microcontroller circuit schematics
Posted on Feb 6, 2014
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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The quartz QZ1 of the preceding receivers which set the work frequency is not on the market any...
A device designed for measuring time and temperature used in chemistry laboratory. The circuit...
This circuit is designed around a 4049 hex inverter/buffer. Two inverters are used ina...
This logic probe can be selected to operate on TTL or CMOS logic levels, depending on switch S1....
Both mics, along with the stereo mics SM2 and SM23, used the same basic capsule design ” which...
The heart of the circuit consists of the Arduino microprocessor which is indicated by the header...
basically i have what is known as a bite alarm (for fishing). normally bite alarms beep as the...
Matrix Keypad is a very useful and userfriendly when we want to design certain applications like...
Just ran a +12V switched wire back to the camera wiring and connected it to the same place that...
Burned out some resistors on the circuit board of my Roland KC-300 amp and they are so black that...
This LCD terminal provide two modes of operation by selecting jumper J1. When J1 is open the...
Circuit shown in Figure 3-201. The circuit has two starting resistor, starting resistor...
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