Components
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Breadboard Trim Potentiometer – 10K
$1.64Breadboard trim potentiometer – 10K
These potentiometers are great for project prototyping. The three legs are spaced to fit perfectly in our range of solderless breadboards, giving each leg its own lane for hooking up to your microcontroller with jumper wires.
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Four-Channel Low Level Trigger Power 5V Relay Module
$10.90This four channels Relay Module can be used to control the lighting, electrical and other equipments through the digital IO port. The digital input circuit is optically isolated from the relay, so your controller is protected from voltage spikes and surges. The module is controlled with 5V signal and they are pre-soldered. A logic “LOW” to the control pin will turn the relay ON.
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I2C 16×2 Character LCD Module
$21.80This is another great 16×2 character LCD display with I2C interface. As the pin resources of Arduino controller is limited, your project may be not able to use standard LCD module after connected with a certain quantity of sensors or SD card. However, with this I2C interface LCD module, you will only need 2 pins (SCL and SDA) to display the information. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for Arduino based project.
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Infrared LED Receiver Diode
$1.09The Infrared (IR) LED Receiver Diode is a small component that is used to detect and receive IR signals. It is designed to be low-cost, low-power, and compact, making it ideal for a wide range of projects and applications. The IR LED Receiver Diode consists of a small photodiode that is housed in a cylindrical package, with leads that are used to connect it to a circuit. When an IR beam is directed at the diode, it generates a small electrical current that can be processed by a microcontroller or other control unit.
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KY-016 Full Color RGB LED Module
$1.09The KY-016 Full Color RGB LED emits a wide range of different colors by mixing red, green and blue light. Compatible with many popular microcontrollers like Arduino, Raspberry Pi and ESP32
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Little Fuse 125V 10A (LFU-10) 10pcs
$13.08Little Fuse 125V 10A is a type of fuse that is used to protect electrical circuits. Fuses are safety devices that are designed to “break the circuit” in case of an overload or short circuit, preventing damage to the electrical system and potentially dangerous conditions. The Little Fuse 125V 10A specification indicates that the fuse is rated to safely interrupt electrical flow in a circuit that has a maximum voltage of 125 volts and a maximum current of 10 amps. This type of fuse is commonly used in household and light commercial electrical systems to protect against overloading and short circuits. The “Little Fuse” brand is a well-known manufacturer of fuses and other electrical protection devices.
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NPN Bipolar Transistor – 2N2222
$1.09The 2N2222 is a type of NPN bipolar transistor, a type of semiconductor device used as an amplifier or switch in electronic circuits. The 2N2222 has three pins: the collector, the base, and the emitter. When a voltage is applied to the base, it controls the flow of current between the collector and emitter. This allows the 2N2222 to act as a switch or amplifier in a circuit. The 2N2222 is a popular choice for electronic projects due to its low cost, ease of use, and versatility.
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One Channel Relay
$5.45The One Channel relay module is suitable for SCM development, home appliance control. It is with 5V~12V TIL control signal which can control DC / AC signal. The module is perfect for common Arduino application. Useful to control a motor, a led strip, or any other module using Arduino. How to use it: Just connect a digital output of your Arduino to your relay module, and you can control a power-demanding appliance with the digital signal provided by your Arduino.
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Piezo Buzzer (Small)
$1.09The Piezo Buzzer (Small) is a compact and convenient audio signaling device that is widely used in a variety of electronic applications. It consists of a piezoelectric element that produces a high-pitched, audible tone when supplied with an electrical voltage. The buzzer is small and lightweight, making it ideal for use in portable and compact electronic devices. The buzzer features two wire leads for easy integration into your circuit, and is compatible with a wide range of voltages and frequencies, making it suitable for use in a variety of projects and applications.
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Potentiometer
$2.18A potentiometer is a manually adjustable variable resistor with 3 terminals. Two of the terminals are connected to the opposite ends of a resistive element, and the third terminal connects to a sliding contact, called a wiper, moving over the resistive element. The potentiometer essentially functions as a variable resistance divider. The resistive element can be seen as two resistors in series (the total potentiometer resistance), where the wiper position determines the resistance ratio of the first resistor to the second resistor. If a reference voltage is applied across the end terminals, the position of the wiper determines the output voltage of the potentiometer.