-
A unipolar stepper motor has one winding with center tap per phase. Each section of windings is switched on for each direction of magnetic field. Since in this arrangement a magnetic pole can be reversed without switching the direction of current, the commutation circuit can be made very simple (e.g., a single transistor) for each winding. Typically, given a phase, the center tap of each winding is made common: giving three leads per phase and six leads for a typical two phase motor. Often, these two phase commons are internally joined, so the motor has only five leads.
-
DHT11 digital temperature and humidity sensor is a composite Sensor contains a calibrated digital signal output of the temperature and humidity. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the product has high reliability and excellent long-term stability. The sensor includes a resistive sense of wet components and an NTC temperature measurement devices, and connected with a high-performance 8-bit microcontroller.
-
HX711 is a precision 24-bit analog to-digital converter (ADC) designed for weigh scales and industrial control applications to interface directly with a bridge sensor. The input multiplexer selects either Channel A or B differential input to the low-noise programmable gain amplifier (PGA). Channel A can be programmed with a gain of 128 or 64, corresponding to a full-scale differential input voltage of ±20mV or ±40mV respectively, when a 5V supply is connected to AVDD analog power supply pin. Channel B has a fixed gain of 32.
-
'-The lamp brightness can be adjusted by requirement,it is very to operate. -It can touch in medium protection,such glass,acrylic,plastic,ceramics and so on,which is very safe. -Wide application of voltage range,you can choose arbitrarily between 2.4V to 4.5V. -Anti power and phone interference,the EFT can reach above /-2KV;the touch response sensitivity and reliability will not affected by the close distance or multi-angle mobile phone interference. -Install: Needn’t to touch copper foil directly,the dimming can be processed across acrylic glass(above 3mm) or plastic. -Application:It can control LED module,light and so on.It is available for indoor LED,lighting lamp,DIY automotive lights dimming refit. -Function:Single touch,using the principle of capacitance touch .-The default function is switch,dimming,with brightness memories LED touch dimming.It will light slowly when turn on the lights,and become dark slowly when turn off,which effectively avoid the stimulation to eyes. -Dimming mode:Non-polar PWM dimming. -Wiring method:PCB board(VCC,GND) is power input,(LED , LED-) is connected with the LED lamps of positive and negative level (fingerprint) touch area, also can wire to lead out (the wiring should not be too long), copper skin area should be 2x3cm. With copper foil copper foil board module will side to the shell side.
-
Description: -Brand new Black/White Line Hunting Sensor for Intelligent Car Tracing. -Features VCC/OUT/GND pin connector. -Output electrical level signal: Low level when detecting objects/ high level when no objects/0 or 1 decides if objects exist. -Power by 2.5-12V (cannot over 12V). -Perfect DIY parts for intelligent cars. -Color: Black panel -Working Current: 18-20mA at 5V -Package Dimensions: 77.0 x 49.0 x 12.0 mm -Weight: 5.0g