Inside the ALU of the first ARM microprocessor
IC

Inside the ALU of the first ARM microprocessor

Dave @ daveshacks.blogspot.co.uk takes a look inside the first ARM microprocessor and explains it's design. With that in mind I embarked on my own attempt to reverse-engineer parts of the armv1. Some background knowledge of the processor's architecture is helpful, and googling for...

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UCload new PCB build
Mcu

UCload new PCB build

Sjaak has published a new PCB build, uC controlled dummy load: With no snow outside I finally got around to solder the 3rd PCB. It is the second revision of a microcontroller dummy load. It is loosely based on the arachnidlabs uc:load. It uses the same base ciruit and adds a...

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Texas CC2538 based development board
Mcu

Texas CC2538 based development board

Jelmer Tiete has designed a development board for the TI CC2538, that is available at GitHub: It’s a nice little system-on-chip with an ARM Cortex M3, 2.4 GHz 802.15.4 radio and it runs at 32 MHz. Perfect for all your favorite Internet Of Things (IOT) shenanigans. Contiki supports...

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Galvanic Skin Response System
Mcu

Galvanic Skin Response System

The Galvanic Skin Response (GSR) is a property of the skin to exhibit electrical characteristics. It is also known as Electrodermal Activity (EDA), Electrodermal Response (EDR), Electrodermal Level (EDL), Skin Conductance Activity (SCA), Skin Conductance Response (SCR), and a lot...

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Designing and Building a binary clock
Mcu

Designing and Building a binary clock

Parker Dillmann @ macrofab.com has designed a wrist LED binary clock based on PIC16F527 Microchip mcu. The Macro Watch stemmed from those constraints. I picked the PIC16F527 microcontroller by Microchip to be the core of the watch because it was the cheapest MCU I could find that had...

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Polyphonic FM Synthesizer with STM32F031
Audio

Polyphonic FM Synthesizer with STM32F031

ihsan Kehribar @ blog.kehribar.me has been working on a MIDI capable, polyphonic FM synthesizer using an 32bit ARM Cortex M0 microcontroller and an audio codec. Polyphonic FM Synthesizer with STM32F031 -...

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FT900 – flexible bridge between interfaces
Mcu

FT900 – flexible bridge between interfaces

FT900 is 32bit RISC MCU developed for high speed, interface bridging tasks. FT900 provides a large amount of connectivity options. To name only a few, FT900 can: ● process data from parallel camera input and send them via Ethernet ● transform data from camera to create...

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L293D Motor Controller Tutorial
ArduinoMotor

L293D Motor Controller Tutorial

Sooncheng @ instructables.com shows us how to control a DC motor using the L293D IC and an Arduino: L293D is a chip that enable us to control two motors together with only one Arduino board or other microcontrollers. However, I was having a project that required controlling four DC...

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