Low power magnetic hold and release mechanism

This video by Shane Ormonde discusses the low power magnetic hold and release mechanism: With the inductor and magnet combined, ferrous metal objects can be held without any power indefinitely. To release the metal object the magnetic field holding it up needs to be temporarily cancelled out. This happens by pulsing current through the inductor which generates […]

MSP430 powerscope, a low power aid

MSP430 powerscope, a low power aid: MechG developed a breadboard scope meter to help him identity and lower power consumption in his projects. The Power Scope is a meter intended for use on a breadboard to aid in the development of battery-operated devices. It provides dedicated monitoring at the power source so you can quickly […]

App note: Low power design guide for PICs

Here is a design guide from Microchip describing low power design with PIC microcontrollers. The document provides theory behind some low power designs, and examples on how to implement them in your projects. Low-power applications represent a significant portion of the future market for embedded systems. Every year, more designers are required to make designs […]

App note: Lowering power consumption on PIC microcontrollers

Microchip presents several of techniques for lowering the power consumption of their PIC microcontrollers and dsPIC digital signal processors. Many things can apply to any low-power project. This document seeks to simplify the transition to low-power applications by providing a  single location for the foundations of low-power design for embedded systems. The  examples discussed in […]

TI’s Wolverine is an even lower power MSP430

Texas Instruments claims to have concocted an even lower power MSP430. The MSP430 Wolverine series uCs consume 100uA per MHz when active, and 360nA in standby. TI claim this is 50% less power consumption than any other micro. You can download the whitepaper and check out all the specs. Tasty samples available around June 2012. […]

7400 competition entry: Pen holder

Here is an interesting, but unusual entry: Pen holder I will admit that this may be an unusual project to enter, however as far as I can tell, it does not actually break any rules. It is a functional device in which the circuit (board) is mostly 7400 logic chips. It appears that it will run indefinitely without needing […]

TI’s ultra-low-power MSP430FR57xx FRAM microcontrollers

TI has has announced their MSP430FR57xx ultra-low-power ferroelectric random access memory (FRAM) line of 16-bit microcontrollers. Their stated benefits are the ability to write data more than 100 times faster with power consumption of 250 times less than flash- and EEPROM-based microcontrollers. They are also code compatible with other MSP platforms. The on-chip FRAM allows […]