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nightcatz said:it is working exactly the same way as u have told it .....but it is giving just 4.5v
nightcatz said:gayan....where should i keep the back emf proection diode,can utell me how should i choose the relay according to the component ...pls explain
Hi Gayan,Gayan Soyza said:Remove the OPTOCOUPLER & give the 470 ohm to the positive supply of the 6V rail & see whether you can hear the relay tick sound.
nightcatz said:hi eric i have tried what all u have said using the program u have given me it is switching of and on ....when it is on it is giving 4.4 to 4.6v between pin 2 and 18 and i have connected all the pins from 18 to 25...the test program is displaying the state of each pin when they are grounded( the led is glowing and stoping)