Kereskedelmi, irodai és ipari

 
 
The breadboard breadboard power and market power modules other differences:
1 recessed design, completely without wasting breadboard space .
2.2 channel distribution can be disconnected , you can choose 5V, 3.3V voltage.
3 can be powered via USB and DC power head
 
shiping .onlyp
 
ower modules

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Color: Green
Size : 58 ( mm ) x 35 ( mm )

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TF card MP3 decoder board with 2W power decoding module 3.7-5V mixed mono playback volume memory with memory
 
 
TF card MP3 decoder board without TF card, support to play MP3 music files, is currently testing 16G TF card support, and then a big yet tested
 
3.7 lithium battery or USB 5V to power,
 
 
 
3 Group white box top right corner of the board into three groups touch of a button, the middle of a group to play pause button, press the up and down two sets down song key, press the volume up and down 2 Leader - adjusted.
 
There customer needs its own modified U disk player, please ask for information to the store manager, ability is not strong Oh does not recommend changes to prevent it burning board, change U disk player USB 5V power supply is recommended, because some old U disk is 5V power supply, 3.7V lithium battery voltage is not supported, so the battery, leading to U disk can not be played, as long as the new U disk support 3.7V power supply is normal play.
 
With 2W mono amplifier, power amplifier maximum output 3W 5V supply (recommendation 4 ohm 3W speaker with a small card small speaker on the sound quality is good, sounds great, if that was not enough volume, please directly for 4 Euro 5 watts speaker, loud to scare you, absolutely surprised, hey In other 4 Euro 5 watt speakers, the amplifier chip cooling attention Oh, plus the best heat sink)
 
There are customers to reflect amplifier when playing music, there will be the phenomenon of heat, or amplifier tube amplifier chip fever is normal, then they do not open to the large volume of the amplifier, the speaker output short circuit (resistance 0 ohms) is not going to burn amplifier chip can be assured.
 
There customer need to go back to the board to do the pre-amplifier, power amplifier does not need this board, then go back to their own amplifier, you can press the following modifications, the board amplifier chip (8-pin chip) removed, and then from the Master 4 feet and 6 feet (two feet left and right channel output controller chips), each series with a 104 (or 224) of the capacitor to the input of the amplifier can be (capacitive isolators to prevent the same power supply When burned in the fire, or late-stage master chip amplifier tube), and the remaining one wire from the negative pole to the amplifier input common
 
There customer need to go back to the board modification listen to music with headphones, the board of the amplifier chip (8-pin chip) removed, and then the first 4 feet from the master and 6 feet (about two feet of the master chip channel output), each series with a 104 (or 224) of the capacitor to headphone left and right channels, leaving a line connected to the headset from the negative common terminal
 
Automatic power play
 
Loop with memory function, after the next power continues from the last played tracks from the new play
 
Play. With LED indicator shows
 
PCB board size 34.23MM (about the distance) * 22.33MM (distance from top to bottom) * 1MM (thickness)
 
Appearance maximum size 37.09MM (about the maximum distance) * 22.33MM (maximum distance from top to bottom) * 2.97MM (maximum thickness)
 
3.7V600MA a lithium battery (043,545), fully charged, can be used to open the largest volume of about 3.5 hours, it is power

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13A XE-3 JB-01E Switch Electric Kettle, Thermostat Switch Steam Medium Kitchen Appliance Parts
 

 
1. Parameters:
No.

Parameter

Value
1

Name

Five direction navigation button module
2

The number of IO

7
3

Operating voltage

2.0V-9.0V
4

Size

25mmx41mm
5

Operating temperature

-40 Celsius -85 Celsius
 
 
2. Pin description:
No.

Pin

Function

Remark
1

COM

Common end

VCC or GND connected to the MCU development board
2

UP

Up direction button

Connect to IO pin of the MCU
3

DWN

Down direction button

Connect to IO pin of the MCU
4

LFT

Left direction button

Connect to IO pin of the MCU
5

RHT

Right direction button

Connect to IO pin of the MCU
6

MID

Middle direction button

Connect to IO pin of the MCU
7

SET

Set button

Connect to IO pin of the MCU
8

RST

Reset button

Connect to IO pin of the MCU
 
 

 
74HC4051 CD4051 single 8-channel digitally controlled analog electronic switch Multiplexers
 
 

 
Product Description:
 
A description of
a baby which is a simple water sensor can be used to detect soil moisture when the soil moisture deficit module outputs a high level, and vice versa output low. Use this sensor produced an automatic plant waterer device, so that the plants in your garden without people to manage.
2 adjustable sensitivity blue digital potentiometer adjustment (Figure)
4 Operating voltage 3.3V-5V-
module dual output mode, the digital output is simple, more accurate analog output.
A fixed bolt hole for easy installation
7 small plates, PCB size: 3cm * 1.6cm
8 power indicator (red) and digital switching output indicator (green)
9 comparator LM393 chip, stable
Two small plate interface description (4-wire)
1 VCC external 3.3V-5V
2 GND external GND
3 DO small board digital output interface (0 and 1)
4 AO the small plates analog output interface
Three instructions for use
Soil moisture module is most sensitive to the ambient humidity is generally used to detect the moisture content of the soil.
2 module in the soil humidity less than a set threshold value when the DO port output high, when the when soil humidity exceeds the threshold value is set, the module D0 output low;
3 small plates digital outputs D0 can be directly connected with the microcontroller, microcontroller to detect high and low, and thus to detect soil moisture;
4 small plates digital output DO shop relay module can directly drive the buzzer module, and which can form a soil moisture alarm equipment;
5 small plates analog output AO and AD module connected through the AD converter, you can get more accurate values of soil moisture;

 
 
 
LM386 Audio Amplifier Module 200 Times 5V-12V Input 10K Adjustable Resistance
Description:
· Onboard LM386 Chip
· 20 multiplier benefits circuit design
· on-board speaker wiring Block
· on-board 10K variable resistor, you can adjust the volume of the enlarged
· Onboard power indicator
· the chip pin leads, can be directly input audio signal
· Operating voltage: 5 ~ 12V
 
Package Included:
1x LM386 Audio Amplifier Module
 
 
 
 
 
 
 
 
 

Features: Based on the I2C interface I / O expansion modules, use two I / O scalability eight I / O (up to 8 simultaneous use PCF8574, expanded to 64 I / O)
The most important feature: 1. Support two interface types access target board: Pin or row seat
2. Supports I2C bus cascade (by pin, row seat docking method, which can use multiple I2C modules)
Typical applications: for I / O resources were scarce MCU I / O expansion
The main resource: PCF8574, I2C interfaces, eight parallel
 
 
 
 
 
 
 
 
 
0.8*0.

Product Overview:  
HC-SR505 small body sensing module is based on infrared technology, automatic control products, high sensitivity, high reliability, ultra-small, ultra-low-voltage operation mode. Widely used in various auto-sensing of electrical equipment, especially battery-powered automatic control products.  
 
Technical parameters:  
Operating Voltage Range: DC4.5-20V  
Static current: <60uA  
Output level: High 3.3V / Low 0V  
Trigger: repeatable trigger (default)  
Delay time: Default 8S -30% (can be customized range of a few tenths - tens of minutes)  
PCB Dimensions: 10 * 23mm  
Induction angle: <100 degree cone angle  
Induction distance: 3 meters  
Working temperature: -20 - 80 degrees  
Sensor Lens Dimensions: Diameter: 10mm (default)  
 
Features:  
Automatic induction: to enter the sensing range of the output is high, people leave the sensor range automatically delay off high, output low. Ultra-small size.  
Repeatable trigger: the sensor output high, the delay period, if there is human activity in its sensing range, the output will remain high until people leave after the high variable delay lOW (automatically extended sensor module detects the human body after every activity a delay period, and the last time an event is the starting point of the delay time).  
Wide operating voltage range: the default operating voltage DC4.5V-20V.  
Micropower: quiescent current <50 microamps, especially for battery-powered automatic control products.  
Output high signal: easy docking and all kinds of circuits.  
 
Applications:  
Body induction lamps  
Body sensors toys  
Security Products  
Industrial automation and control  
Auto-sensing of electrical equipment  
Battery-powered automatic control  
 
 
 
Package included:
 
1  x  HC-SR505 Mini sensing module body sensing mode mini-body sensor switch NEW
 
 
 
 
 
 
 
 
 
 
 

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3D printer Stepper Motor Flexible Coupling Coupler /Shaft Couplings 5 mm*8mm**25 mm
 
 
Description:
3D printer Stepper Motor Flexible Coupling Coupler
Size: 5 mm*8mm**25 mm
 
 
Product Included:
Flexible Couplings
 
 
 
 
 
 
 
 
 
 
 

BBS: http://forum.mhetlive.com/ Product Features
Charging voltage: DC 4.5V-5.5V (recommended DC 5V)
Charging current : 0-2.1A
Charging quiescent current: 100uA Full voltage: 4.2V -1% .
Discharge current: 0-3.5A;
Discharge quiescent current: 50uA Discharge efficiency: 96% maximum
Output voltage: 5V Output current: 0-2.1A;
Ambient temperature: -20° to 85° Module with lithium battery protection function (for lithium battery without protection, with protection board) Overcurrent protection (OCP) Overvoltage protection (OVP) Short circuit protection (SCP) Over temperature protection (OTP) Charge and discharge power level 4 interval indication

9V Battery Holder Box.
 
Size: 5.5*2.1 mm.
 
Package Including:
 
1pcs* 5.5*2.1 mm 9V Battery Holder Box DC Plug Socket Battery Holder 
 

 
 
Endstop Mechanical Limit Switches 3D Printer Switch for RAMPS 1.4
 
Description:
tips: in generally , the RAMPS 1.4 3D printer requires three optical switches.
 
Endstop mechanical limit switches use 3D printer switch RAMPS 1.4
 
 
Package Included:
1 X 3D Printer Switch
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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BK8000L Bluetooth Audio expansion board 2.2x2.9cm

 
Place of Origin:China (Mainland)Brand Name:433Mhz and 315mhz. When you place the order .Pls leave message . you want 433mhz or 315mhz
if you don\\\'t have leave message, we will ship 433mhz!!
Model Number:RF wireless receiver module & transmitter module
Shipping list:
10pcs =5 pair

 
 
 
3S 11.1V 12V 12.6V Lithium Battery Capacity Indicator Module Lipo Li-ion Power Level Display Board 3 Series 9-26V
 

Purpose:
Widely used in motor speed detection, pulse counting, position limit and so on.
Module features:
1, the use of imported groove coupler sensor, slot width 5mm.
2, output status indicator lamp output high, output low lights.
3, block, output high; no shelter, output low.
4, the comparator output signal clean, good waveform, driving ability, than 15mA.
5, the working voltage of 3.3V-5V
6, the output format: digital switching output (0 and 1)
7, a fixed bolt holes for easy installation
8, small PCB board size: 3.2cm x 1.4cm
9, using a wide voltage comparator LM393
Module for use:
1. module slot unobstructed, receiver tube conduction module DO output low, when blocked, DO output high;
2, DO output interface can be directly connected to the microcontroller IO port, whether the sensor with barriers, such as the motor speed can be detected with the motor encoder.
2. DO module can be connected to relays, limit switches and other functional composition, and to be connected with active buzzer module, consisting of alarm.
Product wiring instructions:
1, VCC positive power supply 3.3-5V
2, GND power supply is negative
3, DO TTL switching signal output
4, AO this module does not work

 
MH-SR602 MINI Motion Sensor Detector Module SR602 Pyroelectric Infrared PIR kit sensory switch Bracket for Arduino Diy With lens
Working parameters:
Pyroelectric human body infrared sensor module, model: SR-602
Sensing distance: up to 5 meters; recommended 0-3.5M.
Output: high level, H=3.3V, L=0V
Power supply DC: 3.3V-15V
Quiescent current: 20uA
Features and uses:
This module has high sensitivity, fast response, small static power consumption, small size, easy to install, and is installed.
The lens, the pin header has been soldered, and the power supply is provided without debugging. Can be used for body sensor lights, alarms, security,
Access control on-demand imaging, automatic equipment for agriculture, forestry and mining.
Key points:
1. The high level time of the output of this product is adjustable, 2.5 seconds to 1 hour, the output time set at the factory.
It is 2.5 seconds, and you can change one chip resistor if you need to change it. Please read the resistance value corresponding to the typical delay time.
Refer to the relevant form below.
2. Blocking time, 2 seconds, not adjustable.
3. The factory is defined as repeatable trigger and cannot be changed.
4. The supply voltage of this module is 3.3V to 15V, and the limit voltage is 2.8V to 18V.
5. Module output timing is: output high level for 2 seconds after power-on, then go low, enter standby
status. If the delay time is changed, the time when the module outputs a high level after power-on will increase accordingly, which can be understood as
The startup time after entering the normal working state after the electric power will increase.
6. After installing the photosensitive element, it does not work during the day, work at night, does not contain photosensitive components, and works all day ( There are no photodiodes on the module,please purchase separately if needed. Recommended: ordinary F3 photodiode )
It is considered that there is no photosensitive element installed.
7. This module is very sensitive, pay attention to the installation position, try to avoid the heat source radiation source (air outlet / direct sunlight)
8. The sensitivity of this module is adjustable, and you need to change a chip resistor. Please read the relevant table below for details.
grid.
9. When soldering with 220V ordinary soldering iron, it is necessary to unplug the power supply before welding. It is recommended to use
24V low voltage soldering iron, such as domestic white light 936.
10. If you follow the MCU and connect the lamp, please read the reference circuit diagram below.

100% Brand new 
- Material:CNC Aluminium 
- Length:35mm
- Color: Red
- Adjustable type servo arm
- 25T Spine for Futaba JR TP HD Servos
 
Package contains:
1x 25T servo arm
 
 
 
 
 
 

 
 For ESP-01 Esp8266 ESP-01S Model Of The ESP8266 Serial Breadboard Adapter To WiFi Transceiver Module Breakout UART Module

DB9 RS232 Serial to Terminal male Adapter Connector Breakout Board Black Green

CH340 module / USB switch TTL / USB transfer RS232 / exceed PL2303 / STC Downloader / 9 Brush board STC official download chip. Perfectly compatible with all Series MCU STC will not be because of the different drivers that would lead to problems like PL2303 can not download the program. Ultra-stable. 
 
 
1, new original CH340G chips, the chips are STC official recommended USB to TTL chips will not appear due to different drive / different computer as a result of incompatibilities! ! ! 
 
2, high-quality high-grade yellow pin, pin durable than the black market, beautiful; 
 
3, not only has the power light PWR, there TXD and RXD LEDs, whether the product is easy to learn and intuitive to work in the absence of the instrument in the case; 
 
4,3V3 and 5V by a short circuit to take choice; 
 
5, support WINDOWS 98 / ME / 2000 / XP / Server 2003 / VISTA / 
 
Server 2008 / Win7 / Win8 32 Bit / 64
 
 

Módulo de Sensor de humedad del suelo DC módulo Detector de suelo medidor de Sensor de prueba de humedad Sonda de resistencia a la corrosión para Arduino
 
 
 
Descripciones:
 
Voltaje de funcionamiento: DC 3,3-12V
Corriente de funcionamiento: <20mA
Corriente de salida: <30mA
E/S: - DO AO
Dimensiones: 36x15x7mm
 
 
El paquete incluye:
 
1 x módulo Detector de humedad del suelo

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Description:
1. One Channel input: DC 6V - 12V (input voltage must be output voltage higher than 1V or more.)
2. Triple Output: 3.3V ( - 0.05v error), 5.0V ( - 0.05v error), 800mA (load current must not exceed 800ma), 12V (12V input directly to the output)
3. Two sides panel design, layout.
4. Specially designed two pin mounting holes, can be directly fixed to the board extended tunnel experiments;
5. Multiple input and output pin, easy to use and connect;
6. PCB size: 4.5cm*4.5cm
 
 
 
 

 
Made of high quality material and with fine workmanship, these modules are with high strength and durable for long-term use. They are also stable and reliable on performance for professional design. Suitable use for development and application, these digital temperature sensor modules are great for DIY project.
Features
High quality and durable in use
Easy to install and use
Stable and reliable performance
 
shipping  list:  Three color RGB sensor module  x1
 
 
 
 
 

 
 
 
 
 
L9110S DC Stepper Motor Driver Board H Bridge for
Description:
Low quiescent current
Wide supply voltage range: 2.5V-12V
800mA per channel continuous power output capability
Lower saturation voltage
TTL / CMOS compatible output level can be directly connected to CPU
Output built-in clamp diodes for inductive load
Control and drive integrated into a single IC
With pin high-voltage protection
Operating temperature :0-80
Onboard 2 L9110S motor control chip
Module can drive two DC motors or a 4-wire two-phase stepper motor
 
 
Package Included:
1 X L9110S Motor Driver
 
 
 
 

10 K Value Lap is Adjustable Module Adjustable Potentiometer Module
 
 
 
0.47/

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Product Description:
Colour  : Blue
Material : Aluminum alloy 
Inner d1*d2 : 5mm x 8mm
Outer diameter : 14mm
Total length : 25mm
Scwer hole diameter : 4mm
 

Describe：
This module uses 24 high precision A/D converter chip HX711. It is a specially designed for the high precision electronic scale design, with two analog input channel, the internal integration of 128 times the programmable gain amplifier. The input circuit can be configured to provide a bridge type pressure bridge (such as pressure, weighing sensor mode), is of high precision, low cost is an ideal sampling front-end module.
 
1.Two selectable differential input channels
2.On-chip active low noise PGA with selectable gain of 32, 64 and 128
3.On-chip power supply regulator for load-cell and ADC analog power supply
4.On-chip oscillator requiring no external component with optional external crystal
5.On-chip power-on-reset
6.Simple digital control and serial interface: pin-driven controls, no programming needed
7.Selectable 10SPS or 80SPS output data rate
8.Simultaneous 50 and 60Hz supply rejection
9.Current consumption including on-chip analog power supply regulator: normal operation < 1.5mA, power down < 1uA
10.Operation supply voltage range: 2.6 ~ 5.5V
11.Operating Temperature Range:-20 degree ~ 85 degree
 
Including：
1 x HX711 Weighing Pressure Sensor 24-bit Precision A/D Module

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CJMCU-2803 ULN2803A Darlington tube high pressure large current drive
 
 
1.8

 
10 Grid can be remov transparent plastic small box kit storage box jewelry jewelry box electronic components parts finishing bo

 
2 series 7.4V lithium battery protection board 8A working current 15A current limit/Overcharge discharge protection

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Package including:
NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator
 
 
 
 
 
 
 
 
 
 

 
 
 
4 * 4 matrix keyboard microcontroller keyboard the empty PCB board with 16 keys easy to use and affordable external expansion
 
 
According to the views of the majority of Amoy Friends of improvement for this
 
1 2 3 A
4 5 6 B
7 8 9 C
* 0 # D
4 × 4 matrix membrane keyboard
8P DuPont head, pitch 2.54mm, can be inserted in the Pin connection circuit; Peel off the white sticker on the back of the keyboard can be securely affixed to the surface of the chassis

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NRF24L01P Also known as NRF24L01
 
 
1. The real GFSK monolithic transceiver chip
2. Built-in hardware and link layer
3. Automatic response and automatic retransmission function
4. Address and CRC check function
5. Wireless rate: 1 or 2 MBPS
6. SPI interface rate: 0 ~ 8MBPS
7. 125 optional channels work
8. Channel switching time is very short, can be used for frequency hopping
9. Fully compatible with nRF24XX series
10.I/O can accept 5v level of input
11.±60ppm 16MHz crystal
12.Low working voltage: 1.9 ~ 3.6 V
13.The global open ISM frequency band, the maximum 0dbm transmitted power, free license to use.
14.Transmission distance up to 100 meters in outdoor open occasions!
 

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Infrared emission control, also known as infrared emitting diodes, diode class belongs. It can be directly converted into electrical energy near infrared
 
  
Light (black light), and can radiate out of the light emitting device is mainly used in various photoelectric switches and remote control transmitter circuit. Infrared emission control structure, principles and common light-emitting diodes are similar, but different semiconductor materials used. Typically use gallium arsenide infrared emitting diode (GaAs), gallium aluminum arsenic (GaAlAs) and other materials, the use of transparent or light blue, black resin package.
 
Firing distance, launch angle (15 degrees, 30 degrees, 45 degrees, 60 degrees, 90 degrees, 120 degrees, 180 degrees), the light intensity emitted wavelength. The above physical parameters, need to understand its electrical performance parameters: the diameter of the common market, 3mm, 5mm for low-power infrared emission control, 8mm, 10mm for medium power and high-power launch tube. Forward voltage low-power transmitting tubes: 1.1-1.5V, current 20ma, the power of the forward voltage: 1.4-1.65V 50-100ma, high-power launch tubes for the forward voltage:. 1.5-1.9V200-350ma Yu Electronic make 1-10W power infrared emission control can be applied to infrared surveillance lighting. 
 
 

 
DC-DC Boost Module 0.9V ~ 5V to 5V 600MA USB Mobile Power Boost Circuit Board
 
Description:
 
DC / DC boost controller chip onboard ultra-compact PFM control
Enter any DC voltage of 0.9V ~ 5V, can be stable output 5V DC voltage, output current of 500 ~ 600MA with two AA batteries input to a single AA battery-powered output  current 200ma so, for the mobile phone, camera , single-chip, digital products supply. Stable output 5V DC voltage
 
Onboard USB female, can be directly powered USB interface device with USB female versatile
On-board input voltage indicator
PCB size: 34 (mm) x16.2 (mm) ultra-small size, installed in a variety of small equipment
 
 
 
 
 
 
 

Description:
1. has the signal output instructions.
2. single signal output.
3. effective signal output for low level.
4. sensitivity adjustable pure tone ().
5. have the field cuts have signal output
6. circuit boards output switch quantity! (can be directly by SCM)

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Specification:
 
 
chuck is a break out board for  -Nunchuck. Use this shield to achieve communication between nunchuck  without broking the controller Nunchuck. It is grate for DIY projects.
Descriptio
Condition: Brand new
Color: Blue
Material: PCB
Use this shield to achieve communication between nunchuck 
Application: DIY project
Dimensions: 1.02 in x 0.47 in x 0.28 in (2.6 cm x 1.2 cm x 0.7 cm)
 

 
Stepper motor driver board with ULN2003
A, B, C, D four-phase LED indicates the status of the stepper motor work
Stepper motor with a standard interface, when used directly pluggable
Drive Module Board Size:2.8cm x 2.8cm x 2cm
 
 
 
 
 

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Package Included:
1 X GY-BMP280-3.3 Pressure Sensor
 

Best prices!!! Dc power supply module for dc power adapter plate
 

An ambient light sensor simulation light intensity module Visible light sensor
TEMT6000 sensor maximum sensitivity of 570 nm, it has a plus or minus 60 ° wide half Angle of sensitivity.Although the device is sensitive to ambient light, but it inhibits infrared (IR) spectra, which can provide a similar higher visible spectrum response of the "eye".

Esta es una placa de ruptura para el muy práctico multiplexor analógico/Digital de 16 canales/desmultiplexor CD74HC4067.
Este chip es como un interruptor giratorio: enruta internamente el pin común
(COM en el diagrama, SIG en la placa) a uno de 16 Pines de canal (CHANxx).
Funciona con señales digitales y analógicas (el voltaje no puede ser superior a VCC),.
Y la función de conexiones en cualquier dirección.
Para controlarlo, conecte 4 salidas digitales a la dirección de los pines seleccionados del chip (S0-S3),
La dirección y envíelo binaria del canal que desee (consulte la hoja de datos para obtener más detalles).
¡Esto le permite conectar hasta 16 sensores a su sistema usando solo 5 pines!
Dado que el mux/demux también funciona con señales digitales,
Puede utilizarlo para conectar datos de serie de nivel TTL desde o hacia varios dispositivos.
Por ejemplo, puede usarlo para conectar los pines TX de 16 dispositivos a un pin RX en su microcontrolador.
A continuación, puedes seleccionar cualquiera de esos 16 dispositivos para escuchar.
Si desea comunicaciones bidireccionales, puede agregar una segunda placa para enrutar
La línea TX de tu microcontrolador a 16 líneas RX del dispositivo.
Al usar varias placas, puede crear arreglos similares para I2C, SPI, etc.
Los interruptores internos son bidireccionales, soportan voltajes entre tierra y VCC,
Tiene baja resistencia de encendido y baja fuga de apagado, y para evitar diafonía, realice el cambio de rotura antes de hacer.
La placa también rompe el pin de habilitación del chip, que cuando se conduce alto,
Desconectará completamente el pin común (todos los interruptores apagados).

Package includes:
20pcs Voltage Sensor Module

 
 
 
 
 
 
 
Snow/Raindrops Detection Sensor Module Rain Weather Module Humidity For
 
Features:
The item is for robot kit, raindrops, rain sensor, monitoring can be used for a variety of weather conditions, and converted into the number of the reference signal and the AO output.
Product description:
1. The sensor uses the FR-04 high-quality double-sided materials, King Size 5.0 * 4.0CM, and with the surface of the nickel plating treatment, against oxidative, conductivity, superior performance and longevity;
2. The comparator output, the signal is clean, waveform, driving ability over 15mA;
3. Distribution bit to adjust sensitivity;
4. Operating voltage 3.3V-5V
5. The output in the form: digital switching outputs (0 and 1) and analog AO voltage output;
6. A fixed bolt hole for easy installation
7. Voltage: 5V
8. Power indicator, the output signal LED indicator.
9. TTL-level output, TTL output valid signal is low. Driving capability 100MA so, can directly drive relays, buzzer, a small fan, and so on.
10. Sensitivity can be adjusted via potentiometer
11. LED lights up when there is no rain output is high, raindrop up, the output ground level, LED light.
12. Raindrops and control panels are separate, easy to wire leads.
13. A large area of rain board, more conducive to detect rain.
14. Board with positioning holes to facilitate installation
15. Small board PCB size: 3.2cm x 1.4cm
16. Wide voltage LM393 comparator
How to use:
Connected to 5V power supply, the power indicator light, sensor board is not water droplets, DO output is high, the switch lights off, dropping on a drop of water, DO output is low, the indicator light switch,
Brush off the the above water droplets, has returned to output high state. . . .
AO analog output can be connected to the microcontroller AD port to detect the size of the drops in the above rainfall.
DO TTL digital outputs can also be connected to the microcontroller detects whether there is rain.
Connection mode:
1, VCC: positive power supply (3-5V)
2, GND: negative one.
3, DO: TTL switching signal output
4, AO: Analog signal output
Package Including:
100% Brand New
1 x Rain sensing board
1 x Control board
5 x 20cm Dupont Line
 

Specification:
 
This adjustable module uses MP1495 chip, synchronous rectification output, power efficiency of more than 90% , non-commercial similar linear regulated power supply comparable.
 
5-16V voltage input, 1.25V 1.5V 1.8V 2.5V 3.3V 5V output, 3A current output, short circuit point to adjust the output voltage (to avoid the phenomenon that the same type of potentiometer can be adjusted on the market), the default output voltage is 1.25V. Suitable for the replacement of various LCD TV small signal power supply repair, three lines to get power supply repair.