Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Delay timer relay control connection problem

Status
Not open for further replies.

pramodmani

Newbie level 2
Joined
Aug 27, 2017
Messages
2
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
18
Hi,

I'm making an automatic fish feeder for my aquarium that'll switch on for 10 seconds every day at a set time to feed the fish.

Attached is the circuit diagram I am using. I have tried to explain everything graphically. I'm not sure where I am doing wrong as this circuit isn't working as it intend to.

There's also an YouTube reference link I have provided.

https://www.youtube.com/watch?v=ld4f10OLMgU
timer-circuit.jpg
(from 5:08 onwards)

I have taken inspiration from this user and his circuit seems to be working fine. However, his wiring connection is not clear. Can you please help me figure out?
 

FvM

Super Moderator
Staff member
Joined
Jan 22, 2008
Messages
49,418
Helped
14,441
Reputation
29,146
Reaction score
13,239
Trophy points
1,393
Location
Bochum, Germany
Activity points
284,384
Apparently, the YYC-3 timer module isn't providing the intended "pulse shaping" function. You'll either use a timer module with the correct function or shorten the input trigger with a series capacitor.
 

pramodmani

Newbie level 2
Joined
Aug 27, 2017
Messages
2
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
18
Apparently, the YYC-3 timer module isn't providing the intended "pulse shaping" function. You'll either use a timer module with the correct function or shorten the input trigger with a series capacitor.

Wow!! That's too technical for me. Can you please simplify what you mentioned?
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top