spike47 Member Jun 20, 2019 #1 Hi I have just purchased a 5V 433MHz Single Channel Relay and want to know what the connectors are for , as in the attached photo . I know the GND /VCC , and I guess the CK/COM/CB are NC or NO Contacts ! , but not sure what the HC is for . Cheers spike
Hi I have just purchased a 5V 433MHz Single Channel Relay and want to know what the connectors are for , as in the attached photo . I know the GND /VCC , and I guess the CK/COM/CB are NC or NO Contacts ! , but not sure what the HC is for . Cheers spike
spike47 Member Jun 20, 2019 #3 Here is a pic Attachments 5v single chanel WiFi Relay a.gif 249.3 KB · Views: 114
K KMoffett Well-Known Member Jun 20, 2019 #4 No manual? Link to the purchase site? My guess is it's for a local trigger switch.
spike47 Member Jun 20, 2019 #5 There is no manual for it , there is some mention of HC I have just found for a simular product and it says HC: push button switch ! . cheers
There is no manual for it , there is some mention of HC I have just found for a simular product and it says HC: push button switch ! . cheers
K KMoffett Well-Known Member Jun 20, 2019 #6 On another board it looks like a pushbutton switch is connected between Vcc and the trigger (your HB?).
On another board it looks like a pushbutton switch is connected between Vcc and the trigger (your HB?).
spike47 Member Jun 20, 2019 #7 Yes that sounds about right , think I will try it , prob a manual way to operate the relay if the remote stopped working !
Yes that sounds about right , think I will try it , prob a manual way to operate the relay if the remote stopped working !
ronsimpson Well-Known Member Most Helpful Member Jun 20, 2019 #8 Attached is the data sheet on the relay. That should help. Attachments SRD-05VDC-SL-C-Datasheet Relay.pdf 99.7 KB · Views: 102