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Circuit diagram is a simple parking sensors, sensing the distance between where the rear bumper of the car and obstacles behind the car. In the circuit diagram there are two parts to the scheme and the scheme for the transmitter receiver. Distance can be understood from a combination of LEDs (D5 to D7) glowing. At 25cm D7 akan beam, 20 cm in e6 & D7 akan shining and 5cm in the D7, D5 and e6 akan glow. When the constraints that exceed 25 cm above none of the LEDs will glow. This circuit is based on the LM324 as a core system. following is a circuit diagram for the image transmitter:   There are pictures on the IC1 NE555 is the cable as astable multivibrator increase IR diode D1 to emit IR pulses. That operates at a frequency transmitter must be set 120Hz.The IR pulses transmitted by D1 will be reflected on the obstacles and received by D2 (infra red). You can also use the photo diode. The received signal amplified by akan IC2a.The peak amplified signal is detected by diode D4 an...

This Line Following Robot sensor or surface scanner for robots is a very simple, stamp-sized, short range (5-10mm) Infrared proximity detector wired around a standard reflective opto-sensor CNY70(IC1). In some disciplines, a line following robot or an electronic toy vehicle go along a pre drawn black line on a white surface. In such devices, a surface scanner, pointed at the surface is used to align the right track. IC1 contains an infrared LED and a photo transistor. The LED emit invisible infrared light on the track and the photo transistor works as a receiver. Usually, black colored surface reflects less light than white surface and more current will flow through the photo transistor when it is above a white surface. When a reflection is detected (IR light falls on the photo transistor) a current flows through R2 to ground which generates a voltage drop at the base of T1 to make it conduct. As a result, transistor T2 start conducting and the visual indicator LED(D1) lights up. Cap...

DC12V , 4.4watt/feet, 18leds/feet, 16.4feet/reel. super bright leds, D3 touch controller link: http://www.superlightingled.com/d34a3ch-max-12a-dc1224v-d-series-rgb-touch-panel-highend-controller-for-rgb-color-change-multic-colour-led-strips-lighting-warranty-5-years-p-422.html RGB led strip lights link: http://www.superlightingled.com/rgb-flexible-led-strip-lights-c-3_26.html 100watt power supply link:  http://www.superlightingled.com/100w83a-dc12v-hulled-led-enclosed-switching-power-supply-with-builtin-pfc-p-210.html

The mbed micro-controller 40 pin was developed for prototyping the mbed compiler lets you write programs in C + +, and then compile and download them to run on the micro-controller. The mbed compiler is a Web App in the cloud, you do not have to install or configure anything to wear. Compatible with any operating system and any place, the software is online and ready to be used, you will only need a computer or netbook with an Internet connection. Super mbed Microcontroller Prototyping Super mbed Microcontroller Prototyping

The circuit diagram shows a low-cost 3-input video MUX cable driver. In this circuit, the amplifier is loaded by the sum of RF and RG of each disabled amplifier. Resistor values have been chosen to keep the total back termination at 75 Ω while maintaining a gain of 1 at the 75-Ω load. The switching time between any two channels is approximately 32 ns when both enable pins are driven. When designing a circuit board for this cable driver, care should be taken to minimize trace lengths at the inverting input. The ground plane should also be pulled away from RF and RG on both sides of the board to minimize stray capacitance. Current consumption of the cable driver is a modest 8mA.

This instructable shows how to wire up one or more LEDs in a in a basic and clear way. Never done any work before with LEDs and don’t know how to use them? If you have wired up LEDs before, this explanation might seem overly simplistic. Consider yourself warned. [ ]

Simple Solar charger circuit to take advantage of sunlight shining on the earth can continue to be utilized to serve as a power source so that we can at least save on electricity prices continuing to rise, below is one of a series of simple power plant can be created and used to fill your motorcycle battery or for emergency lights . The circuit scheme of Solar Power Generation Sunlight is received by the solar panels are then processed into electricity, but electricity generated from each panel is still too small where the 8 Cell Panel arranged in series only mrnghasilkan voltage of approximately 4 volts with a current 200 mA. nah therefore required an electronic circuit to increase the voltage and current enough to be used as a Battery Charger . Electronic Rainmaking act as a series of DC to DC Inverter (DC to DC Inverter), which was built by two pieces of Capacitor, Resistor 1, a transistor , a diode, and a coil which is the point of the creation of this series. The circuit ...

This series is made to indicate that the amplifier has been given the maximum signal, the amplifier has the ability to be at its peak. if the lights do not mean the signal-plus volume.the way it works is the LED lights will light up when given a signal that more than 1.8 volts, the average amplifier will be saturated (maximum) if the signal was given more than this.  The circuit is very simple to the point that we forget that making a series of peak signal can in this way. circuit is mounted on the output tone control IC, master mixer output, or input power amplifier. This series does not impose on other circuits.survived the experiment!

Want to comfortably enjoy your favorite coffee beside your computer? Take a look at the cookie shaped USB mug warmer, it may be able to catch your eyes. This is an interesting and practical USB mug warmer that measures 4 inches in length and 1 inch in width. As we can see from the images, the USB mug warmer is shaped as a chocolate sandwich cookie, and features delicious details and colors. Of course, you can put it into your mouths, but using integrated USB cable you can connect the cookie shaped USB cup warmer to your computer in order to keep your favorite beverage piping hot – up to 140 degrees. Apart from that, the mug warmer is compatible with all Mac and PCs. The cookie shaped USB mug warmer is priced at $14 USD. If you’re interested, jump to Urban Outfitters for more details.

Many enthusiasts will be using their PCs as data loggers, controllers or as web servers. ln these cases it is important that  the machine is kept powered up for as great a fraction of the time as possible, even if there has been a power cut or if the power button is inadvertently pressed by another member of the household. Today's operating systems offer a range  of automation options and it is perfectly possible to arrange things so that the computer starts itself up automatically. Circuit diagram : Always on for PCs Circuit Diagram The 'always on'circuit shown here automatically restarts an ATX PC in the above situations. There are just two components: a Schottky diode connecting the power but-ton pin on the motherboard to the +5 V line on the power supply, and a capacitor from the power  button pin to ground. The  capacitor  is a 68  pF tantalum type rated at 6.3 V, and the diode is a type SB 120, rated at 20 V and 1 A. The total component cost is in the sub-one-bee...

BH1417 IC The circuit shown here is of a good Stereo FM transmitter that can transmit high quality signals up to a range of 70 feet. The circuit is based on BH1417 PLL stereo transmitter IC from Rhom semiconductors. The IC has separate audio processing sections for the left and right channels, pre emphasis circuit for improving signal to noise ratio, crystal control circuitry for accurate frequency locking, multiplex circuit for making sum ( left plus right) and difference ( left minus right) {see this article for better understanding – Stereo decoder circuit} etc. Another important feature of this IC is that the transmission frequency can be set using a 4 channel DIP switch. The IC can be powered from anything between 4 to 6V DC and has an output power around 20mW. At full output power the circuit consumes only 20mA and has a channel separation of 40dB.There are 14 possible preset transmission frequencies, starting from 88.7MHz and incrementing in steps of 0.2MHz that can be selected ...

The circuit was designed to provide an adjustment with a power supply that is symmetrically designed while providing a voltage range of 1.25V to 30V at 1A current. Terminology LM317 – an adjustable 3-terminal positive voltage regulator capable of supplying in excess of 1.5A over an output voltage range of 1.2V to 37V and requires only two external resistors to set the output voltage due to its internal current limiting, thermal shutdown and safe area compensation, making it essentially blow-out proof LM337 – an adjustable 3-terminal positive voltage regulator capable of supplying in excess of 5A used as battery chargers, constant current regulators, and adjustable power supplies due to its features such as protected output from short circuit, product enhancement tested, current limit constant with temperature, guaranteed thermal regulation, adjustable output down to 1.2V, guaranteed 5A, and guaranteed 7A peak output current Circuit Explanation The circuit will serve as a voltage conv...

Description. Here is a simple circuit based on two transistors that can be used to control the speed of a 12 V DC fan depending on the temperature.A thermistor (R1) is used to sense the temperature. When the temperature increases the base current of Q1 (BC 547) increases which in turn decreases the collector voltage of the same transistor. Since the collector of Q1 is coupled to the base of Q2 (BD 140), the decrease in collector voltage of Q1 forward biases the Q2 more and so do the speed of the motor. Also, the brightness of the LED will be proportional to the speed of the motor. Circuit diagram with Parts list. Notes. The R1 can be a 15K @ 20°C ,N.T.C  thermistor. The M1 can be a 12V,700mA fan motor. The capacitor C1 must be rated 25V. The circuit can be powered from a 12V PP3 battery or 12V DC power supply. Assemble the circuit on a good quality PCB or common board.

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...

1960 Model Transformer-less [Barterer Type] Radio - RCA Victor - Schematic Circuit Diagram

In the last blog post, we lacquered the neck on our vintage Hofner Colorama II guitar . Today we will paint the body. Before painting, we do a last check for anything we may have missed, like scrapes or gouges in the wood. This leads us to discover that the raw plug/screw anchor that someone had inserted to hold on the rear strap button, and which we were just going to leave, is, in fact, just half a raw plug. So, out it comes: A new hole is drilled: A wooden plug is cut: Glued in: And filed/sanded flat: Finally, we drill a new strap button hole: Et voilà. Also, since we're at it, let's drill a hole from the control cavity through to the tremolo area, so that we can earth (ground) the tremolo unit when we put this thing back together: Now on with the show. A quick mounting system needs to be fabricated, so we cut a piece of wood that can be attached to the neck pocket. We drill a hole in it too, so that we can hang it up. We’ll also put a screw in the rear strap button hole t...

Warning! The circuit is connected to 220Vac mains, then some parts in the circuit board are subjected to lethal potential!. Avoid touching the circuit when plugged and enclose it in a plastic box. Powered by two AA NI-CD batteries Four switchable options Circuit diagram       Parts: R1 220K 1/4W Resistor R2 470R 1/2W Resistor R3 390R 1/4W Resistor R4 1K5 1/4W Resistor R5 1R 1/4W Resistor R6 10K 1/4W Resistor R7 330K 1/4W Resistor R8 470R 1/4W Resistor R9 100R 1/4W Resistor C1 330nF 400V Polyester Capacitor C2 10µF 63V Electrolytic Capacitor C3 100nF 63V Polyester Capacitor C4 10nF 63V Polyester Capacitor D1-D5 1N4007 1000V 1A Diodes D6 LED Green (any shape) D7 1N4148 75V 150mA Diode Q1,Q3,Q4 BC547 45V 100mA NPN Transistors Q2,Q5 BC327 45V 800mA PNP Transistors SW1,SW2 SPST Switches SW3 SPDT Switch LP1 2.2V or 2.5V 250-300mA Torch Lamp SPKR 8 Ohm Loudspeaker B1 2.5V Battery (two AA NI-CD rechargeable cells wired in series) PL1 Male Mains plug Device purpose: This circuit...

This circuit operate with IC AN7156N . You just can use this IC , because hav'nt similarity it. In this Circuit have 2 input IN R and IN L and have Output R and L . Voltage supply require 15 V , minimum voltage 9 V and maximum voltage 24V . And the voltage must DC voltage , and better the DC voltage filtering . Maximum Output for 1 speaker 25 W , so this circuit have maximum output 2 X 25 W with minimum impedance 4 ohm. See this circuit schematic below : Click image to view enlarge

At the ongoing IFA exhibition in Berlin, Acer introduced a smartphone for gamers Predator 6, reports The Verge. According to company representatives, the smartphone is equipped with ultraproizvoditelnoy filling and corresponds to the aggressive line gaming design Predator. The smartphone is equipped with 10-core processor manufacturing MediaTek and 4 GB of RAM. Surprisingly, the resolution of the display with a diagonal of 6 inches is only 1280 × 720 pixels, which is not in the flagship. Camera Module - 21 Mn. The main body of the device was a place just for the four speakers. The smartphone supports vibration feedback, both gamepad consoles. Acer promises that the smartphone will pull any games that the user installs it. About the price of the device and the date of his entering the market has not reported.

The circuit in the diagram was originally designed to monitor an oscillator, but can also be used as a general-purpose level indicator for a.c. signals. It is based on a quadruple IC containing four NAND gates. Only three of the gates are used, making the fourth free for other purposes. All the gates have a Schmitt trigger input. When a 5 V supply is used, the Type 74HC132 is recommended; for higher voltage, a Type 4093. Note, however, that these two ICs have different pinouts. In the diagram, the differing pins of a 4093 are shown in brackets. The signal to be monitored is applied to the input of the first gate via capacitor C1. Resistor R2, in conjunction with the protection diode in the IC, guards the input to high voltages. In the absence of a signal, resistor R1 holds the input high so that the output of the gate is low. When a signal of sufficient strength is received, the input of the gate goes low during the negative half cycle of the signal, so that the output of the gate goes...

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