There are many kinds of relays, but the problem is usually that they need to constantly supply power, or voltage. And if there is no place or in order to save you cannot afford it? Is it possible to somehow fix it? Yes, and help in creating circuits in such cases will impulse relay. What it is, how it works? What are the features of the scheme must take into account those who decide to do it yourself? Average relay is a board, which has a built-in pulse receiving information signals.
Such an Arduino SSR board has a strong advantage - no need to constantly apply pressure to succeed. The energy of this unit is very effective. Therefore, inclusion of the trimmer can be found in many electronic devices. To better understand the operation, it must be read in conjunction with the schematic component. Therefore, they will be described together.
The 8 channel relay board presents the sensor unit and an electric coil. It can be powered by DC or AC. But when it exceeds a certain threshold value, the coil is activated mechanism that modifies the state of the contacts. Thus, if they were closed, then opened, and vice versa. When the coil is energized it generates magnetic field which, in fact, affect the switch mechanism. It is, in fact, operates by transmitting status from one circuit to another.
The first is responsible for managing, located on the second load circuit. Given that all the pulses are generated solely due to electromagnetic fields, it should be noted an important advantage - this device is silent. The elements of the second circuit also have a part that is responsible for the relay memory. Actually, if we consider the existing technology, it can be seen that any low-voltage modular device has a mechanism that is responsible for data storage. Therefore, if you disable and re-connect the pulse relay "remembers" the last setting, connection information, network status and operation of the device itself.
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