Hello!
I'm fairly inexperienced with circuits etc. but I know enough to have a bit of a tinker. I inherited a toy gargoyle with eyes that have red LED's in them. I decided to get a few parts and try and make it motion activated, so the eyes would light up on motion, and play a sound.
The eyes are working perfectly, however I don't think the relay is getting enough power to trip, so the sound isn't playing. I did notice that in one iteration of my setup, when i first turned it on, the sound would play. I can only guess that the initial power up had a spike, enough to trip the relay, but not repeatable after that. I tested it with a multi meter and the output of the PIR sensor is about 3v. I suppose my question is, what should I do to get the sound to play upon motion? I know that I could get a raspberry Pi or arduino involved but I'd like to keep it more simple than that if possible.
- Can/should I get a relay that requires less power?
- Can I use a component to boost the voltage so it can trip the relay?
- Is there an alternative component that could replace the relay?
Attached is my design, apologies for it's simplicity and I'm sure for breaking every convention in circuit design. Also I've attached the components I used.
Thanks in advance for any help.
I'm fairly inexperienced with circuits etc. but I know enough to have a bit of a tinker. I inherited a toy gargoyle with eyes that have red LED's in them. I decided to get a few parts and try and make it motion activated, so the eyes would light up on motion, and play a sound.
The eyes are working perfectly, however I don't think the relay is getting enough power to trip, so the sound isn't playing. I did notice that in one iteration of my setup, when i first turned it on, the sound would play. I can only guess that the initial power up had a spike, enough to trip the relay, but not repeatable after that. I tested it with a multi meter and the output of the PIR sensor is about 3v. I suppose my question is, what should I do to get the sound to play upon motion? I know that I could get a raspberry Pi or arduino involved but I'd like to keep it more simple than that if possible.
- Can/should I get a relay that requires less power?
- Can I use a component to boost the voltage so it can trip the relay?
- Is there an alternative component that could replace the relay?
Attached is my design, apologies for it's simplicity and I'm sure for breaking every convention in circuit design. Also I've attached the components I used.
Thanks in advance for any help.