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The XL4015 5A DC-DC Step Down Adjustable Power Supply Buck Module is a 180 KHz fixed frequency PWM buck (step-down) DC/DC module, capable of driving a 5A load with high efficiency, low ripple, and excellent line and load regulation.

This product is a 180 kHz fixed frequency PWM buck (step-down) DC/DC module, capable of driving a 5A load with high efficiency,  low ripple, and excellent line and load regulation. 

The DC/DC buck module has applications where the input voltage is higher than the output voltage, such as battery, power transformer, DIY adjustable regulated power supply, LCD Monitor and LCD TV portable instrument power supply telecom/networking equipment, 24V vehicle notebook power supply, industrial equipment buck.

This module has an adjustable output Voltage. Also works as a dedicated charger for Lithium Batteries (Li-Ion, LiPo) as it is capable of controlling voltage. Ex. 12V buck to 3.3V, 12V buck to 5V, 24V buck to 5V,24V buck to 12V, 36V buck to 24V, etc.

• Power supply needs: 5v
• Interface type: analog
• Wide detecting scope
• Fast response and high sensitivity
• Simple drive circuit

It is an 8 Channel Isolated 5V 10A Relay Module opto coupler, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc. It is also able to control various appliances and other types of equipment with a large current. Relay output maximum contact is AC250V 10A and DC30V 10A.

One can connect a microcontroller with standard interface directly to it. Red working status indicator lights are conducive to the safe use. The 8 Channel Isolated 5V 10A Relay Module optocoupler has a wide range of applications such as all MCU control, industrial sector, PLC control, smart home control.

So, ready to get switching on your Raspberry Pi?! This neat relay module features 8 x 12V relays rated at 10A/250V each. It is designed to switch up to 4 high currents (10A) or high voltage (250V) loads with the help of microcontroller!

Each relay can individually switch to on/off state. It only requires a voltage of approx 1.0V to switch the inputs on but can handle input voltages up to 12V. This makes it ideal for 3.3V, 5V & 12V devices.

1. High-level trigger refers to the signal voltage between input and trigger, can be understood as a signal input with VCC cathode short-circuit triggered away;
2. Low-level trigger refers to the signal voltage between the input terminal and Earth OV trigger, can be understood as the signal input terminal and the GND negative electrode short circuit triggered away  1-channel relay module connection.

1. Power supply and relay instructions, lit, the disconnect is off;
2. The input signal, signal, common Terminal and start conducting;
3. Useful for appliance control;
4. DC or AC signal, control, you can control the 220V AC load.
5. One normally closed contact and one normally open contact
6. Triode drive, increasing relay coil
7. High impedance controller pin
8. Pull-down circuit for the avoidance of malfunction
9. Power supply indicator and Control indicator lamp
10. The module is compliant with international safety standards, control and load areas isolation trenches.

DC-DC Buck Converter Step Down Module LM2596 Power Supply is a step-down(buck) switching regulator, capable of driving a 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version.

The LM2596 series operates at a switching frequency of 150kHz, thus allowing smaller sized filter components than what would be required with lower frequency switching regulators.

LM2596 DC-DC Buck Converter Step Down Power Supply Module with Digital Voltage Display

Features

• Input voltage range:4 40VDC
• Output voltage range:1.25-37VDC adjustable
• Output current:2A
• voltmeter range: 0 to 40V, error 0.1V
• Input reverse polarity protection
• Built in output short protection function
• Built in thermal shutdown function
• L x W x H =6.1*3.4*12 cm
• Weight: 22g
• LED digital voltmeter tube, the accuracy is adjustable function, can be aimed at your multimeter adjustable accurate.
• Press the right key to let the display show the input or output voltage. when the right OUT led light, it shows output, the left IN led show input.

Additional Information:

• Production Capacity: 1000+
• Delivery Time: 15-20DAYS

The 5V 1 Channel Relay Module for Arduino is designed for controlling AC and DC appliances, such as motors, solenoids, lights, and fans. It supports switching up to 7250VAC@10A and 30VDC@10A. The module operates at 5V TTL and features screw terminals for easy connection (C, NC, NO). With 5mA trigger current, it includes a flyback diode to protect your microcontroller, and LED status indicators show relay on/off status. Ideal for Arduino applications, offering reliable and safe control.

1. Relay Ratings: Switches up to 7250VAC@10A and 30VDC@10A, suitable for AC and DC appliances.
2. Trigger Current: Low 5mA trigger current for efficient operation.
3. Working Voltage: Operates at 5V TTL signal.
4. Mounting Holes: Four 3.1mm diameter holes for easy mounting.
5. Screw Terminals: Easy connection with C, NC, NO terminals.
6. Fly back Diode: Protects the microcontroller from relay kickback.
7. LED Indicators: Shows ON/OFF status of the relay.
8. Protection: Transistor (BC547) used to safely drive the relay.
9. Microcontroller Compatibility: Works with Arduino.
10. Wide Application: Controls motors, solenoids, lights, fans, etc.

1 x 5V 1 Channel Relay Module for Arduino

L293D Motor Driver Module is a medium power motor driver perfect for driving DC Motors and Stepper Motors. It uses the popular L293 motor driver IC. It can drive 4 DC motors on and off, or drive 2 DC motors with directional and speed control.

The driver greatly simplifies and increases the ease with which you may control motors, relays, etc from micro-controllers. It can drive motors up to 12V with a total DC current of up to 600mA.

You can connect the two channels in parallel to double the maximum current or in series to double the maximum input voltage. This motor driver is perfect for robotics and mechatronics projects for controlling motors from microcontrollers, switches, relays, etc. Perfect for driving DC and Stepper motors for micro-mouse, line-following robots, robot arms, etc.

Note: Image may vary from actual product in terms of Design and color according to the availability.   

1. Wide supply voltage: 4.5 V to 12 V.
2. Max supply current: 600 mA per motor.
3. The driver two holes of 3 mm dia.
4. Male burg-stick connectors for supply, ground and input connection.
5. Screw terminal connectors for easy motor connection.
6. High noise immunity inputs.

1 x L293D Motor Driver Module.