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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Only 1 leftPlay Tronix
Airframe: foam/balsa/corrugated. Components: propeller, DC motor/brushless, servo(s), control horns, pushrods. Electronics: ESC (if brushless), battery. Concepts: lift/drag/thrust, CG/balance.
TowerPro Metal Gear MG90S Mini Digital Servo Motor (180° Rotation)
[Servo Motor] ⚙️ TowerPro MG90S Mini Digital Metal Gear Servo Motor (180°) Metal Gear • Digital Servo • 180° Rotation • High Precision • Ideal for RC & Robotics The TowerPro MG90S Mini Digital Servo Motor is a compact, high-performance 9g metal gear servo designed for precise position control in robotics, RC models, automation, and DIY electronics projects. Equipped with all-metal gears, a digital control circuit, and high positioning accuracy, the MG90S offers greater durability, faster response, and higher torque than standard plastic gear servos. Operating from 4.8V to 6.0V DC, the servo delivers a stall torque of up to 2.2 kg·cm and a rotation angle of approximately 180°, making it ideal for robotic arms, pan-tilt camera systems, RC airplanes, RC cars, boats, educational kits, and embedded control applications. The standard 3-wire JR/Futaba-compatible connector allows direct interfacing with Arduino, ESP32, Raspberry Pi, STM32, and most RC receivers. Its lightweight design, compact dimensions, and excellent holding torque make the MG90S one of the most popular micro servos for hobbyists, students, and professionals alike. ⭐ Features Genuine TowerPro MG90S digital servo Durable all-metal gear transmission Approximate 180° rotation angle High positioning accuracy Fast control response High holding torque Smooth and quiet operation Lightweight and compact design Standard 3-wire servo interface Compatible with Arduino, ESP32, Raspberry Pi and RC receivers Ideal for robotics, RC models and automation projects 📋 Technical Specifications Product Type: Mini Digital Servo Motor Brand: TowerPro Model: MG90S Gear Type: Metal Gear Rotation Angle: Approximately 180° Operating Voltage: 4.8V–6.0V DC Stall Torque: 1.8 kg·cm @ 4.8V 2.2 kg·cm @ 6.0V Operating Speed: 0.10 sec/60° @ 4.8V 0.08 sec/60° @ 6.0V Control Signal: PWM (50Hz Standard Servo Signal) Dead Band Width: 1µs Connector Type: JR / Futaba Compatible Cable Length: Approximately 25cm Dimensions: 22.8 × 12.2 × 28.5 mm Weight: Approximately 13.4g Operating Temperature: 0°C to +55°C These specifications are consistent with the manufacturer's published specifications. 🔧 Applications Suitable for: Arduino Projects ESP32 Projects Raspberry Pi Projects Robotic Arms Humanoid Robots RC Airplanes RC Cars RC Boats Pan-Tilt Camera Systems Automatic Door Mechanisms DIY Electronics Educational Robotics Smart Automation Projects Mechatronics Projects 📦 Package Includes 1 × TowerPro MG90S Mini Digital Servo Motor 1 × Servo Horn Set Single Arm Horn Double Arm Horn Four Arm Horn 1 × Mounting Screw Set ⚠️ Note Operate the servo only within the recommended 4.8V–6.0V DC supply range. For stable operation, use an external regulated power supply when driving the servo from microcontrollers. Product appearance, cable color, or accessories may vary slightly depending on the manufacturing batch. Counterfeit MG90S servos are common in the market. Purchase from trusted suppliers for genuine performance.
SPST Momentary Rectangular Horn Type Push Button Switch – Red
[Mechanical Switches] SPST Momentary Rectangular Horn Type Push Button Switch – Red The SPST Momentary Rectangular Horn Type Push Button Switch (Red) is a durable and reliable momentary push-to-ON switch designed for horn, alarm, buzzer, control, and general-purpose switching applications. The switch completes the electrical circuit only while the button is pressed and automatically returns to the OFF state when released. Its rectangular horn-type button provides a convenient pressing surface, while the red actuator offers high visibility for applications where quick identification of the control is important. The panel-mount design allows easy installation in control panels, vehicles, enclosures, and DIY projects. ⭐ Key Features SPST (Single Pole Single Throw) Momentary push-to-ON operation Spring-return action Rectangular horn-type button Red button Panel-mount design Durable construction Reliable contact performance Easy to operate Suitable for horn and alarm applications 📋 Technical Specifications Product Type: Momentary Push Button Switch Switch Type: SPST Operation: Momentary / Spring Return Contact Action: Push-to-ON Button Shape: Rectangular Horn Type Button Color: Red Mounting Type: Panel Mount Number of Poles: Single Pole Number of Throws: Single Throw Application: Horn / Alarm / Control Contact Type: Momentary Note: The supplied product information does not specify the voltage rating, current rating, dimensions, terminal type, or mechanical/electrical life, so these specifications should be verified against the exact product variant before listing them. 🔧 Applications Vehicle Horn Switch Car Horn Bike Horn Marine Horn Alarm & Buzzer Control Industrial Control Panels Start / Stop / Reset Functions DIY Electronics Projects Consumer Electronics Testing Equipment Temporary Circuit Activation 🛠️ Installation Install the switch through a suitable panel cutout and secure it firmly. Connect the switch terminals according to the required circuit. Since this is a momentary push-to-ON switch, the circuit is active while the button is pressed and returns to its normal OFF state when released. 📦 Package Includes 1 × SPST Momentary Rectangular Horn Type Push Button Switch – Red ⚠️ Precautions Verify the switch's voltage and current rating before connecting a load. Disconnect the power supply before installation or wiring. Ensure terminals and wiring are properly secured. Do not exceed the manufacturer's electrical ratings. For vehicle or industrial applications, use an appropriate relay where the load current exceeds the switch rating. Product images are for illustration purposes only and actual appearance may vary.
Out of stockTDA7492P 50W Wireless Digital Audio Receiver Amplifier Board
[Amplifier Board, Audio Receiver] TDA 7492 P 1 x Amplifier Board 25Wx2 AUX Wireless High Quality This is TDA7492 p based is Class-D audio amplifier. This module has integrated a Bluetooth module, all the used components in the amplifying process, output connectors and control buttons. All you need to do is supply 12V to 36A to it, connect an 8-ohm 50W speaker to each output and connect a Bluetooth device to it and enjoy and control your favourite music wirelessly. In the layout above you can see that the board has 5 control buttons. You can also use those to change the track or control the volume. There is a DIP 2 switches button. Combining the up/down position of each switch you can obtain 4 different filters for the output. In the layout above you can see each combination and the applied gain in each case. This Amplifier has Audio stereo input and connectivity to all versions of the Bluetooth connection, using CSR8635 Bluetooth chip with Bluetooth V4.0. Output Impedance of module is 8 ohms per channel. TDA7492 digital amplifier chip, designed to optimize the circuit layout, the sound quality is very good, big power DIP switches can be adjusted directly after the amp gain more respect and better promote greater damping horn. Features: 25 W + 25 W continuous output power at THD = 10% with VCC= 20 V and RL= 8 Ω Wide-range single-supply operation (8 – 26 V) High efficiency (η = 90%) Four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB and 33.6 dB Differential inputs minimize common-mode noise Standby and mute features Short-circuit protection Thermal overload protection Externally synchronizable
SG90 9g Micro Servo Motor 180° Plastic Gear Servo for Arduino, Robotics & RC Projects
[Servo Motor] The SG90 9g Micro Servo Motor is a lightweight and compact servo designed for Arduino, robotics, RC models, automation systems, and DIY electronics projects. It provides precise position control with approximately 180° rotation and low power consumption. 🔹 Product Description The SG90 9g Micro Servo Motor is one of the most popular servo motors used in electronics, robotics, and educational projects. Featuring a lightweight design and durable plastic gears, it offers accurate position control and reliable operation for a wide range of applications. In addition, the SG90 uses standard PWM control signals, making it compatible with Arduino, ESP32, Raspberry Pi, STM32, and other microcontroller platforms. As a result, it is widely used in robotic arms, obstacle-avoiding robots, RC aircraft, pan-tilt camera systems, and automation projects. Because of its compact size and lightweight construction, the servo can be easily integrated into small projects where space and weight are important factors. Furthermore, it delivers smooth motion and precise angular positioning across its operating range. The SG90 supports approximately 0° to 180° rotation and includes servo horns and mounting accessories for quick installation. Moreover, its low power consumption makes it suitable for battery-powered applications. 🔹 Key Features Lightweight 9g micro servo motor Approximately 180° rotation range Durable plastic gear mechanism Standard PWM control interface Fast response and precise positioning Low power consumption Compact and lightweight design Compatible with Arduino, ESP32, Raspberry Pi, and STM32 Easy installation with included accessories Ideal for robotics and RC applications 🔹 Technical Specifications Model: SG90 Motor Type: Micro Servo Motor Operating Voltage: 4.8V – 6V DC Typical Operating Voltage: 5V DC Stall Torque: 2.5 kg·cm Operating Speed: 0.1 sec / 60° Rotation Angle: 0° – 180° Gear Type: Plastic Gear Control Signal: PWM Connector Type: Standard 3-Pin Servo Connector Cable Length: 15cm Weight: 9g Body Material: Plastic 🔹 Applications This servo motor is suitable for: Arduino projects ESP32 projects Robotics applications Robotic arms RC airplanes RC cars and boats Pan-tilt camera systems Automation projects Educational electronics projects 🔹 Package Includes 1 × SG90 9g Micro Servo Motor Servo Horn Set Mounting Screws