Kereskedelmi, irodai és ipari

1. Product introduction and application
JDY-31 Bluetooth is based on Bluetooth 3.0 SPP design, which can support Windows, Linux, android data transparent transmission, working frequency band 2.4GHZ, modulation mode GFSK, maximum transmission power 8db, maximum transmission distance 30 meters, support users to modify the device name through AT commands , baud rate and other commands, which are convenient and flexible to use.
2. Product application
JDY-31 is a classic Bluetooth protocol, which can communicate with computers (desktops, notebooks) and mobile phones (android) that support Bluetooth. can be applied to
◆ Windows computer Bluetooth serial port transparent transmission
◆ Android Bluetooth serial port transparent transmission
◆ Smart Home Control
◆ Automotive ODB testing equipment
◆ Bluetooth Toys
◆ Shared power bank, shared weight scale
◆ Medical Instruments

Description:
 
Module function:
This is the I/O extended module, which use for I2C interface, you can use two of the module to extend 8 I/O. Support cascading, and you can use at most 8 modules to extend 64 I/O at the same time. Can be changed the address by set toggle switch
PCB Size: 36 x 16mm/1.41*0.62"
Every 2 seconds, make P0-P7 port output High level, Low level, and put 3 toggle switches to ON, the address of module is 0x27

 Product features (compatible with B, B , B, and A 2)
 
800 x 480 hd resolution, support touch control
Compatible with any versions and can be directly inserted into the tree blackberry pie (raspberries pie 1 generation of type B to the other with HDMI cable)
Compatible with raspberry pie 1 generation Raspbian, Pidora etc system (now compatible with raspberry pie 2 generation Raspbian system)
General HDMI display, not limited to raspberries pie (a resolution requirements)
Used to display only, do not take up any I/O resources (use a touch function, take up the I/O)
Support the backlight control, saves the electricity
Zedoary craft, finely crafted

Feature:
 
Power input:
Motor power supply (VM): 4.5V ~ 36V, can be powered separately
Control power (VIN): 4.5V ~ 9V (10VMAX), can be powered separately
Module provides short-circuit sub (short the VM and VIN), you can easily use one power (must 4.5V ~ 9V) while completing motor drive and control
Logic Operating current Iss: ≤60mA (Vi = L), ≤22mA (Vi = H)
Drive part of the work current Io: ≤1.2A
Maximum power dissipation: 4W (T = 90 ℃)
Control signal input level: High: 2.3V≤VIH≤VIN; Low: -0.3V≤VIL≤1.5V
Working temperature: -25 ℃ ~ 125 ℃
Drive Type: Dual high-power H-bridge driver
ESP12E Dev Kit Control Port: D1, D3 (A motor); D2, D4 (B motor)
Expand two-way motor-driven, two-way direct drive motor
Onboard power switch
Motor power, control power separation; In the experiment, by short-circuiting block the merger,
the VIN and VM short, while power to the motor and the control board
Notice:
When inserted into the ESP-12E module,
please note the direction consistent with an expansion board antenna
The use of short modules that can simultaneously control board and motor.
 
 
 
Package Included:
1 x  L293D Wifi Motor Drive Shield Module For Arduino NodeMcu ESP8266 ESP-12E

1, current sensor chips: ACS712ELC-05B;
 
2, pin 5V power supply, on-board power indicator;
 
3, the module can be measured plus or minus 5 amps, corresponding to the analog output of 185 mV / A;
 
4, there is no the detection current through, the output voltage is VCC / 2;
 
5, PCB board size: 31 (mm) x13 (mm);
 
 
 
1, current sensor chip: ACS712ELC-20A;
 
2, pin 5V power supply, on-board power indicator;
 
3, the module can measure the positive and negative 20 amps, corresponding to the analog output 100mV / A;
 
4, there is no the detection current through, the output voltage is VCC / 2;
 
5, PCB board size: 31 (mm) x13 (mm);
 
 
1.current sensor chips: ACS712ELC-30A;
 
2.Pin 5V power supply, on-board power indicator;
 
3.The module can measure the positive and negative 30 amps, corresponding to the analog output 66mV / A;
 
4.No test current through the output voltage is VCC / 2;
 
5, PCB board size: 31 (mm) x13 (mm);
 

1, current sensor chips: ACS712ELC-05B;
 
2, pin 5V power supply, on-board power indicator;
 
3, the module can be measured plus or minus 5 amps, corresponding to the analog output of 185 mV / A;
 
4, there is no the detection current through, the output voltage is VCC / 2;
 
5, PCB board size: 31 (mm) x13 (mm);
 
 
 
1, current sensor chip: ACS712ELC-20A;
 
2, pin 5V power supply, on-board power indicator;
 
3, the module can measure the positive and negative 20 amps, corresponding to the analog output 100mV / A;
 
4, there is no the detection current through, the output voltage is VCC / 2;
 
5, PCB board size: 31 (mm) x13 (mm);
 
 
1.current sensor chips: ACS712ELC-30A;
 
2.Pin 5V power supply, on-board power indicator;
 
3.The module can measure the positive and negative 30 amps, corresponding to the analog output 66mV / A;
 
4.No test current through the output voltage is VCC / 2;
 
5, PCB board size: 31 (mm) x13 (mm);
 

1, current sensor chips: ACS712ELC-05B;
 
2, pin 5V power supply, on-board power indicator;
 
3, the module can be measured plus or minus 5 amps, corresponding to the analog output of 185 mV / A;
 
4, there is no the detection current through, the output voltage is VCC / 2;
 
5, PCB board size: 31 (mm) x13 (mm);
 
 
 
1, current sensor chip: ACS712ELC-20A;
 
2, pin 5V power supply, on-board power indicator;
 
3, the module can measure the positive and negative 20 amps, corresponding to the analog output 100mV / A;
 
4, there is no the detection current through, the output voltage is VCC / 2;
 
5, PCB board size: 31 (mm) x13 (mm);
 
 
1.current sensor chips: ACS712ELC-30A;
 
2.Pin 5V power supply, on-board power indicator;
 
3.The module can measure the positive and negative 30 amps, corresponding to the analog output 66mV / A;
 
4.No test current through the output voltage is VCC / 2;
 
5, PCB board size: 31 (mm) x13 (mm);
 

Size: length 70mmX width 17mmX height 20mm
Main components: EL817, SRD-DC03V-SL-C
Voltage: DC 3V/3.3V
Controls 10A 250VAC, 10A 30VDC load
Features:
1. With an output signal indicator;
2. The signal input port can be connected to the IO port of the single chip, and the high level signal is driven;
3. Dual power supply selection design has strong anti-interference ability and high reliability of photoelectric isolation protection;
4. With diode freewheeling protection;
5. The response time is less than 20 milliseconds;
6. The relay has a long service life and can be continuously sucked 100,000 times;
7. The external connection adopts the rotary crimping terminal to make the wiring more firm;
8. With fixed mounting holes for easy installation.

 
Purpose:
Light intensity detected light level sensors, optical module Smart car search
Module Features:
1, using the sensitive type photosensitive resistance sensor
2, the comparator output signal clean waveform is good, driving ability, than 15mA.
3, with adjustable potentiometer can adjust the brightness of the light detected
4, Working voltage 3.3V-5V
5, the output format: Digital switching output (0 and 1)
6, with bolt holes for easy installation
7, a small board PCB size: 3.2cm x 1.4cm
8, using a wide voltage LM393 comparator
Module for use
1, the photosensitive resistor module most sensitive to ambient light, generally used to detect the brightness of the ambient light, triggering microcontroller or relay modules;
2, the module brightness of ambient light reach the set threshold, DO-side output high when the ambient light level exceeds the set threshold, DO-ended output low;
3, DO output can be directly connected with the microcontroller through the microcontroller to detect high and low, thereby detecting changes in ambient light intensity;
4, DO OUR outputs can directly drive the relay module, which can be composed of a light control switch.
Product structure and wiring diagram

1.The flame sensor is most sensitive to flame,and it will also respond to ordinary light,generally used in fire alarm and other purposes.
2.A small panel output interface can be directly connected with the microcontroller IO port.
3.The sensor should be kept a certain distance from the flame,so as not to damage the sensor because of high temperature.
4.the test distance for thelighter flame should be 80cm,the larger the flame,the larger the test distance.
5.Small plates analog output mode and the AD conversion process can help get higher accuracy.
 
1.Can detect the flame or the light with the wavelength at the range of 760 nm to 1100 nm.
2.The detection angle is about 60 degrees,extremelty sensitive to the flame spectrum.
3.Sensitivity is adjustable. (shown in blue digital potentiometer)
4.The comparator output with clean signal,good waveform,strong driving ability of more than 15mA.
5.With an adjustable precision potentiometer to adjust the sensitivity.
6.Operating voltage:3.3V-5V.
7.The output form:DO digital switching outputs (0 and 1) and AO analog voltage output.
8.A fixed bolt hole is set for easy installation.
9.Small plates PCB size:3.2cm * 1.4cm.
10.Using LM393 comparator with wide voltage.

pro mini ATMEGA168 chip 3.3V/8M
 
parameter:
 
1. 20 digital input/output ports RX, TX, D2~D13, A0~A5
2. 8 analog input ports A0~A7
3. 1 pair of TTL level serial port transceiver port RX/TX
4. 6 PWM ports, D3, D5, D6, D9, D10, D11
5. Using Atmel Atmega168P-AU/Atmega328P-AU microcontroller
6. Support serial download
7. Support external 3.8V~12V DC power supply
8. Support 12V and below battery power supply
9. Clock frequency 16MHz
10. Size: 33.3*18.0 (mm)
 
 

4-DOF wooden manipulator
Each joint is driven by an SG90 servo
Overall use of wood board materials
Can be controlled with Ard or microcontroller
Weight: 109g
Laser cutting is accurate, wood is lighter

Hot Selling New Infrared IR Wireless Remote Control Module Kits For Arduino Wholesale
Features:
Latest infrared wireless remote control kit consists Mini Slim 38KHz IR remote control and infrared receiver modules, Mini Slim infrared remote control with 17 function keys, firing distances of up to 8 meters, ideal for a variety of devices in the control room. IR receiver module can receive standard 38KHz modulation remote control signal, through programming, you can achieve remote control signal decoding operation, which can produce a variety of remote control robots and interactive works.
Ultra-thin infrared remote control product parameters:
1 Transmission Distance: 8m above (specific and surroundings, the receiver sensitivity and other factors)
2 Effective angle: 60 degrees
3 Sticking Material: 0.125mmPET, the effective life of 20,000 times.
4. Stable quality, cost-effective
5 quiescent current 3-5uA, dynamic current 3-5mA.
#include
int RECV_PIN = 11;
IRrecv irrecv(RECV_PIN);
decode_results results;
void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn(); // Start the receiver
}
void loop() {
  if (irrecv.decode(&results)) {
    Serial.println(results.value, HEX);
    irrecv.resume(); // Receive the next value
  }
}

USB to DIP adapter board Female header straight plug B-type square interface Printer connection data cable

RGB full color LED module
Module parameters:
1.PCB size: 15mm*19.6mm
2.PCB color: black
3. Use 5mm full color super bright LED
4. With current limiting resistor to prevent burning LED
5. Can be connected to various microcontrollers
6. High level LED
7. Working voltage: 3.3V/5V
8. Weight: 4g
9. Can be directly plugged into the For Arduino motherboard, no DuPont line connection required
Shipping list:
Tested RGB module *1

Mini Micro Print USB CABLE 30CM

A small, but mighty power supply. This board was designed to be as small and inconspicuous as possible. Pop in a AAA battery, flip the power switch, and you will have a 5V supply to power your LilyPad circuit. Good up to 200mA. Short circuit protected.
This board has AAA battery clips but can use an input from 1.2V to 5V. Our lithium polymer batteries are a good, rechargeable alternative.
LilyPad is a wearable e-textile technology developed by Leah Buechley and cooperatively designed by Leah and SparkFun. Each LilyPad was creatively designed to have large connecting pads to allow them to be sewn into clothing. Various input, output, power, and sensor boards are available. They're even washable - but be sure to remove the battery!
Note:A portion of this sale is given back to Dr. Leah Buechley for continued development and education of e-textiles.
Package Included:
1 x New LilyPad Power Supply Converter Module AAA Battery Step up to 5V for

1. I believe if we come into contact with this amazing for Arduino then the DS18B20 digital thermometerChips are generally not stranger to it, right! It
enables you to keep abreast of the ambient temperature around you, more importantly, as If you have an idea you can also customize own use for Arduino
DIY a thermometer, put in your bedroom or in the car, Well, let's work together to uncover the mystery DS18B20, and then you You can use it to make
the Kinds of electronic products that match your personality.
2. As in the past the temperature sensor output is analog, we need to add additional A/D And D/A chip into Line conversion, then for Arduino resources
are not abundant external interface is a big challenge at the same time Utilization is not high, then we The new DS18B20 Temperature Sensor Module
for a good solution to this Issues unique bus line And economic characteristics,fully applicable for Arduino platform that allows users to easily set up pass
Sensor networks.
3. Temperature Measurement Range: -55 ° ~ 125 °.
4. Range Accuracy: ±0.5°.
5. Working Power Supply: DC 3 ~ 5V.
6. Measurement results in 9 ~ 12 digital quantity way serial transmission. 
Package included:
1PCS x  For Arduino KY-001 DS18B20 Temperature Sensor Module Measurement Module

100% brand new and high quality
 
Features:
RC absorption circuit module used on protecting the relay or thyristor because it can avoid damage that from inductive electromotive force generated by the inductive load when on or off. Preventing electromagnetic interference and increasing the anti-jamming capability of the microcontroller.
For AC or DC 5 ~ 400V inductive load (less than 1000W), protection relay contacts or thyristor.
RC absorption circuit,absorb induced electromotive force that from inductive load.
With varistor, to prevent excessive fluctuations in voltage or current is too large and resulting in relay contact adhesion.
To provide anti-interference ability of the circuit.
Adopt crimp terminals that make wiring become more convenient.
Instructions for use: This module is suitable for circuits containing inductive loads and switching devices such as relays and thyristors. When used, the two connectors of the module connect to two contacts of the relay, or parallel with the thyristor, to avoid induced electromotive force damage the relay or thyristor.
RC Absorption/Snubber Circuit Module only, other accessories demo in the picture is not included!
 
Specification:
Dimensions: 3.1x1.3cm/1.22x0.51inch

This version of the QRE1113 breakout board features a digital output, using a capacitor discharge circuit to measure the amount of reflection. This tiny board is perfect for line sensing when only digital I/O is available, and can be used in both 3.3V and 5V systems.
The board's QRE1113 IR reflectance sensor is comprised of two parts - an IR emitting LED and an IR sensitive phototransistor. When you apply power to the VCC and GND pins the IR LED inside the sensor will illuminate. A 100Ω resistor is on-board and placed in series with the LED to limit current. The output of the phototransistor is tied to a 10nF capacitor. The faster that capacitor discharges, the more reflective the surface is.
These sensors are widely used in line following robots. White surfaces reflect more light than black, so, when directed towards a white surface, the capacitor will discharge faster than it would when pointed towards a black surface.
The power input and output pins are brought out to a 3-pin, 0.1" pitch header. The board also has a single mounting hole if you want to screw it onto something.
5VDC operating voltage
25mA supply current
Digital I/O compatible
No ADC required
Optimal sensing distance: 0.125" (3mm)
0.3x0.55"
Package include:
1 x sensor module
1x pin

To Specifications / Special Features :
BMP180 is a high precision , small size , ultra-low power pressure sensor can be used in mobile devices
Its performance, absolute accuracy can reach the lowest 0.03hPa, and the power consumption is very low, only 3μA
BMP180 using powerful 8-pin ceramic leadless chip carrier (LCC) ultra-thin package , can be connected directly with a variety of microprocessor via the I2C bus
Main features:
Pressure range : 300 ~ 1100hPa ( altitude 9000 m ~ -500 m )
Power supply voltage : 1.8V ~ 3.6V (VDDA), 1.62V ~ 3.6V (VDDD)
LCC8 package : package leadless ceramic carrier (LCC)
Size : 3.6mmx3.8x0.93mm
Low power consumption : 5μA, in standard mode
High precision: low-power mode , the resolution is 0.06hPa (0.5 meters)
High linearity mode , the resolution is 0.03hPa (0.25 meters)
With temperature output
I2C Interface
Temperature compensation
Lead-free , RoHS compliant
MSL 1 Reaction time : 7.5ms
Standby current : 0.1μA
No external clock circuit
Typical applications:
GPS precision navigation ( dead reckoning , the upper and lower detection
Indoor and outdoor navigation
Leisure, sports and medical health monitoring
Weather Forecast
Vertical speed indicator ( rising / sinking speed )
Fan Power Control

New blue PCB board ULN2003 five line four phase stepper motor drive module drive board
1, board - borne ULN2003A motor drive chip
2. All the pins of the chip have been drawn out to facilitate the use of the connection.
3, pin 5-12V power supply
4, board 4 signal indicator light
4, board XH-5P socket, can be directly connected to the 28BYJ-48 model of the step motor
5, PCB plate size: 40.5 (mm) x21.3 (mm)

GND isnegative,OUN islevel
1,onboardthe LM386 chip
2,200timesgain circuitdesign
3,onboardspeakerterminalblock
4,onboard10K adjustableresistance,youcanadjustthe zoomlevel
5,onboardpowerled
MainPIN6,chiphasraises,youcandirectlyinputaudiosignal
7,workingvoltage:5~12V
418,Boardsize(mm)x13(mm)

Product description
1) AMS117-3.3 board :
AMS1117-3.3 chip
Input voltage range of 4.75V-12V
Output: 3.3 V, 800 mA
2)AMS117-5.0 board :
AMS1117-5.0 chip
Input voltage range of 4.75V-12V
Output: 5.0 V, 800 mA

XK-GK-4010A DC 12V Hand Sweep Sensor Switch Module Short Distance Scan Sensor Board
Description:
Model: XK-GK-4010A
Operating voltage:
Input: 12 V
output: 12 V
Output type: Double output
Detection range: adjustable 10-50 MM
Detection principle: distance
Power load: 36 W
Delayed off time: none
Field of application: DC, constant pressure
Load current: 3A optional
Standby current: 10mA
VIN: 12V
Feature:
The use of electrical appliances, such as small household appliances, KTV VOD system,
Automotive industrial application systems and other electrical devices wide range of guests can accept custom special features;
The sensitivity of the product can be customized, can penetrate plastic, acrylic, glass, ceramic, and other non-metallic medium, stable performance!
Instructions:
AC use: Need to apply reactive rectifier for it is DC, constant pressure.
During installation, make sure that the medium insulation and tactile surface are tightly coupled and fixed!
There shoule no gap! Installed and then power, wait 3 seconds after initialization, it may be normal operation!
2. Recommended method of installation:
The first, the shell design a card slot, the touch button can be put in firmly locked.
The second, the use of hot melt adhesives, the touch button and shell close to the adhesive hot melt can be used to live.
The third, the use of double-sided adhesive, directly touch the stickers inside the shell.

XK-GK-4010A DC 12V Hand Sweep Sensor Switch Module Short Distance Scan Sensor Board
Description:
Model: XK-GK-4010A
Operating voltage:
Input: 12 V
output: 12 V
Output type: Double output
Detection range: adjustable 10-50 MM
Detection principle: distance
Power load: 36 W
Delayed off time: none
Field of application: DC, constant pressure
Load current: 3A optional
Standby current: 10mA
VIN: 12V
Feature:
The use of electrical appliances, such as small household appliances, KTV VOD system,
Automotive industrial application systems and other electrical devices wide range of guests can accept custom special features;
The sensitivity of the product can be customized, can penetrate plastic, acrylic, glass, ceramic, and other non-metallic medium, stable performance!
Instructions:
AC use: Need to apply reactive rectifier for it is DC, constant pressure.
During installation, make sure that the medium insulation and tactile surface are tightly coupled and fixed!
There shoule no gap! Installed and then power, wait 3 seconds after initialization, it may be normal operation!
2. Recommended method of installation:
The first, the shell design a card slot, the touch button can be put in firmly locked.
The second, the use of hot melt adhesives, the touch button and shell close to the adhesive hot melt can be used to live.
The third, the use of double-sided adhesive, directly touch the stickers inside the shell.

XK-GK-4010A DC 12V Hand Sweep Sensor Switch Module Short Distance Scan Sensor Board
Description:
Model: XK-GK-4010A
Operating voltage:
Input: 12 V
output: 12 V
Output type: Double output
Detection range: adjustable 10-50 MM
Detection principle: distance
Power load: 36 W
Delayed off time: none
Field of application: DC, constant pressure
Load current: 3A optional
Standby current: 10mA
VIN: 12V
Feature:
The use of electrical appliances, such as small household appliances, KTV VOD system,
Automotive industrial application systems and other electrical devices wide range of guests can accept custom special features;
The sensitivity of the product can be customized, can penetrate plastic, acrylic, glass, ceramic, and other non-metallic medium, stable performance!
Instructions:
AC use: Need to apply reactive rectifier for it is DC, constant pressure.
During installation, make sure that the medium insulation and tactile surface are tightly coupled and fixed!
There shoule no gap! Installed and then power, wait 3 seconds after initialization, it may be normal operation!
2. Recommended method of installation:
The first, the shell design a card slot, the touch button can be put in firmly locked.
The second, the use of hot melt adhesives, the touch button and shell close to the adhesive hot melt can be used to live.
The third, the use of double-sided adhesive, directly touch the stickers inside the shell.

XK-GK-4010A DC 12V Hand Sweep Sensor Switch Module Short Distance Scan Sensor Board
Description:
Model: XK-GK-4010A
Operating voltage:
Input: 12 V
output: 12 V
Output type: Double output
Detection range: adjustable 10-50 MM
Detection principle: distance
Power load: 36 W
Delayed off time: none
Field of application: DC, constant pressure
Load current: 3A optional
Standby current: 10mA
VIN: 12V
Feature:
The use of electrical appliances, such as small household appliances, KTV VOD system,
Automotive industrial application systems and other electrical devices wide range of guests can accept custom special features;
The sensitivity of the product can be customized, can penetrate plastic, acrylic, glass, ceramic, and other non-metallic medium, stable performance!
Instructions:
AC use: Need to apply reactive rectifier for it is DC, constant pressure.
During installation, make sure that the medium insulation and tactile surface are tightly coupled and fixed!
There shoule no gap! Installed and then power, wait 3 seconds after initialization, it may be normal operation!
2. Recommended method of installation:
The first, the shell design a card slot, the touch button can be put in firmly locked.
The second, the use of hot melt adhesives, the touch button and shell close to the adhesive hot melt can be used to live.
The third, the use of double-sided adhesive, directly touch the stickers inside the shell.

XK-GK-4010A DC 12V Hand Sweep Sensor Switch Module Short Distance Scan Sensor Board
Description:
Model: XK-GK-4010A
Operating voltage:
Input: 12 V
output: 12 V
Output type: Double output
Detection range: adjustable 10-50 MM
Detection principle: distance
Power load: 36 W
Delayed off time: none
Field of application: DC, constant pressure
Load current: 3A optional
Standby current: 10mA
VIN: 12V
Feature:
The use of electrical appliances, such as small household appliances, KTV VOD system,
Automotive industrial application systems and other electrical devices wide range of guests can accept custom special features;
The sensitivity of the product can be customized, can penetrate plastic, acrylic, glass, ceramic, and other non-metallic medium, stable performance!
Instructions:
AC use: Need to apply reactive rectifier for it is DC, constant pressure.
During installation, make sure that the medium insulation and tactile surface are tightly coupled and fixed!
There shoule no gap! Installed and then power, wait 3 seconds after initialization, it may be normal operation!
2. Recommended method of installation:
The first, the shell design a card slot, the touch button can be put in firmly locked.
The second, the use of hot melt adhesives, the touch button and shell close to the adhesive hot melt can be used to live.
The third, the use of double-sided adhesive, directly touch the stickers inside the shell.

Temperature humidity sensor SHT10 SHT11 SHT15 PCB board 2.54MM pitch Adapter plate

1 , the thermal resistance of the module is very sensitive to the ambient temperature , typically for detecting the temperature of the surrounding environment ;
2 , through the potentiometer adjustment, you can change the temperature detection threshold ( ie, control temperature ) , such as the need to control the ambient temperature is 50 degrees , the module in the corresponding ambient temperature to its green light , DO high power output when flat , set the temperature below this value, the output is high , the green light does not shine ;
3, DO output can be directly connected to the microcontroller through the microcontroller to detect high and low , thereby detecting temperature changes in the environment ;
4, DO output of the relay module can directly drive the shop , which can be composed of a thermostat to control the temperature of work -related equipment can also be connected to the cooling fan , etc. ;
5, the temperature detection range of the modules 20 to 80 ° C ;
6 , the module can be replaced with a line of temperature sensors used to control the water temperature , water and the like.
1, using the NTC thermistor sensor , good sensitivity
2 , the comparator output signal is clean, good waveform , driving ability , more than 15mA.
3 , adjust the temperature distribution position detection threshold
4 , the working voltage 3.3V-5V
5, the output format : digital switching outputs ( 0 and 1 )
6 , a fixed bolt holes for easy installation
7 , a small PCB board size : 3.2cm x 1.4cm
8 , using a wide voltage LM393 comparator

Product Feature
The OPT101 is an illuminance photosensor that integrates a photodiode and a specially optimized op amp. The transparent package allows the photodiode to have a larger sensing surface with higher sensitivity and a wide spectral response range (infrared to visible light 300nm-1000nm).
Product Parameter
Working voltage: 2.7 ~ 36V
Working temperature: 0°C～70°C
Photodiode light irradiation area: 5.2mm2
Photocurrent: 0.45A/W (λ = 650nm)
Output voltage ratio: 0.45V/uW
Analog voltage output range: Vs-1.15
Bandwidth: 14KHz
Static power consumption: 120uA
Pin Function
VCC: power supply positive pin
-V: negative supply
-IN: the inverting input of the internal op amp and the negative of the internal photodiode,
Do not connect or apply feedback that is abandoned in the operation
1M: Internal 1MΩ feedback resistor input
OUT: Amplifier output
COM: Internal photodiode positive, generally connected to GND
Note: The module does not solder the CEXT external capacitor and the REXT external resistor, leaving the pad for easy extension.

Mercury switch module KY-017 Mercury Sensor for Arduino diy Starter Kit KY017

Note: We will send according to the voltage you choose to place the order. Don't worry too much about the voltage of the picture and the voltage of the order you placed.
Module parameters:
1. Size: 75mm (length) * 55mm (width) * 19.3mm (height)
2. Weight: 61g
3.PCB color: blue
4. There are 4 fixing screw holes around the board, the diameter of the hole is 3.1mm, which is convenient for installation and fixing.
5. The relay uses high-quality relay, single pole double throw. One common end, one normally open end, one normally closed end
6. Optocoupler isolation, good anti-interference
7. Low level pull-in, high level release. The status indicator is on when it is closed, and it is off when it is released.
8. VCC is the system power and JD_VCC is the relay power. 5V relay is issued by default, just plug in the jumper cap
9. Maximum relay output: DC 30V / 10A, AC 250V / 10A
Wiring instructions:
VCC: system power positive
GND: system power negative
IN1--IN4: relay control port

 
Description
Weight:5 g 
Color: as picture show
Size:40mmx20mm/1.56"x0.79"(inch) (approx)
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. Theinput 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.
Features:
*Two selectable differential input channels
*On-chip active low noise PGA with selectable gain of 32, 64 and 128
*On-chip power supply regulator for load-cell and ADC analog power supply
*On-chip oscillator requiring no external component with optional external crystal
*On-chip power-on-reset
*Simple digital control and serial interface: pin-driven controls, no programming needed
*Selectable 10SPS or 80SPS output data rate
*Simultaneous 50 and 60Hz supply rejection
*Current consumption including on-chip analog power supply regulator: normal operation < 1.5mA, power down < 1uA
*Operation supply voltage range: 2.6 ~ 5.5V
*Operation temperature range: -40 ~ 85°
*This module uses 24 high-precision A / D converter chip hx711, is designed for high-precision electronic scale and design, with two analog channel input, the internal integration of a gain programmable amplifier 128. Input circuit can be configured to provide an electrical bridge bridge voltage (such as pressure, weight) sensor model is an ideal high-precision, low-cost sampling front-end module.