Yusef Posted November 24, 2020 Share Posted November 24, 2020 Hi, Firstly why there isn't any Electronic subforum here!?? Secondly i installed a pack of CCTV for my parents' house Then i saw one of the weak chinese cameras switches to B/W black and white while the night. I installed several LEDs around the parking and selected 'DAY MODE'[forever] in the settings of the DVR, Well, One has to turn on the LEDs every night, and switch off every day!! Then i decided install a Photo-Cell that does that automatically, Then i thought and remembered that the camera itself had a noise like to noise of the relay for switching D/N! Then i decided research for diagram/datasheet/schematic of the camera that find Does it have any relay within that or not! And didn't find in Google[pbuh] Do you have any knowledge about existence of any relay!? IF it has, THEN I suggest the companies of CCTVs to add such option to their CCTVs and add an external wire for that side of others Thanks. Also this is a thermometer for our neighbours that was been damaged and he himself was tried to fix it then he made it how you see in the photo!! I asked him: who has made you forced to open it while you are only a Goldsmith!?? He replied: don't you remember that you yourself were my worker about 20 years ago!?? I replied: Hahaaaaha but I had experience also after that had study about the Electronic Link to comment Share on other sites More sharing options...
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