The electric fan of remote control is to do a large amount of research and development and production in Pearl River Delta area of Guangdong in initial stage of the 1990s, and there is specialized mask chip that serves as top management chip, I have done the systematic scheme of receiving and emissive corollary use with the one-chip computer now.
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The infrared remote control circuit has already become the fashion of a kind of design circuit now, has introduced the outside line remote launch of Fructus Citri tangerinae, principle of the receiving system briefly now, provide an ingenious implement method that is used 89C2051 as the receiving system demoder of remote control, and 51 intact assembler codes. The main programs of schematic diagram and programming including being launched, received, calling order, receiving the procedure course of the procedure, regular interrupt program, thus finish this main point designed and consult the plot course of the procedure block-diagram, can write the application software. The electric fan control system of remote control is divided into two major parts: Report controller and electric fan control panel, describe respectively as follows. In order to be able to be far away from the control electric fan of the distance, adopt the report controller outside Fructus Citri tangerinae. Infrared report controller launch and the intersection of receiving and two part make up usually, radiating portion form by the intersection of one piece and the intersection of plane and 80C2051, etc. The receiving unit is formed by one-chip computer 89C51, etc. And MCS-8051 products compatibility, 2KB very heavy programming flash memory, survivability: 1000 is written / erased for cycle, 2. 7V and operated thed working range of 6V, the whole static...
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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