GODIYMODULES DC 7V-24V Sound Sensor Light Sensor Control Delay Switch Relay Module Instruction Manual

1. Introduction

The GODIYMODULES DC 7V-24V Sound Sensor Light Sensor Control Delay Switch Relay Module (Model JY-3-60s-001) is designed to activate a relay based on detected sound and/or light levels, with an adjustable delay. This module offers flexible control options for various automation and sensing applications.

Key Features:

• Dual Control Modes: Operates with sound control only, or a combination of sound and light control. Note that light control cannot be used independently.
• Adjustable Sound Sensitivity: Features two-stage amplification, allowing sound detection sensitivity to be adjusted from 100 to 5000 times (corresponding to approximately 10 to 90 decibels).
• Adjustable Light Sensitivity: The light intensity threshold is adjustable from 10 to 10000 Lux, covering conditions from near darkness to bright sunlight.
• Configurable Delay Time: The relay pull-in delay can be set from 3 to 60 seconds. This is a non-precision delay based on capacitor charging and discharging, and its exact duration can be influenced by sound triggers.
• Reverse Polarity Protection: The module includes protection against reverse power supply connection, preventing damage to the circuit.

2. Product Overview and Components

Familiarize yourself with the module's components and layout using the images below.

Figure 2.1: Angled view of the module, showing the relay, terminal blocks, and microphone.

Figure 2.2: Top-down view of the module, highlighting the potentiometers and main ICs.

Figure 2.3: Module with the external sound sensor (microphone) connected via its cable.

Figure 2.4: Bottom view of the module, showing solder points and mounting holes.

Figure 2.5: Labeled diagram illustrating key components and connection points for the module.

3. Specifications

4. Setup and Wiring Instructions

Carefully follow these instructions for proper setup and wiring. Incorrect wiring can damage the module or connected devices.

Power Supply Connection:

1. Connect your DC power supply (7V-24V) to the module's power input terminals. Ensure correct polarity: connect the positive (+) terminal of your power supply to the '+' terminal on the module, and the negative (-) terminal to the '-' terminal on the module.
2. The module has reverse polarity protection, meaning it will not operate if connected incorrectly, but it is always best practice to ensure correct wiring.

Relay Output Connection:

The module features a relay with three output terminals: Common (COM), Normally Open (NO), and Normally Closed (NC). These terminals are used to control an external device.

• COM (Common): This is the common terminal for the relay switch.
• NO (Normally Open): This terminal is open (disconnected) when the relay is inactive and closes (connects to COM) when the relay is activated. Use this for devices that should turn ON when triggered.
• NC (Normally Closed): This terminal is closed (connected to COM) when the relay is inactive and opens (disconnects from COM) when the relay is activated. Use this for devices that should turn OFF when triggered.

Connect your device's control circuit to the COM terminal and either the NO or NC terminal, depending on your desired operation.

5. Operation and Adjustment

The module features multi-turn precision potentiometers for adjustment. These can be rotated up to approximately 30 times. You may hear a slight 'kaka' sound when reaching the end of the adjustment range.

Basic Adjustment Sequence:

For optimal setup, follow this recommended sequence:

1. Disable Light Control: Initially, cover the photoresistor with black tape to disable the light control function. This simplifies the initial sound sensitivity adjustment.
2. Set Minimum Delay: Turn the delay adjustment knob clockwise to set the delay to its shortest duration. This helps in quickly observing the relay's response during sound sensitivity adjustment.
3. Adjust Sound Intensity: Proceed to adjust the sound intensity threshold.
4. Adjust Delay Time: Once sound intensity is set, adjust the delay time.
5. Adjust Light Intensity (Optional): If using light control, uncover the photoresistor and adjust the light intensity threshold.

Detailed Adjustment Steps:

1. Initial Setup: Ensure the photoresistor is covered (if not using light control) and the module is powered with 7V-24V DC. Set the delay knob clockwise to the shortest delay.
2. Sound Sensitivity Adjustment: In a relatively quiet environment, turn the sound intensity threshold adjustment knob clockwise until the relay is not closed (the LED indicator is off). Then, make a sound (e.g., speak or clap) to observe if the LED lights up. Since the delay is short, the LED should turn off quickly. Gradually adjust the knob counter-clockwise to increase sensitivity until the desired sound level triggers the relay reliably.
3. Delay Time Adjustment: After setting the sound intensity, gradually turn the delay knob counter-clockwise. Trigger the module with sound (speak or clap) and observe the duration the relay remains active. Adjust until you achieve the desired delay time, up to a maximum of 1 minute.
4. Light Intensity Adjustment (Optional): If you wish to use the light-control function, remove the black tape from the photoresistor. Turn the light intensity knob clockwise to make the module trigger in dimmer light (i.e., it will pull in when it's darker). Turn it counter-clockwise to make it trigger in brighter light. To completely disable the light control function, simply cover the photoresistor with opaque tape.

6. Troubleshooting

• Relay Not Activating:
  • Verify the power supply voltage is within the 7V-24V range and correctly connected.
  • Check all wiring connections for looseness or incorrect placement.
  • Ensure the sound sensitivity is adjusted appropriately for the ambient noise level.
  • If light control is enabled, ensure the light conditions meet the set threshold.
• Relay Always Active or Triggering Constantly:
  • The sound sensitivity may be set too high. Adjust the sound intensity knob clockwise to decrease sensitivity.
  • If light control is enabled, the light intensity threshold might be set too low, causing it to trigger in current light conditions. Adjust the light intensity knob.
  • Check for continuous background noise or light fluctuations that might be triggering the sensor.
• Inconsistent Triggering:
  • Fine-tune both sound and light sensitivity settings.
  • Consider environmental factors such as drafts (affecting sound sensor), flickering lights, or intermittent noise sources.
• Delay Time Issues:
  • Remember that the delay is non-precision. Re-adjust the delay knob to achieve the closest desired duration.
  • Ensure the sound trigger is consistent, as it can influence the delay capacitor's charging.

7. Maintenance

The GODIYMODULES Sound Sensor Light Sensor Control Delay Switch Relay Module requires minimal maintenance. Keep the module clean and dry. Avoid exposing it to extreme temperatures, humidity, or corrosive environments. Do not attempt to disassemble the module beyond what is necessary for wiring and adjustment, as this may void any potential warranty.

8. Warranty and Support

Specific warranty information for this product is not provided in the available documentation. For any technical support, troubleshooting assistance, or warranty inquiries, please contact the seller or manufacturer directly through your purchase platform.