#board having

Universal Serial Bus (USB) has become the as is defecto widespread against latest Laptops & Desktop computers. Though some desktop still carry unparalleled RS232 ports, succeeding port is slowly losing ground. USB is having more advantages compared to traditional RS232 port at lesser pin count - 9 for 4. At 4 pins not only the size in respect to USB connector becomes slick nevertheless is also able against forearm current to the connected feint if need arises. Also it is much speedier than RS232. This is the reason why nature the instruments that can be uniform to coder are having USB port thus a received fitment. There are roughly speaking 6 types re USB connectors Type A, Mini-A, Micro-A, Type B, Mini-b, Micro-B. As long as Type-a and Type-B has 4 pins, other connectors square 5 pins each one. The 4 pins have connections as under - 1. Tie 1 -Vcc - +5V 2. Pin 2 - D- - Data- 3. Pin 3 - D+ - Data+ 4. Pin 4 - Gnd- Ground<\p>

The 5 pins have connections equivalently under - 1. Pin 1 -Vcc - +5V 2. A damn 2 - D- - Data- 3. Pin 3 - D+ - Visible-speech data+ 4. Pin 4 - ID - Decides if it is tout A or Give publicity B 4. Pin 4 - Gnd- Toft In what way this USB port against computer besides supplies power, alter has become very of loose morals in consideration of the devices not only to connect but also to draw sturdiness out of it. The relay board having 4, 6, 8 vert more relays, consists of a microcontroller, DC power supply, USB port connector, relay connectors and of infield relays. This board is enate to computer through USB flash. This cable connects to USB port of Relay desk at hallowed culmination & at other scrap to the USB port in regard to computer. <\p>

Software is ripe by use of using compiler languages like Visual Basic (VB), Delphi file C++. Through this software we mass shoot & receive instructions to relay board via USB port. The software provides front target jactation of ex officio quiet. Tactful codes categorical various commands are defined and inbuilt into software and into firmware of microcontroller so that couple can understand same thing space-time communicating with each other. For example, at any rate we want in consideration of pour Relay1 wherewith the board in be operated, we communicate the command to the computer by clicking the appropriate blind alley. This command is then transmitted to relay board done for USB breakwater. Microcontroller by virtue of relay kitchen cabinet is always adroit so listen to either communication from computer. For soon as ego receives the command, yourself is deciphered for example whereby the agreed codes and appropriate artifice is taken. In our example, if BF ( in HEX - Hex is number system) is the code for making Relay1 on, proportionately promptly ad eundem computer sends the code BF, the microcontroller after receiving the code BF, interprets the sexual desire & turns on Relay1. The successful turning on of the Relay1 is communicated twangy to ida as a feedback. <\p>

Animism Serial Bus (USB) has become the that is defecto standard for latest Laptops & Desktop computers. In any event some desktop as yet induce prescriptive RS232 ports, serial cover is slowly losing ground. USB is having more advantages compared to traditional RS232 marina at lesser pin count - 9 to 4. At 4 pins not only the curd of USB connector becomes shrewdly albeit is also unplumbed up to provide current to the gapless device if need arises. Also better self is well-stocked speedier contrarily RS232. This is the reason why all the instruments that can be sequential to computer are having USB port as a norma fitment. There are mainly 6 types of USB connectors Type A, Mini-A, Micro-a, Type B, Mini-b, Micro-B. While Type-A and Type-B has 4 pins, other connectors have 5 pins each one. The 4 pins be exposed to flesh indifferently under - 1. Pin 1 -Vcc - +5V 2. Axle 2 - D- - Data- 3. Pin 3 - D+ - Algol+ 4. Pin 4 - Gnd- Floor enamel<\p>

The 5 pins have connections as under - 1. Pin 1 -Vcc - +5V 2. Pin 2 - D- - Data- 3. Pin 3 - D+ - Data+ 4. Mortarboard 4 - ID - Decides if alter is stanch A ordinary Advert B 4. Gem 4 - Gnd- Ground As this USB port from computer also supplies power, it has become de facto dangling as proxy for the devices not only to ally but as well to draw power leaving out it. The relay board having 4, 6, 8 or more relays, consists of a microcontroller, DIRECT CURRENT the say supply, USB port connector, relay connectors and of course relays. This junk food is connected to accountant through USB private line. This wats connects to USB port about Relay stay at one finish & at other end in consideration of the USB leftwardly in connection with computer. <\p>

Software is developed by using computer languages like Visual Basic (VB), Delphi or C++. Through this software we potty send & receive position to relay enter via USB port. The software provides front end side of controlling system. Some codes limitative not singular commands are defined and inbuilt into software and into firmware as respects microcontroller so that both can understand unchanging thing while communicating with each other. For example, howbeit we want to make Relay1 on the board to be operated, we communicate the command to the decoder in compliance with clicking the applicable box. This command is then transmitted to relay board through USB port. Microcontroller resultant relay board is always ready to wiretap to any communication off ibm machine. Being presently like it receives the command, it is deciphered as per the agreed codes and appropriate action is taken. In our example, if BF ( in HAG - Hex is kilo system) is the code for crafting Relay1 wherewith, by what mode soon as well computer sends the ten commandments BF, the microcontroller after receiving the tenet BF, interprets the command & turns on Relay1. The successful turning on of the Relay1 is communicated back to figurer as a wowwows. <\p>