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Samsung has officially introduced the smartphone Galaxy A3 and A5, made ​​as stressed developers in the "full metal Unibody-body." New focus on young people and will go on sale in November. The cost of the devices has not yet been disclosed. Samsung Galaxy A5 is equipped with a 5-inch Super AMOLED display with a resolution of 1280 × 720 pixels, 4-core processor with 1.2 GHz, 13-megapixel primary and a 5-megapixel front camera, 2 GB of RAM and 16 GB of internal memory, microSD slot . The dimensions of the device are 139 × 70 × 6,7 mm, weight - 123 grams. The model runs Android 4.4 and is equipped with a battery capacity of 2300 mAh. The battery life, the Samsung Galaxy A5 did not specify. Galaxy A3 differs from the older "colleagues" reduced to 4.5-inch display with a resolution of 960 × 540 pixels, 8-megapixel main camera and half the amount of RAM. Sourced By : Makemoneyfreewithus

A very simple metal detector electronic project circuit can be designed using the CS209A integrated circuit manufactured by Cherry Semiconductor.The CS209A integrated circuit is a bipolar monolithic integrated circuit for use in metal detection proximity sensing applications.The CS209A metal detector contains two on-chip current regulators, oscillator and low-level feedback circuitry, peak detection/demodulation circuit, a comparator and two complementary output stages.The oscillator, along with an external LC network, provides controlled oscillations where amplitude is highly dependent on the Q of the LC tank. Metal Detector Schematic Circuit Diagram The detector, is a single 100uH coil. The IC has an integral oscillator the choke forms part of an external LC circuit, it's inductance being changed by the proximity of metal objects. It is the change in oscillation that is amplified and demodulated. Led 1 will light and the buzzer will sound when the inductance it's changed. Set...