The intersection of industry and data collecting system, hydrometeorologicalcontrol system, robot control system, digital image transmission system, etc. , it is due to the electron transport of the data information. We can say, the data information transmission system is important constituent elements of different intelligent control systems. And the data transmission majority adopts the wired data mode, such as
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parallet transfer, serial transmission and CAN bus, etc. In the transmission mode of the wired data. Machine format transmission carriers are paired line, coaxial or optic fibre. In fact, data transmission can also use wireless transmission mode, namely realize data transmission through the air or vacuum. Compare in traditional wired data transmission mode, wireless transmission mode needn`t consider transmitting the installation question of the cable, thus saves a large number of cables, reduce difficulty of construction and system cost, therefore is a very potential subject for research. This text provide with the intersection of ATMEGA16L and one-chip computer and the intersection of nRF905 and wireless the intersection of radio frequency and device receiving and dispatching constituent one wireless cipher scheming of data transmission system. This system is launched and received the module to make up. After the data that will launch the module and will be sent mainly are dealt with by the one-chip computer, send through nRF905 out. In receiving the module, nRF905 reveals through the nixie tube after receiving the data correctly, thus realize the wireless communication of the short distance. The overall block diagram of this system is shown as in Fig. 1, the arrowhead points to the trend which shows the signal in the picture. This system can be divided into power module, the control module of centre, wireless four parts...
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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