All posts in the 'General electronic projects' Category
Posted on 06 Jul 2008
Ginger is a physical computing platform similar to Gainer (which is based on a PSoC chip). You can read digital and analog inputs and set output data, all over USB. Ginger’s web site is documented in Japanese and English,and Readme file in the project is in English. [more]
Posted on 03 Jul 2008
This charger designed by Ajoe on wattflyer.com forum.The circuit based on Scott Henion ’s Lipo Charger.Each charger has output voltage 4.2V. Cascade them to become Charger fit for 2 or 3 cels Lipo pack.The transformed that used here has 3 x 8VAC secondary output.[more]
Posted on 25 Jun 2008
Each encoder channel has a dedicated microcontroller, this feature gives it a high speed encoder tracking ability.It will track at up to 30 KHz ! All four channels are controlled by a main chip. The main chip takes care of calculating values for the LCD display.The main controller uses 32 bit counters so there are no practical limits for it’s use.[more]
Posted on 21 Jun 2008
This Opto Isolator board allows you to pass signals between two circuits without having to connect them electrically. They are great for eliminating noise problems, or to connect circuits that have different voltages.[more]
Posted on 08 May 2008
Alvaro Cassinelli writes:We are developing a wearable and modular device allowing users to perceive and respond to spatial information using haptic cues in an intuitive and unobstrusive way.The system is composed of an array of “optical-hair modules”, each of which senses range information and transduces it as an appropriate vibro-tactile cue on the skin directly beneath it. An analogy for our artificial sensory system in the animal world would be the cellular cilia, insect antennae, as well as the specialized sensory hairs of mammalian whiskers. In the future, this modular interface may cover precise skin regions or be distributed in over the entire body surface and then function as a double-skin with enhanced and tunable sensing capabilities. We speculate that for a particular category of tasks (such as clear path finding and collision avoidance), the efficiency of this type of sensory transduction may be greater than what can be expected from more classical vision-to-tactile substitution systems. Among the targeted applications of this interface are visual prosthetics for the blind, augmentation of spatial awareness in hazardous working environments, as well as enhanced obstacle awareness for car drivers (in this case the extended-skin sensors may cover the surface of the car).[more]
