Senzor vlaznosti na kome se trimerom podesi prag na kome menja stanje na izlazu. module can detect ambient humidity 2 adjustable sensitivity adjustment digital potentiometer (shown in blue) 4 Operating voltage 3.3V-5V 5 output in the form of a analog voltage output b digital switch outputs (0 and 1) 6 with fixed bolt hole for easy installation 7 board PCB size: 3cm * 1.6cm Power indicator (red) and digital switching output indicator (green) Nine comparator LM393 chip, stable Three module interface (4 wire) 1 VCC external 3.3V-5V 2 GND external GND DO small plate switch digital output interfaces (0 and 1) AO small board analog output interface Four modules using the instructions A humidity sensitive resistor module on the ambient humidity is the most sensitive, generally used to detect the humidity of the surrounding environment. 2 module in the ambient humidity of less than a set threshold, the DO output port high, when the outside ambient humidity exceeds the set threshold, the module D0 output is low; Board digital outputs D0 can be directly connected with the microcontroller, the microcontroller to detect high and low, and thus to detect the humidity change; 4 board digital output DO OUR relay module can directly drive, which can form a wet control switch; 5 small plates analog output AO OUR AD module connected through the AD converter, you can get more accurate ambient humidity value;

Serijski drajver za 8 LED displeja sa MAX7219 , idealan kada je potrebno ustedeti poneki pin na mikrokontroleru. Features: An integrated serial input / output common-cathode display driver, connecting the microprocessor and 8 bit 7-segment digital LED display, and can also connect a bar graph display or 64 separate LED. With an on-chip type B BCD encoders, multi-channel scanning loop, segment word driver, and a 8 * 8 static RAM for storing each data. Only one external register is used to set the current of each LED segment. Only need three IO ports to drive 8 bit digital tube. A convenient four-wire serial interface can connect all common microprocessor. Each data can be addressed in the update without rewriting all displays. It also allows users to select each data encoding or no coding. The entire device includes a 150 μA low-power shutdown mode, analog and digital brightness control. With a scan-limit register to allow the users to display 1-8 bit data. With an all LED light detection mode. PCV board with four corners of the fixed copper stud, which can effectively prevent short circuit. Specifications: Working Voltage: 5V Item Size: Approx.8.3 * 1.5 * 1.5cm Package Weight: Approx. 18g / 0.6oz Wiring instructions:(a program, for example, you can pick any IO port definition can be modified in the program): VCC→5V GND→GND DIN→P00 CS →P01 CLK→P02 Note: VCC and GND can`t reverse, or it would burn the chip. 51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor, please connect it to other ports data lines.

Dot Led matriks modul 8x8 sa MAX7219. Verzija modula koja moze da se slaze po duzini kao i sirini pa moze recimo da se stave 2x2 modula koji formiraju 16x16 polja, naravno moze i vise u raznim kombinacijama. Modul dolazi kompletno sklopljen i sa kablicima. Product Description MAX7219 is an integrated serial input / output common-cathode display drivers , which connects the microprocessor 7-segment digital LED display with 8 digits , bar graph can also be connected monitor or 64 separate LED. On type B BCD encoder includes an on-chip , multi-channel scanning loop , segment word drive, but also a 8x8 static RAM for storing each data . Only one external register is used to set the segment current for each LED . A convenient four-wire serial interface can connect all common microprocessor. Each data can be addressed in the update does not overwrite all of the display . MAX7219 also allows the user to select each of the data code or not coded . The entire device includes a 150μ A low-power shutdown mode , analog and digital brightness control , a scan-limit register allows the user to 1-8 bits of data , there is an LED light so that all the detection mode . Requires only three IO ports can drive a dot ! No flashing dot matrix display ! Support cascade ! Module Parameters: 1 single module can drive a common cathode 8 * 8 dot matrix 2 module Operating voltage : 5V 3 Module size : 5 cm X 3.2 cm wide X 1.5 cm high 4 holes with four screws , diameter 3mm, can be fixed by using our M3 studs 5 modules with input and output interfaces , support for cascading multiple modules Wiring: 1 is a block left input port, an output port on the right . 2 When control of a single module , simply input port receiving CPU When cascading multiple modules 3 , output and input termination CPU, the input output termination module of the first two modules of the first one , the first two modules of terminating the input of the first three modules , and so on . . . To 51 single example: VCC → 5V GND → GND DIN → P22 CS → P21 CLK → P20

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