January 2015

Home · esp8266/esp8266-wiki Wiki edit / delete

The ESP8266 is a very cheap microcontroller-onna-board with proper wireless networking and a TCP/IP stack. Most people seem to hook it up to another microcontroller, but you can run code on the ESP8266 itself; this site has cross-development tools and documentation. (Although it's only IPv4 at the moment, so it wouldn't be very useful for sensor apps on my home network as-is.)

to cross embedded esp8266 microcontroller networking programming wireless ... on 18 January 2015

KeySweeper edit / delete

"KeySweeper is a stealthy Arduino-based device, camouflaged as a functioning USB wall charger, that wirelessly and passively sniffs, decrypts, logs and reports back (over GSM) all keystrokes from any Microsoft wireless keyboard in the vicinity." So that's three reasons why I won't be buying a Microsoft wireless keyboard, then.

to arduino keyboard keylogger microcontroller security wireless ... on 18 January 2015

Hardware and Firmware Issues in Using Ultra-Low Power MCUs edit / delete

"This report describes the hardware and firmware issues one must consider when designing very low-power coin-cell products." I imagine there are other concerns as well, but lots of interesting stuff here.

to battery electronics low-power microcontroller power-management ... on 18 January 2015

tmk/tmk_keyboard · GitHub edit / delete

Open-source AVR firmware for keyboards. I keep meaning to convert the Heath keyboard that I've got sitting around...

to avr electronics firmware input keyboard microcontroller ps2 software usb ... on 25 August 2014

The Final Key - Hardware password manager with encryption edit / delete

A little USB device that pretends to be a serial port and a keyboard. Select an account using a terminal, push a button, and it types the password for it.

to electronics microcontroller password security usb ... on 24 August 2014

Capacitance Meter Mk II | PIC Tutorials edit / delete

Using an Arduino and no external components. Cute!

to arduino avr capacitance electronics meter microcontroller test-equipment ... on 27 April 2014

Laughton Electronics | does what other contractors can't or won't edit / delete

Some great reverse engineering, and a couple of interesting homebrew CPU designs: a 14500-ish 1-bit CPU using an EPROM, and a 24-bit extension to the 6502.

to 6502 cpu electronics homebrew microcontroller microprocessor repair reverse-engineering ... on 27 April 2014

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