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I understand such a question can sound silly for electrical engineer, but I’m software engineer venturing in electrical world datashee need some guidance.
Xiamen Hongfa Electroacoustic JQC-3FF/HS – PDF Datasheet – Relays In Stock |
Please be vary carful not to play with live circuits! The diagrams below should help you understand the layout of the relay board.
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Tutorial: DFR0017 V2 Relay
The relay should have the positive wire of the device being used connected to “IN” and to “Out 1” as shown in figure 2, and any digital signal pin on the arduino end For example pin Moreover, it even looks like relay board has diode already above VCC terminalso I wouldn’t need extra diode on IN line? Thank you very much for your answer, I hope this topic will be helpful for others too. Email Required, but never shown.
Cut and strip a portion of iqc-3ff positive wire so that you end up with two ends of the wire as shown in Figure 2. We recommend using a swappable cable to do this with, as using a relay requires you to perform some minor surgery on the appliance’s cable.
You could easily check this with an Ohmmeter or following the traces on the board. I’ll already tested wiring and relay using LED before posting. On the Arduino side there is: Make sure the appliance to be tinckered with is unplugged from mains.
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JQC-3FF Relay Technical Data
Thank you for the answer. I know people recommend having resistor and transistor on IN line too, but are these necessary in this particular type of dahasheet Sign up using Email and Password. If it does – no need for any external components. I am interpreting the picture of the printed circuit board of the relay module with accompanying datashee as follows: Normally open, which means that when the relay is on a digital high “1” is received from Arduino the device is ON.
So, using Out1 a “1” will turn on the device and a “0” will turn off the device. I’ve tested components on board and can confirm it has: Using single 5V relay jqc-3ff-s-z – safety advice required Ask Question.