2 CH 12V Relay Board This 2 Road/Channel Relay Module (with light coupling) 12V module meets the safety standard as control areas and load areas have the isolation groove. It is important that the microcontroller share ground with the relay board along with other control signals else it will not able to control the relay.  Very useful project for applications like Micro-Controller based projects, Remote controllers, Lamp on Off, and any circuits which required isolated high current and high voltage switching by applying any TTL or CMOS level voltage. read more : What is Relay? - Working, Applications & Types Features: Dual Channels: Allows control of two separate devices. High Power Handling: Each relay can handle up to 10A at 120V AC or 7A at 240V AC. Optocoupler Isolation: Provides electrical isolation between the control circuit and the high-power devices. Compatibility: Can be used with various microcontrollers like Arduino, AVR, PIC, and ARM. Screw Terminals: Easy connection for the relay outputs. LED Indicators: Visual feedback for relay status. Compact Design: Small and lightweight, making it easy to integrate into projects. Wide Range of Applications: Suitable for controlling AC and DC appliances such as lights, fans, motors, and solenoids. Applications: Widely used for all MCU control, industrial sector, PLC control, smart home control Can be controlled directly by a wide range of microcontrollers

2 Channel Logic Level Converter (I2C, UART, 5V-3.3V) The 2 Channel Logic Level Converter is a small device that safely steps down 5V signals to 3.3V and steps up 3.3V to 5V. This level converter also works with 2.8V and 1.8V devices. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side. Two inputs and two outputs are provided for each side. This logic level converter is compatible with Arduino , Raspberry Pi and STM 32. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side. The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the HV' pin, low voltage (3.3V for example) to LV', and ground from the system to the GND' pin. Application: TTL Logic Level Converter Bidirectional Logic Level Conversion

2 dBi Gain Rubber Duck Antenna 824 – 960 MHz and 1710 – 1980 MHz The 2 dBi Gain Rubber Duck Antenna (824–960 MHz & 1710–1980 MHz) is a compact, high-performance antenna designed to enhance wireless signal range and reliability. Featuring a SMA-Male right-angle foldable connector, this antenna supports GSM and LTE frequency bands, making it ideal for routers, access points, and wireless adapters. Its directional design helps extend network coverage in a specific direction, making it perfect for installations in tight spaces like wiring closets, ceilings, or desktops. Whether used in offices or industrial environments, it offers a practical and efficient solution for improving indoor wireless connectivity.

2 Inch Water Flow Sensor YF - DN50 The YF-DN50 water flow sensor is a device that is used to measure the flow rate of water. It consists of a turbine-type rotor that is placed in the water stream, and as the water flows past the rotor, it causes the rotor to spin. The sensor measures the speed of the rotor and converts it to a flow rate. The sensor has a digital output, which means that it provides a digital signal that can be read by a microcontroller or other host device. The sensor is commonly used in applications such as irrigation systems, water treatment plants, and industrial process control. It is often preferred over other types of flow sensors because it is easy to install and has a low cost. The YF-DN50 sensor is designed to be installed in a pipe with a diameter of 50mm or 1.97 inches. The YF-DN50 water flow sensor is a large 2 inch diameter Water Flow meter Sensor that can be used to measure flow rate from 10 - 200 Liter/min This water flow sensor consists of a plastic valve body, a rotor assembly and a Half effect current sensor. As the water flows through this sensor the rotor rotates and the speed of it changes with changes in the rate of flow of water. The hall-effect sensor outputs the corresponding pulse signal. The output of the flow sensor is proportional to the water flow. The more the water flowing more are the pulses. Features: Flow Range: 10-200 liters per minute (L/min) Operating Voltage: DC 5-18V Output: Square wave pulse signal Sensor Type: Hall effect Maximum Pressure: 1.75 MPa Operating Temperature: Up to 80°C Cable Length: 480mm Dimensions: 92mm x 68mm Applications: Irrigation Systems: Used to monitor and control water flow in agricultural and landscaping irrigation systems. Water Treatment Plants: Helps in measuring and managing water flow in treatment processes. Industrial Process Control: Utilized in various industrial applications to ensure accurate water flow measurement and control. Smart Home Automation: Integrated into smart home systems for monitoring water usage. Vending Machines: Used to measure the flow of water in beverage vending machines. Water Dispensers: Ensures accurate dispensing of water in commercial and residential water dispensers. Tankless Water Heaters: Monitors water flow to regulate heating in tankless water heaters

2 mm pitch 2 pin JST Cable with Connector - (Pack of 10) This connector is a JST 2-pin connector that is designed and manufactured with a pitch of 2 mm. This 2 mm JST cable is a multipurpose cable that is strong, durable, and comes in a cable size of 26AWG. The JST cable with connector is highly reliable and is RoHS compliant. Applications: The transmit AC power supply to PCs and lab equipment. The connectors are used in all types of RCs( cars, boats, planes). The JST connectors are Also used in CCTV connections, pick-ups, etc.

2 Pin Button Switch A 2 pin button switch is a type of switch that has two metal pins or terminals on the back of it. It is designed to be mounted in a hole in a panel or circuit board, and is usually actuated by pressing a button or lever on the front of the switch. These types of switches are commonly used in a variety of electronic devices, including computers, appliances, and industrial control systems, to control the flow of electricity and turn circuits on and off. Some examples of 2 pin button switches include push-button switches, toggle switches, and rocker switches. They are typically small in size and can be easily integrated into a variety of different electronic devices and systems. They are typically rated for a specific voltage and current, depending on the type of switch and the intended application.It can be configured in a variety of different circuit configurations, such as SPST (single pole, single throw), SPDT (single pole, double throw), and DPDT (double pole, double throw).

2 Pin Mini On-Off SPST Rocker Switch (19 x 13mm) - Pack of 2 This is a basic On/Off SPST Rocker Switch for your projects. No screws required, it simply clips into place. This is a two-pin switch that is easy to use, simply cut one of the two power wires and solder each of the ends to the unit. This 6A 250V AC KCD1-108 On-Off Rocker Switch is perfect for controlling power to electronic circuits, robots, etc. We have carefully selected the best On/Off Rocker Switch with a high load rating and the perfect size to for all general-purpose On/Off applications. This rocker switch has two positions – one on position and another off position. The rocker switch stays in the one till it is pressed and changed to the other position. It has two large pins on the backside to which wires can be soldered and connected to your circuit. The KCD1-108 On/Off Rocker Switch is the simplest and easiest power control switch for your project. It comes with tabs on the top and bottom which secure it onto an enclosure without the need for any screws. On and Off positions are clearly marked which help users identify the current switch position during usage. This switch is great to turn on/off and control DC Motors in Robotics, Car and Motorcycle DC Motors, DC Motors in Industrial Machines, Water Dispensers, etc. We have sourced the best switch with a high load rating of 6A at 250VAC which should be suitable for most applications. Switching Mode: ON-OFF Structure: SPST

2 Pin Push in Connector The 2 Pin lever nuts connector is designed with a rated voltage of 400V and an impulse voltage of 4KV. The 2 pin lever nuts compact connector is manufactured with a modified nylon (PA66) and phosphor copper is used as a contact material.

Overall Size : ~15mm X 10mm x 17mm(L*W*H). Terminals : 2 pin (on-off). 3a 250VACc, 6a 125VAC. Black, Pack of 10

2 Set Smart Car Robot Chassis Wheel The 200 RPM Dual Shaft BO Motor Plastic Gear Motor – BO series straight motor gives good torque and rpm at lower operating voltages, which is the biggest advantage of these motors. A small shaft with matching wheels gives an optimized design for your application or robot. Mounting holes on the body & lightweight make it suitable for in-circuit placement. This motor can be used with a 69mm Diameter Wheel for Plastic Gear Motors and an 87mm Diameter Multipurpose Wheel for Plastic Gear Motors. Complete 2WD Robot Car Kit – Perfect for Learning Robotics Applications: Line Follower Robot Obstacle Avoider Robot Self Balancing Robot Firefighting Robot