Keyestudio GPRS GSM SIM800C Shield KS0254
The Keyestudio Relay Shield integrates a 4-channel 5V relay module designed for seamless compatibility with the UNO R3 control board. This versatile shield enables easy control of high-current appliances using digital pins 4, 5, 6, and 7. Each relay is active HIGH, making it simple to toggle ON or OFF with HIGH/LOW output commands. It also features onboard LED indicators and a standard interface, making it ideal for home automation, IoT projects, and more.
Features
- 5V Active HIGH Relays
- Supports AC 120V/3A or DC 24V/3A
- 4 red LEDs for relay status indication
- Fully compatible with UNO R3 boards
- Operates various appliances and equipment
- Durable build with 3 M3 screw holes
- 5V DC power input
- Compact design with black PCB
Package Includes
- 1 x Keyestudio 4-Channel Relay Shield
The Keyestudio Relay Shield integrates a 4-channel 5V relay module designed for seamless compatibility with the UNO R3 control board. This versatile shield enables easy control of high-current appliances and equipment using digital pins 4, 5, 6, and 7 on the UNO R3 board. Each relay is active HIGH, making it simple to toggle ON or OFF with straightforward HIGH/LOW output commands. With onboard LED indicators and a standard interface, the Keyestudio Relay Shield is an ideal choice for creating home automation systems, IoT projects, and more.
Features
- 5V Active HIGH Relays: Easy to control with microcontrollers.
- Contact Capacity: Supports up to AC 120V/3A or DC 24V/3A.
- Onboard Indicators: 4 red LEDs light up when the corresponding relay is activated.
- Microcontroller Compatibility: Fully compatible with UNO R3 boards.
- High Current Control: Operates various appliances and equipment.
- Durable Build: Includes 3 M3 screw holes for secure installation.
- Power Interface: 5V DC power input.
- Compact Design: Small size with black PCB for sleek aesthetics.
Specifications
| Specification | Details |
|---|---|
| Relay Type | 4-channel, 5V active HIGH |
| Contact Capacity | AC 120V/3A; DC 24V/3A |
| LED Indicators | 4 red LEDs for relay output |
| Power Input | 5V DC |
| Compatibility | UNO R3 Board |
| Dimensions | 69mm x 54mm x 26mm |
| Weight | 39.4g |
| PCB Color | Black |
Pinout:
Pin Configuration
| Digital Pin | Relay | LED Status | COM and NO Connection | COM and NC Connection |
|---|---|---|---|---|
| D4 | RELAY 4 | ON: LED4 lit, OFF: LED4 off | ON: Connected, OFF: Disconnected | ON: Disconnected, OFF: Connected |
| D5 | RELAY 3 | ON: LED3 lit, OFF: LED3 off | ON: Connected, OFF: Disconnected | ON: Disconnected, OFF: Connected |
| D6 | RELAY 2 | ON: LED2 lit, OFF: LED2 off | ON: Connected, OFF: Disconnected | ON: Disconnected, OFF: Connected |
| D7 | RELAY 1 | ON: LED1 lit, OFF: LED1 off | ON: Connected, OFF: Disconnected | ON: Disconnected, OFF: Connected |
Important Notes
- COM and NO (Normally Open): These terminals connect when the relay is activated (HIGH).
- COM and NC (Normally Closed): These terminals connect when the relay is deactivated (LOW).
- LED Indicators: Each relay has a corresponding LED that lights up when the relay is active.
Applications
- Home automation systems.
- Industrial equipment control.
- IoT (Internet of Things) projects.
- Remote control of appliances.
- Robotics and prototyping.
Package Includes
- 1 x Keyestudio 4-Channel Relay Shield