Automation: Using a 12V Relay with an LED Display Delay Timer Module (P1 to P4)

Automation: Using a 12V Relay with an LED Display Delay Timer Module (P1 to P4)

This project guide details how to use a 12V relay with an LED display delay timer module. This versatile module offers four distinct programming modes, enabling precise control over various devices and systems. Its applications range from simple home automation tasks to more complex industrial controls.

12V LED Relay Delay Timer: Main View — 12V LED Relay Delay Timer: Main view

Here are some project ideas to inspire you:

Automated Lighting: Control outdoor lighting based on time of day.
Irrigation System: Activate a pump for timed watering cycles.
Security System: Trigger an alarm after a set delay.
Industrial Processes: Control machinery for precise timed operations.

Programs of this module

12V LED Relay Delay Timer: P-1 on screen — 12V LED Relay Delay Timer: P-1 On screen

12V LED Relay Delay Timer: P-1 timing — 12V LED Relay Delay Timer: P-1 Timing

P-1 with the traigger turns ON when signal goes from 0 to HIGH and stays to ON for the time you set.

For P-2 or program 2, once triggered, we have delay of time set to be OFF (3 second in figure above) and then ON time (8 seconds in figure above) and then turns OFF the output.

12V LED Relay Delay Timer: P3 Timing — 12V LED Relay Delay Timer: P-3 Timing

For P-3 not trigger is needed, it will continussly turn ON for the time you set (5 secons in figure above) and then turns OFF with the time you set (3 seconds in figure above).

12V LED Relay Delay Timer: P4 On Screen — 12V LED Relay Delay Timer: P-4 On screen

12V LED Relay Delay Timer: P4 Timing — 12V LED Relay Delay Timer: P-4 Timing

For P-4 or program 4, with the trigger signal the output is turned ON and waits until you trigger again. this In the stop trigger, it will stay on for the time you set (6 secons in firgure above shown in video)>

Hardware/Components

The core component is a delay timer module with a built-in 12V relay (in video at 00:30). This relay can handle loads up to 2500W (at 250V) or 1200W (at 120V) (in video at 00:49). The module features:

A 12V relay (10A)
Three input terminals (12V+, GND, signal)
An onboard 5V voltage regulator
Three buttons for selecting program mode, digit, and adjusting values (in video at 01:44)
An LED display for time settings (in video at 00:17)

The module's dimensions are approximately 35mm x 64mm x 19mm, and it weighs 25.6 grams (in video at 02:32).

Wiring Guide

The wiring is straightforward (in video at 03:02). Connect the module's 12V+ and GND to a 12V power supply. The signal pin can be connected to an Arduino or other control device, or directly triggered manually (in video at 04:12). For AC loads, connect the load wires to the normally open (NO) terminals of the relay (in video at 02:21).

Live Project/Demonstration

The video demonstrates the four programming modes (P1-P4) in detail (in video at 04:27, 07:57, 10:21, 12:35). Each mode offers unique timing capabilities:

P1: A single trigger activates the relay for a preset time (in video at 04:27).
P2: A trigger initiates a delay, after which the relay activates for a second preset time (in video at 07:57).
P3: Continuous ON/OFF cycles with independently adjustable ON and OFF times (in video at 10:21).
P4: The relay stays ON while triggered; upon release, a countdown begins, and the relay turns OFF at zero (in video at 12:35).

The video clearly shows how to navigate the module's interface to set the timing parameters for each mode (in video at 05:18, 08:37, 10:54, 13:01).