Hongfa HFD27/S(). Explore Hongfa on Octopart: the fastest source for datasheets, pricing, specs and availability. Hongfa HFD27/S: available from 2 distributors. Explore Hongfa on Octopart: the fastest source for datasheets, pricing, specs and availability. Minimum Quantity, 1 piece(s). Packing Unit, 25 piece(s). Master Carton, piece(s). Gross weight, kg. Customs Number, Only for registered user.

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Hongfa HFD27 Series 2A DPDT 5V PCB Mount Sensitive Subminiature DIP Relay

The pins 1 and 16 are the pins where we need to give the trigger pulse. A relay is used to connect or disconnect a circuit based on a trigger signal. Newer Post Older Post Home. Which means the arm of the switch is 00-5s between 4 and 6 by 0055-s and when a pulse is given to the relay the arm moved from 6 to 8, thus disconnecting 6 and connecting 4 to 8.

The same it true for the pins 13,11 and 9 respectively. Among the three pins 4,6,8 4 and 6 are normally closed that is 4 is be default connected to 6 and when the triggering signal or hfc27 is given to pin1 the connection between 4 and 6 is broken.

Signal Relay [HFDS] Communica Online

Which means the arm of the switch is connected between 4 and 6 by default and when a pulse is given to the relay the arm moved from 6 to 8, thus disconnecting hffd27 and connecting 4 to 8.

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The following figure shows the wiring diagram for the HFD The pins 1 and 16 are the pins where we need to give the trigger pulse.

The same it true for the pins 13,11 and 9 respectively. Apple Guy December 5, at 7: Connect pin 4 to 5v pin on Arduino board.

Now load the following program into the board. Among the three pins 4,6,8 4 and 6 are normally closed that is 4 is be default connected to 6 and when the triggering signal or pulse is given to pin1 the connection between 4 and 6 is broken. In the post we will see the basics of using the HFD27 relay using the Arduino uno board. 00-5s have a question and i’m not sure if your still monitering this post but i am using this exact hd27 relay with an uno and i want to use it to controll an Hvac system so my question is if i am using the 2 leads from the hvac system and they need to be connected togather would it only be pin 1 and 16 that hgd27 connected to the arduino?

HONGFA PCB Relays Series HFD27

Connect pin 4 to 5v pin on Arduino board. Apple Guy December 5, at 7: I have a question and i’m not sure if your still monitering this post but i am using this exact same relay with an uno and i want to use it to controll an Hvac system so my question is if i am using the 2 leads from the hvac system and they need to be connected togather would it only be pin 1 and 16 that are connected to the arduino?

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Thus we bfd27 two relays in the HFD27 but both are controlled by the same trigger signal. Now load the following program into the board. Posted by Tux Think at 4: Connect pin 16 and cathode of the LEDs to a common point and connect the common point to the ground pin on the Arduino board.

The following figure shows the wiring diagram for hfv27 HFD Thus we have two relays in the HFD27 but both are controlled by the same trigger signal.

Connect pin 16 and cathode of the LEDs to a common point and connect the common point to the ground pin on the Arduino board. Posted by Tux Think at 4: In the post we will see the basics of using the HFD27 relay using the Arduino uno board.

Newer Post Older Post Home. A relay is used to connect or disconnect a circuit based on a trigger signal.