ThomsCircuit
Well-Known Member
Ok. Making thoes changes worked. It just does not turn off manually. Only when the timer expires does it. But not when I press the button.
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Ok. Making thoes changes worked. It just does not turn off manually. Only when the timer expires does it. But not when I press the button.
I've noticed its also not cycling off on its own either.
Don't really understand but the circuit had odd behavior for about 10 minutes then cleared up.
Started not responding to the button then when it finally tripped the relay I began timing how long it would take before I could manually turn it off. There was no pattern. Between 30-90 seconds. That went on for about 5 minutes then it suddenly started functioning as designed. With the following exception.
When the timer has expired the corresponding led goes out but the relay remains latched. Pressing the button then releases the relay.
The only thing I notice it works as a pulse or a latch but on latching it will not shut off upon un-latching. I can configure the touch switch to pulse but I have some switches that latch by means of a micro switch that is activated when the cupboard door is opened. Im going to scour the web looking for a solution.
A 12v transformer with a variable voltage reducer set to 5.5vWhat are you using for a power supply?
I checked the voltage at the "beginning" of the circuit. 5.5v i checked it at the relay 4.8v
This is all so fascinating. Im excited to see this through. I had difficulty with my last project too. The BB version worked fine but the soldered up product would not work. I checked it over and over for a few days. Then all of a sudden I power it up and it worked. I made a second one and it did the very same thing. The just like the first one started working.
This morning I checked each leg on each chip. I traced all the jumpers. I powered it up. There was some hesitation getting it to work but it does function just as it did last night. I can manually operate it but if I let it time out the led at pin 10 goes out but the relay stays latched.
Some other things that might help pinpoint an issue. The buzzer only chirps for a millisecond and the led im using to visually show that the relay closed is dim. It has the same 150r resistor as the others. Food for thought.
A 12v transformer with a variable voltage reducer set to 5.5v
Buck converter is a
Mini-360
Sorry. To me transformer / power supply are one in the same. But I am learning they are NOT. So yes the Ledmo power supply 12v. With this mini-360 attached to its output and diald down to 5.5vDid you make the output adjustment?