IntroductionThis is a 4-channel optpcoupler-isolated relay Arduino UNO Shield, capable of controlling high-power devices operating at AC 240V 5A or DC 24V 5A for each channel.In a home automation project, relay modules play a crucial role in managing devices such as lights, pumps, garage doors, speakers, power outlets, and fans. However, traditional relay modules are burdened by space requirements, intricate wiring, and a potential for unreliable operation. Moreover, low-quality relay modules lacking optocoupler isolation compromise the safety of the entire project.By adopting the Arduino Shield approach, this product not only eliminates the need for complex wiring but also provides a substantial boost to project reliability. Through the integration of a 4-channel relay, it enables an Arduino UNO mainboard to exercise comprehensive control over a diverse range of devices.4 Channel Relay Shield for ArduinoFurthermore, this expansion board boasts an XBee interface in addition to 14 3-pin digital ports and 6 3-pin analog ports. With the inclusion of the XBee interface, users have the freedom to integrate wireless modules like Bluetooth, WiFi, or Zigbee, unlocking a realm of advanced capabilities such as IoT integration, seamless smart home integration, convenient mobile control, and efficient coordination among multiple devices.Arduino Uno Relay Shield Boasts an XBee InterfaceWith its 4-channel optocoupler isolation and independent power supply features, this relay expansion board effectively isolates the electrical connection between AC and DC, guaranteeing the utmost electrical safety. This meticulous design effectively eliminates any potential electromagnetic interference, thereby safeguarding the Arduino mainboard from the perils of high-voltage electrical signals and mitigating the risk of damage.FeaturesCompatible with Arduino UNO Rev3Each Relay has its own test button to test the connectionStandard DFRobot 3 Pin outXBee I/O direct controlSpecificationCompatible with Arduino UNO Rev34 buttons to test moduleLED status indicator of relaySupport Xbee IO directly controlXbee socket for wireless communicationSelectable digital IO pin for control (Default digital 2,7,8,10) 6 channels Analog IO & 13 channels Digital IO Up to 4 Relay with photo-coupled circuitContact Rating 3A AC 120V / DC 24VMax Switching Voltage AC 240V / DC 60V (Less than 38V is recommended)Max Switching Current 5AMax Switching Power AC 360VA / DC 90WElectrical Life (Min) 100,000 OperationsMechanical Life (Min) 10,000,000 OperationsSafety Standard(relay) UL cUL TUV CQCCoil Working Voltage 9VDCWorking temperature -30℃ to +85℃Working Humidity 40% - 85%Size: 95x65mmDocumentsWiki (Relay Shield for Arduino V2.1)SchematicsBoard LayoutSample codeHJR4102 datasheetShipping ListRelay Shield for Arduino V2.1 x1Nylon stand-off with screw x2
IntroductionThe Arduino turbidity sensor detects water quality by measuring the level of turbidity. It is able to detect suspended particles in water by measuring the light transmittance and scattering rate which changes with the amount of total suspended solids (TSS) in water. As the TTS increases, the liquid turbidity level increases. You may also check Liquid Sensor Selection Guide to get better familiar with our liquid sensor series.This Arduino turbidity sensor has both analog and digital signal output modes. You can select the mode according to the MCU as the threshold is adjustable in digital signal mode.Turbidity sensors can be used in the measurement of water quality in rivers and streams, wastewater and effluent measurements, sediment transport research, and laboratory measurements.SpecificationOperating Voltage: 5V DCOperating Current: 40mA (MAX)Response Time: <500msInsulation Resistance: 100M (Min)Output Method: Analog/DigitalAnalog Output: 0-4.5VDigital Output: High/Low-level signal (you can adjust the threshold value by adjusting the potentiometer)Operating Temperature: 5℃~90 ℃Storage Temperature: -10℃~90℃Weight: 30gAdapter Dimensions: 38mm*28mm*10mm/1.5inches *1.1inches*0.4inchesDocumentsTurbidity sensor SKU: SEN0189 Wiki Shipping ListTurbidity sensor adapter x1Turbidity sensor probe x1Turbidity sensor cable x1Gravity analog sensor cable x1
IntroductionThis is a 4-channel optpcoupler-isolated relay Arduino UNO Shield, capable of controlling high-power devices operating at AC 240V 5A or DC 24V 5A for each channel.In a home automation project, relay modules play a crucial role in managing devices such as lights, pumps, garage doors, speakers, power outlets, and fans. However, traditional relay modules are burdened by space requirements, intricate wiring, and a potential for unreliable operation. Moreover, low-quality relay modules lacking optocoupler isolation compromise the safety of the entire project.By adopting the Arduino Shield approach, this product not only eliminates the need for complex wiring but also provides a substantial boost to project reliability. Through the integration of a 4-channel relay, it enables an Arduino UNO mainboard to exercise comprehensive control over a diverse range of devices.4 Channel Relay Shield for ArduinoFurthermore, this expansion board boasts an XBee interface in addition to 14 3-pin digital ports and 6 3-pin analog ports. With the inclusion of the XBee interface, users have the freedom to integrate wireless modules like Bluetooth, WiFi, or Zigbee, unlocking a realm of advanced capabilities such as IoT integration, seamless smart home integration, convenient mobile control, and efficient coordination among multiple devices.Arduino Uno Relay Shield Boasts an XBee InterfaceWith its 4-channel optocoupler isolation and independent power supply features, this relay expansion board effectively isolates the electrical connection between AC and DC, guaranteeing the utmost electrical safety. This meticulous design effectively eliminates any potential electromagnetic interference, thereby safeguarding the Arduino mainboard from the perils of high-voltage electrical signals and mitigating the risk of damage.FeaturesCompatible with Arduino UNO Rev3Each Relay has its own test button to test the connectionStandard DFRobot 3 Pin outXBee I/O direct controlSpecificationCompatible with Arduino UNO Rev34 buttons to test moduleLED status indicator of relaySupport Xbee IO directly controlXbee socket for wireless communicationSelectable digital IO pin for control (Default digital 2,7,8,10) 6 channels Analog IO & 13 channels Digital IO Up to 4 Relay with photo-coupled circuitContact Rating 3A AC 120V / DC 24VMax Switching Voltage AC 240V / DC 60V (Less than 38V is recommended)Max Switching Current 5AMax Switching Power AC 360VA / DC 90WElectrical Life (Min) 100,000 OperationsMechanical Life (Min) 10,000,000 OperationsSafety Standard(relay) UL cUL TUV CQCCoil Working Voltage 9VDCWorking temperature -30℃ to +85℃Working Humidity 40% - 85%Size: 95x65mmDocumentsWiki (Relay Shield for Arduino V2.1)SchematicsBoard LayoutSample codeHJR4102 datasheetShipping ListRelay Shield for Arduino V2.1 x1Nylon stand-off with screw x2
IntroductionThe Arduino turbidity sensor detects water quality by measuring the level of turbidity. It is able to detect suspended particles in water by measuring the light transmittance and scattering rate which changes with the amount of total suspended solids (TSS) in water. As the TTS increases, the liquid turbidity level increases. You may also check Liquid Sensor Selection Guide to get better familiar with our liquid sensor series.This Arduino turbidity sensor has both analog and digital signal output modes. You can select the mode according to the MCU as the threshold is adjustable in digital signal mode.Turbidity sensors can be used in the measurement of water quality in rivers and streams, wastewater and effluent measurements, sediment transport research, and laboratory measurements.SpecificationOperating Voltage: 5V DCOperating Current: 40mA (MAX)Response Time: <500msInsulation Resistance: 100M (Min)Output Method: Analog/DigitalAnalog Output: 0-4.5VDigital Output: High/Low-level signal (you can adjust the threshold value by adjusting the potentiometer)Operating Temperature: 5℃~90 ℃Storage Temperature: -10℃~90℃Weight: 30gAdapter Dimensions: 38mm*28mm*10mm/1.5inches *1.1inches*0.4inchesDocumentsTurbidity sensor SKU: SEN0189 Wiki Shipping ListTurbidity sensor adapter x1Turbidity sensor probe x1Turbidity sensor cable x1Gravity analog sensor cable x1
