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Mechanical Endstop Switch Module V1.2 Mechanical Limit Switch CNC 3D printer Mechanical Switch used a lever switch for detection. it detects by lever when it is activated. when the CNC end stop switch is activated, it pulls the signal LOW. this mechanical limit switch also contains LED, this LED will glow up when the switch is activated. this is the best limit switch than the old-style CD ROM audio connector cable. because the mechanical end stop switch uses a standard 4-pin 100 pitch header and accepts a standard. this mechanical switch detects when any stage has reached its minimum or maximum, instead of messing with flags or complicated light beam interruption.
This module allows you to detect when sound has exceeded a set point you select. Sound is detected via a microphone and fed into an LM393 op amp. The sound level set point is adjusted via an on board potentiometer. When the sound level exceeds the set point, an LED on the module is illuminated and the output is sent low. It has working voltage of 3.3-5V.
Monitor DC voltage between 5V and 120V with this simple 2-wire voltmeter
1% tolerance
Working current: <13mA
Refresh rate: 300ms
Reverse polarity protection
Auto ranging 0.1V precision
Size: 48x29x22mm
Hole size: 46x27mm
Operating Temp: -20 – 65
DC only, not for use with AC
Voltage above 132V will damage the unit
6V 60Rpm Geared DC Motor is a mini geared motor with high torque capability despite its small size and because of that it is very suitable for small sized projects that require high torque such as sumo robots. The motor runs at 60rpm at 6V. It is suggested not to run the motor at voltages higher than 6V.
This motor driver expansion board is based on the L293D chip which is designed to drive up to 4 bidirectional DC motors with individual 8-bit speed selection. It can also drive 2 stepper motors (unipolar or bipolar), single coil or double coil, interleaved or micro-stepping. It contains 4 H-bridges which provide up to 0.6 A per bridge (1.2A peak) at voltages from 4.5 V to 36 V. This shield has pull down resistors to keep the motors disabled during power up. It also features a 2-pin terminal block to ensure separate logic and motor external power supplies. This expansion board is compatible with Arduinos Mega, Diecimila, and Duemilanove. This motor driver shield is capable of driving:Four DC motors and two servos, Two DC motors, stepper motor, and two-way servo, Two stepper motors and servos.
Multiturn Variable Potentiometer 10K / Variable Resistor. There are lots of trimpots out there. Some are very large, some so small they require a screwdriver. Here at ELECTRONATION, we just needed a simple one that worked. This 10K trimmable potentiometer has a small knob built right in and it’s breadboard friendly to boot! Perfect for your next LCD contrast adjuster, opamp setting, or volume level. This is 3296W model 103 within the datasheet.
A potentiometer is a manually adjustable variable resistor with 3 terminals. Two terminals are connected to both ends of a resistive element, and the third terminal connects to a sliding contact, called a wiper, moving over the resistive element. The position of the wiper determines the output voltage of the potentiometer.
A potentiometer is a manually adjustable variable resistor with 3 terminals. Two terminals are connected to both ends of a resistive element, and the third terminal connects to a sliding contact, called a wiper, moving over the resistive element. The position of the wiper determines the output voltage of the potentiometer.
DJI now brings out the most cost-effective solution, the NAZA-M Lite flight control system. As the simplified version of NAZA-M, it inherits the high reliability and stability of NAZA-M in a basic package offering a very competitive price. The innovative All-in-One design simplifies installation and saves space and weight. It contains inner damping, controllers, 3-axis gyroscope, 3-axis accelerometer and barometer in its light and small Main Controller. It can measure flying altitude, attitude and therefore can be used for autopilot/automatic control.
The *optional plug and play GPS module (sold separately) will greatly enhance the performance for aerial photography with accurate Position Hold, Return-To-Home and Intelligent Orientation Control functionalities. With the GPS Module, the multi-rotor will have position and altitude locked accurately even in windy conditions. Hovering accuracy is approximately 2.5m horizontal and 0.8m vertical.
The advanced attitude stabilization algorithm not only inherits the outstanding flight stability of DJI products, but also provides excellent maneuverability. It is more flexible and stable, and gives the hobbyists a wonderful flight experience.
MG90S Metal Gear Micro Servo Motor 
MOC3021 Triac Driven Optoisolator 
Mini Electric Drill Machine PCB Drill Grinder Set With Adapter 
