Elektronikus összetevők

Features:
Ultra-thin design
Easy to install
Fast Heat dissipation
Smooth and straight aluminum material
All ports and slots of the case can match with Raspberry Pi 4 Computer Model B perfectly
Open case design, you don't need to worry it will effect wifi signal any more
Reinforced aluminum material, lightweight and durable, long-lasting stainles
We use silicon cooling pad (the thickness is only 0.5mm) to touch the shell body to dissipate heat. You can use the CPU grease to relace the silicon colling pad to get better heat dissipation.
 
Dual Fan:
 Noise: 18dB
 Low Power Consumption Design
 Dual Cooling Expericnce, More powerful heat dissipation
 Very Quiet Cooling Fan, get rid of the fan noisy 
 All of the Fans were Tested by Our Engineer, Very Nice Quality Control
 Update Thermal Tape Can Make Sure Best Heat Conduction Effect

 
 
MEGA ProtoShield V3
 
 
 
 
 
 

WEMOS Lite V1.0.0 Wifi Bluetooth Development Board Antenna ESP32 ESP-32 REV1 CH340G MicroPython 4MB Micro USB For Arduino
 
 
Power supply: 2.2V to 3.6V
Operating voltage: 3.3V
Logic level: 3.3V
Mounting holes diameter: 2 holes, 3mm diameter
Integrated 802.11 BGN WiFi transceiver
Integrated dual-mode Bluetooth
4MB Flash Memory
Maximum serial baud rate: 256000bps
Dimensions: 50mm x 25mm (1.97in x 0.98in)

 
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Super small size DC - DC synchronous rectification buck module
 
Areas of application:
Model aircraft dedicated DC - DC step-down module (2 s ~ 5 s polymer li-ion battery), DIY mobile power supply, car power supply, communication power supply equipment, a variety of occasions of volume and weight have strict requirements.
 
Technical parameters:
Model name
Mini - 360 (super small size DC - DC synchronous rectification buck module)
Nature of the module
The isolation step-down
Rectifying way
The synchronous rectifier
The input voltage
4.75 V - 23 V
The output voltage
1.0 V - 17 V
The output current
Peak 3 A and 1.8 A long time
Conversion efficiency
96% (highest)
Switching frequency
340 KHZ
The output ripple
30 mv (light)
Load regulation
Plus or minus 0.5%
Voltage regulation
Plus or minus 2.5%
Working temperature
- 40 to 85
The peripheral size
17 * 11 * 3.8 (length * width * height) (mm)
 
Features: use a body shaping power inductor and synchronous rectifier control chip, a smaller, more efficient.

*Completely solve the hot bed power is too large and the load current issue
 
*Under the premise of normal cooling, it work stable under I(Max)=20A,
  the current must not exceed 20A  while  the process working
 
*If you need anything greater or equal to 15A this module is a must! For example,
 if your total power usage is 240W and you have 12V power supply,  then it means at least   20A is needed (20X12=240W).
 
*As ChiTu controller board is only capable of 15A this setting will not work. To make it work,
  you need this extra power module.
 
*Dimensions: 60*50mm
 
 

*Completely solve the hot bed power is too large and the load current issue
 
*Under the premise of normal cooling, it work stable under I(Max)=20A,
  the current must not exceed 20A  while  the process working
 
*If you need anything greater or equal to 15A this module is a must! For example,
 if your total power usage is 240W and you have 12V power supply,  then it means at least   20A is needed (20X12=240W).
 
*As ChiTu controller board is only capable of 15A this setting will not work. To make it work,
  you need this extra power module.
 
*Dimensions: 60*50mm
 
 

1.Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference.
2.This protuct does everything for you, and can be easily interfaced with any microcontroller,
even one without an analog input.
3.This breakout board has the chip itself, a 3.3V regulator with 10uF bypass capacitors and level shifting circuitry,
4.Comes with a 2 pin terminal block (for connecting to the thermocouple) and pin header (to plug into any
breadboard or perfboard).
 
Description
 
1. measurement temperature range: minus 200 degrees Celsius to 1350 degrees Celsius above zero
2. SPI interfaces, high-speed transmission
3. the input voltage is 3-5v DC
4. direct digital output temperature value, no amplifiers, no ADC
5. 14-bit resolution, 0.25 degree temperature accuracy
Note
 
1.Works with any K type thermocouple
2 K thermocouples have about ±2°C to ±6°C accuracy
4.Internal temperature reading
5.3 to 5v power supply and logic level compliant!
6.SPI data output requires any 3 digital I/O pins.

1.Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference.
2.This protuct does everything for you, and can be easily interfaced with any microcontroller,
even one without an analog input.
3.This breakout board has the chip itself, a 3.3V regulator with 10uF bypass capacitors and level shifting circuitry,
4.Comes with a 2 pin terminal block (for connecting to the thermocouple) and pin header (to plug into any
breadboard or perfboard).
 
Description
 
1. measurement temperature range: minus 200 degrees Celsius to 1350 degrees Celsius above zero
2. SPI interfaces, high-speed transmission
3. the input voltage is 3-5v DC
4. direct digital output temperature value, no amplifiers, no ADC
5. 14-bit resolution, 0.25 degree temperature accuracy
Note
 
1.Works with any K type thermocouple
2 K thermocouples have about ±2°C to ±6°C accuracy
4.Internal temperature reading
5.3 to 5v power supply and logic level compliant!
6.SPI data output requires any 3 digital I/O pins.

 
5V 1 Channel SSR G3MB-202P Solid State low Relay Module 240V 2A Output with Resistive Fuse For Arduino
Description:
Size: 25 * 34 * 25 (L * W * H) Weight: 13g
Input Power: 5V DC (160MA)
Input control signal voltage:
(0-1.5V state low relay ON)
(2.5-5V state low relay OFF)
Voltage Current: 12.5mA
Trigger Voltage:0-1.5V
Trigger Current:2mA
Voltage:5V
Quiescent Current:0mA
Module interface:
Input section:
DC : positive power supply (by relay voltage power supply)
DC-: connect power negative
CH: Relay module signal to trigger the end (low to trigger effective)
NOTE: Power must be DC Voltage, voltage must be consistent with the relay voltage
Package Included:
1 X 5V  Solid State Relay Module
 
 

 
5V 1 Channel SSR G3MB-202P Solid State low Relay Module 240V 2A Output with Resistive Fuse For Arduino
Description:
Size: 25 * 34 * 25 (L * W * H) Weight: 13g
Input Power: 5V DC (160MA)
Input control signal voltage:
(0-1.5V state low relay ON)
(2.5-5V state low relay OFF)
Voltage Current: 12.5mA
Trigger Voltage:0-1.5V
Trigger Current:2mA
Voltage:5V
Quiescent Current:0mA
Module interface:
Input section:
DC : positive power supply (by relay voltage power supply)
DC-: connect power negative
CH: Relay module signal to trigger the end (low to trigger effective)
NOTE: Power must be DC Voltage, voltage must be consistent with the relay voltage
Package Included:
1 X 5V  Solid State Relay Module
 
 

 
5V 1 Channel SSR G3MB-202P Solid State low Relay Module 240V 2A Output with Resistive Fuse For Arduino
Description:
Size: 25 * 34 * 25 (L * W * H) Weight: 13g
Input Power: 5V DC (160MA)
Input control signal voltage:
(0-1.5V state low relay ON)
(2.5-5V state low relay OFF)
Voltage Current: 12.5mA
Trigger Voltage:0-1.5V
Trigger Current:2mA
Voltage:5V
Quiescent Current:0mA
Module interface:
Input section:
DC : positive power supply (by relay voltage power supply)
DC-: connect power negative
CH: Relay module signal to trigger the end (low to trigger effective)
NOTE: Power must be DC Voltage, voltage must be consistent with the relay voltage
Package Included:
1 X 5V  Solid State Relay Module
 
 

 
 
Specification:
Note:
1. \"LIGHT\" linked with GND, the backlight to be lit.
2. Need you to compress the screen and PCB tighter, might got loose after the delivery.
3 Use a 3.3V controller, otherwise the display could be quite vague.
LCD5110 Module: 
Power supply voltage:2.7V-3.3V,5V is OK,but part of the screen becomes black when tested?
Data interface level:2.7-5V?
Backlight power supply voltage:highest 3.3V?
Module size:43.6mm x 43.1mm(width X height)?
Installation diameter:2mm?
Backlight:White
Document for Download:Data
1RST--------- reset?
2CE------------chip selection?
3DC-----------data/commands choice?
4DIN-----------serial data line?
5CLK------------serial Clock Spee
63.3V------------VCC?
7LIGHT--------- backlight control terminal?
8GND-----------power negative
Features:
84 X 84 dot matrix LCD,can show 4 lines of characters
Use serial interface communicate with the master processor,the number of interface signal line reduced greatly, only 8 signal lines including power and GND.Support different types of MCU,such as the SPI,MCS51 serial mode 0 of AVR.Transfer rate up to 4Mbps,can full speed write display data without waiting time.
Can use the conductive glue to connect the module with the printed board,without connecting cable.The metal hooks on the module can fix the module n the printed board,which is very easy to install and replace.
LCD controller/driver chip has been bound to LCD chip,the volume of LCD is small
Low power supply,the working current in normal situation is lower than 200A,and has power-down mode
Shipping Included:
1PCS*for Nokia 5110 LCD Disply Module
 

 Package Included:
1 x  15CM PCB RULER
1 x  20 CM PCB RULER
1 x  25 CM PCB RULER

 Package Included:
1 x  15CM PCB RULER
1 x  20 CM PCB RULER
1 x  25 CM PCB RULER

 Package Included:
1 x  15CM PCB RULER
1 x  20 CM PCB RULER
1 x  25 CM PCB RULER

 Package Included:
1 x  15CM PCB RULER
1 x  20 CM PCB RULER
1 x  25 CM PCB RULER

Description:
 
This is a set of transmitter and receiver in one of the photoelectric sensor. The detection distance can be adjusted upon request. The sensor has a detection distance and the visible light interference, cheap, easy to assemble, easy to use features of robot obstacle avoidance, and assembly line piece can be widely used in many occasions.
Electrical Characteristics:
U: 5VDC
I: The 100mA
Sn :3-80CM
Size:
Diameter: 17MM
Sensor length: 45MM
Lead Length: 45CM
Applications:
A production line goods automatic counting device
2, multi-functional reminder
3, the maze robot
Red: connected 4.5-5V power supply high
Yellow: connected microcontroller output TTL level to the microcontroller
Green: GND 0V power low
 
Photoelectric sensor (photoelectric switch) NPN normally open
Model: E18-D80NK the.
The technical parameters of the photoelectric switch E18:
1, the output current, output, DC / SCR / Relay Control: 100mA/5V supply
2 Current consumption DC <25mA
3, response time <2ms
4, point angle: more than15 °, the effective distance is adjustable from 3-80CM
5,To detect objects: a transparent or opaque body
6, the working environment temperature: -25 °C ~ 55 °C
7, the standard detection object: sunlight 10000LX is the following incandescent 3000LX below
8, Case Material: Plastic
 
 
 
 
 
 
 

Description:
 
This is a set of transmitter and receiver in one of the photoelectric sensor. The detection distance can be adjusted upon request. The sensor has a detection distance and the visible light interference, cheap, easy to assemble, easy to use features of robot obstacle avoidance, and assembly line piece can be widely used in many occasions.
Electrical Characteristics:
U: 5VDC
I: The 100mA
Sn :3-80CM
Size:
Diameter: 17MM
Sensor length: 45MM
Lead Length: 45CM
Applications:
A production line goods automatic counting device
2, multi-functional reminder
3, the maze robot
Red: connected 4.5-5V power supply high
Yellow: connected microcontroller output TTL level to the microcontroller
Green: GND 0V power low
 
Photoelectric sensor (photoelectric switch) NPN normally open
Model: E18-D80NK the.
The technical parameters of the photoelectric switch E18:
1, the output current, output, DC / SCR / Relay Control: 100mA/5V supply
2 Current consumption DC <25mA
3, response time <2ms
4, point angle: more than15 °, the effective distance is adjustable from 3-80CM
5,To detect objects: a transparent or opaque body
6, the working environment temperature: -25 °C ~ 55 °C
7, the standard detection object: sunlight 10000LX is the following incandescent 3000LX below
8, Case Material: Plastic
 
 
 
 
 
 
 

 
DESCRIPTION
This 40pin Cable For raspberry pi model B . Suit for T- plus breakout and breakout.
Length:20CM
'

 
Smallest SIM800L GPRS GSM Module MicroSIM Card Core BOard Quad-band TTL Serial Port
SIM900 GPRS/GSM Shield Development Board Quad-Band Module For Arduino Compatible
US 14.38 / piece /lot 1
SIM800C module SMS data can be used instead of global SIM900A development board
US 9.9 / piece /lot 1
New SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board Antenna Tested Worldwide Store
US 10.15 / piece /lot 1
SIM800L V2.0 5V Wireless GSM GPRS MODULE Quad-Band W/ Antenna Cable Cap
US 7.26 / piece /lot 1
Quad-Band Quad Band SIM800L GPRS Module Bomb Slot Automatic MicroSIM Card
US 6.26 / piece /lot 1
Smallest SIM800L GPRS GSM Module MicroSIM Card Core BOard Quad-band TTL Serial Port with the antenna
US 4.1 / set /lot 1
SIM800A Kit Wireless Extension Module GSM GPRS STM32 Board Antenna Tested Worldwide Store more than 900A
US 9 / piece /lot 1
SIM800C GSM GPRS module STM32 microcontroller 51 equipped with Bluetooth and high- TTS
US 4.25 / piece /lot 1
 
Description:
Chip: SIM800L
Voltage: 3.7-4.2V
Support networks: China Mobile, China Unicom and global quad-band network
Module size: 2.5cmx2.3cm
TTL serial port for serial port, you can link directly to the microcontroller. No need MAX232
Power module automatically boot, homing network
Onboard signal lights all the way . It flashes slowly when there is a signal, it flashes quickly when there is  no signal
Package Included:
1 X SIM800L GPRS GSM Module
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2.98

Product Features:
Wide voltage power supply (6 ~ 30V) supports micro USB 5.0V power supply, easy to use;
The interface is clear and simple, powerful, easy to understand, meet almost all your needs;
There is a key stop function (STOP key), with reverse polarity protection, reverse polarity does not burn;
Increase the sleep mode, it enables, without any operation within 5 minutes, turn off the monitor automatically; any key to wake up;
You can set a different OP, CL, LOP parameters, which are independent of each other, were saved;
All setup parameters are saved automatically power down.
 
Product parameters:
Operating voltage: 6--30V support micro USB 5.0V power supply
The trigger source: high trigger (3.0V-24V) signal with no common ground system to improve anti-jamming capability of the system (also self-shorting common ground)
Output capability: You can control the DC or AC within 30v 5A within 220v5A
Quiescent Current: 20mA Operating Current: 50mA
 Timing range: 0.1 seconds -999 minutes continuously adjustable;
Availability: more than 10 million times;
                       Working temperature: -40-85 Celsius ; 
                        size: 6.2 * 3.8 * 1.7cm
with optocoupler isolation, enhanced anti-jamming capability, industrial grade circuit boards, set the parameters after power failure memory forever.
Special Note: The relay outputs are passive contact, uncharged output to control a line-off role.
 
Product Manual:
 
Operating mode:
P1: After the trigger signal, the relay is turned OP time, and then disconnect; in the OP time, as follows
P1.1: Invalid signal triggered again
P1.2: Re-timing signal is triggered again
P1.3: Reset signal is triggered again, the relay off, stop the clock;
P-2: to the trigger signal, the relay after time off CL, OP relay conduction time, after the counting is finished, disconnect relay;
P3.1: After the trigger signal to the relay turned OP time, relay off CL time, then the operation cycle, to signal to the relay off, stop the clock once again within the loop; cycles (LOP) can be set;
P3.2: After power without triggering signal, the relay is turned OP time, relay off CL time, cycle the operation; cycles (LOP) can be set;
P-4: signal holding function if there is a trigger signal timing is cleared, the relay remains on; when the signal disappears, after timing OP disconnect relay; timer period, then there is a signal, the timing is cleared;
Timing setting:
After setting the parameter values in the mode selection screen by a short press STOP button, select the time range;
XXX decimal point bits, timing range: 1 second to 999 seconds
XX.X decimal point in ten, Timing range: 0.1 seconds to 99.9 seconds
X.X.X. decimal full brightness, Timing range: 1 minute to 999 minutes
For example, you want to set up OP is 3.2 seconds, then move the decimal point to ten, the digital display 03.2
Parameter Description: OP-time, CL off time, LOP cycles (1-999 times, "---" represents infinite loop)
These parameters are independent of each other, but each of these common mode parameters, for example, P1.1 set OP-time is 5 seconds, the user wants to switch to P1.2 mode, then enter P1.2 set the appropriate parameters, OP It will be five seconds;
In the main interface (display 000) Press SET button will display OP (CL, LOP) and the corresponding time XXX;
If only OP mode (such as the mode P1.1, P1.2, P1.3) time, then press SET button will display only the OP and the corresponding time;
If the pattern has OP, CL, LOP (such as the mode P3.1, P3.2) then press the SET button OP and the corresponding time, CL and the corresponding time, LOP and the corresponding number will be displayed;
In the set mode, the main interface parameters by a short press the SET button can easily see the current mode set in, very convenient!
 
Parameter Settings:
 
First, determine the operating mode of the relay;
The mode of operation of the relay, in the main interface (when the module is powered on, flashes the current work mode (P1.1 default mode), then enter the main interface) "long press SET button for 2 seconds after the release "to enter mode selection screen by press UP, DOWN buttons to select the mode to be set (P1.1 ~ P-4);
 After selecting the mode to be set (for example, P3.2) Press SET key to set the appropriate parameters, then the parameter to be set flashes (OP-time, CL off time, LOP cycles ( "- - "represents infinite loop)) by UP, DOWN to adjust the value, support long press (rapid increase or decrease) and press (increase or decrease one unit); setting the parameter value by a short press STOP button to select the decimal point position, select time range (corresponding time of 0.1 seconds to 999 minutes); short press sET key to set the next parameter of the current mode, the process above;
After setting the parameters of the selected mode is good, press the SET button for 2 seconds after release, currently set mode will flash, and then return to the main screen, set the parameters of success is very simple!
The main interface: In the relay does not work status display "000" (no decimal point), with a decimal point under relay state, very clear!
Mode selection screen: Long press SET to enter, after setting is completed, press SET key to exit and return to the main interface is very simple!
 
STOP key functions:
 
Relays enable mode:
ON: inner OP-time relay allows conduction;
OFF: relay prohibit conduction is always closed;
In the main interface, short press the STOP button to switch between ON and OFF, the current in which the state will flash, and then return to the main screen. (This feature is an emergency stop function, a key disconnect relay closed)
Sleep mode:
C-P Sleep mode: five minutes without any operation, the digital display automatically turns off, the normal operation of the program;
O-d normal mode: digital display always open;
Press STOP button for two seconds after the release, to switch C-P and O-d state, in which the current state of flashes and then return to the main screen.
 
 
 

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Package Included:
1 * Acrylic Case

When the DC terminal has power, it is preferred to supply power to the load.
When the DC terminal has power, connect the battery to charge (the specific parameters are determined by the module itself)
Automatically switch battery to power the load when there is no power at the DC terminal
When the DC terminal has power, the battery is charged. It has nothing to do with this module. (The battery can be powered off for a long time when the DC terminal is connected, so you need to know your own parameters to select the power supply.)

CP2102 USB TO TTL USB TO serial port module UART STC downloader
Fact (very important) :
TXD: sending end, generally represented as its own sending end, normal communication must be connected to the RXD of another device.
RXD: the receiving end, which is usually represented as its own receiving end. In normal communication, it must connect to the TXD of another device.
Normal communication when the TXD itself is always connected to the device RXD!
Self income: Normal communication TXD RXD connect other devices, so if you want to receive their data, as the name implies, is receiving themselves to send data, is directly connected to the RXD TXD itself, that is, itself, used to test whether the sending and receiving of normal is fast and simple test method, when a problem first do this test to determine whether the product failure. Also called loopback test.
Level logic:
TTL level: Data representation is usually binary. It is stipulated that 5V is equivalent to logical "1" and 0V is equivalent to logical "0". This is called TTL signal system and is positive logic
RS232 level: -12v to -3V, equivalent to logic "0", 3V to 12V logic level, equivalent to logic "1", is negative logic
Product description:
1. The main chip is CP2102, and the virtual serial port is generated after the driver is installed
2, USB power, the outlet port includes 3.3V (<40mA), 5V, GND, TX, RX, signal pin level is 3.3V, positive logic
3, onboard state indicator, transceiver indicator, the correct installation of the driver after the state indicator light will be steady on, transceiver indicator in communication will blink, the higher the baud rate, the lower the brightness
4, support from 300bps to 1Mbps baud rate
5, communication format support: 1) 5,6,7,8 data bits; 2) support 1,1.5,2 stop bits; 3) odd,even,mark,space,none
6. Supported operating system: Windows Vista/XP/Server 2003/200,Mac OS-X/OS-9,Linux
7, USB head for the male head, can be directly connected to the COMPUTER USB port
8. SMT components are produced by SMT process with stable quality
9, without USB head volume :(mm)

CP2102 USB TO TTL USB TO serial port module UART STC downloader
Fact (very important) :
TXD: sending end, generally represented as its own sending end, normal communication must be connected to the RXD of another device.
RXD: the receiving end, which is usually represented as its own receiving end. In normal communication, it must connect to the TXD of another device.
Normal communication when the TXD itself is always connected to the device RXD!
Self income: Normal communication TXD RXD connect other devices, so if you want to receive their data, as the name implies, is receiving themselves to send data, is directly connected to the RXD TXD itself, that is, itself, used to test whether the sending and receiving of normal is fast and simple test method, when a problem first do this test to determine whether the product failure. Also called loopback test.
Level logic:
TTL level: Data representation is usually binary. It is stipulated that 5V is equivalent to logical "1" and 0V is equivalent to logical "0". This is called TTL signal system and is positive logic
RS232 level: -12v to -3V, equivalent to logic "0", 3V to 12V logic level, equivalent to logic "1", is negative logic
Product description:
1. The main chip is CP2102, and the virtual serial port is generated after the driver is installed
2, USB power, the outlet port includes 3.3V (<40mA), 5V, GND, TX, RX, signal pin level is 3.3V, positive logic
3, onboard state indicator, transceiver indicator, the correct installation of the driver after the state indicator light will be steady on, transceiver indicator in communication will blink, the higher the baud rate, the lower the brightness
4, support from 300bps to 1Mbps baud rate
5, communication format support: 1) 5,6,7,8 data bits; 2) support 1,1.5,2 stop bits; 3) odd,even,mark,space,none
6. Supported operating system: Windows Vista/XP/Server 2003/200,Mac OS-X/OS-9,Linux
7, USB head for the male head, can be directly connected to the COMPUTER USB port
8. SMT components are produced by SMT process with stable quality
9, without USB head volume :(mm)

This is an open-source code base and Simple i / o platform, and with the use of a similar java, C language development environment. So you can quickly use the language with Flash or Processing ... and other software to make interactive works . Can be used to complete the development of electronic components such as Switch or Sensors or other controllers , LED, stepper motor or other output device . You can also operate independently as a software platform that can communicate with , for example , said : flash processing Max / MSP VVVV or other interactive software ... to develop an open-source IDE interface is based on the principle that allows you to download free of charge to develop more surprising interactive work .
 
Multi-function Shield has the following characteristics:
1 , with the market , 2009 UNO LENARDO 2560 controller seamlessly mainstream
2,4 -way LED indicator ( LED indicator to know the importance , in the actual doing projects , with this indicator can be used directly working status LED indicates the procedure to facilitate debugging.
3, DS18B20 temperature sensor interface that can be done to measure the temperature of the experiment , this price does not include the DS18B20 Oh, needed another shot .
4, LM35 temperature sensor interface that can be done to measure the temperature of the experiment , this price does not include LM35 Oh, needed another shot .
5,3296 precision adjustable potentiometer, analog input port ( can be used for controlling LED brightness, turn the steering angle , the digital voltage, etc. )
6 integrated infrared receiver that can fit any infrared remote control experiments , the price also does not include the integrated receiver and needed another shot .
7 , four digital tube ( using 74HC595 driver provincial IO learning SPI), you can do digital display experiment ( can display temperature , voltage, counter value , etc. ) .
8 , three separate buttons, a reset button , the button can do experiments ( HMI ) .
9 , the buzzer sound can be used for experiments . ( Can call the police , pronunciation , etc. )
10 , Bluetooth, wireless interfaces, voice module , voice recognition module can be used for wireless communication experiment
11 , servo interface, easy to drive servos
12 , infrared detection interface, easy and infrared docking realization of human traffic statistics , etc.
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
USB to RS485 Converter Adapter
USB connector: to your PC
RS485 connector: to your RS485 device
No need external power, powered by USB port
Fully compliant USB 2.0 standard , backward compatible with USB1.1
Specification:
Support System: Windows XP , Vista, Windows 7 , Linux , MacOS , and WinCE5.0 drive
Supports baud rate range : 75bps - 115200bps , up to 6Mbps
Work temperature range: -40°C ~ 85°C
Communication distance :1200m(max)
Dimension:6.1x1.6x1.3cm
Color: Black
Applications:
All kinds with RS485 port device parameter settings , data communication
Short distance , such as parameter settings of the computer peripheral equipment , the use of common data lines can be .
• LED display of communication data
• Machine PLC data reading and writing
• Monitoring data read and write , and PTZ control
• centralized control of household electrical appliances
• Access Control System ; card
• a variety of industrial automation ; instrumentation
• Parking ; bus fees
• Dining Hall ; staff attendance
• highway toll station; ATM machine
Packing
USB to RS485 Converter x 1
 
 

Description:
 
 
The INA3221 is a three-channel, high-side current and bus voltage monitor with an I2C- and SMBUS-compatible interface. The INA3221 monitors both shunt voltage drops and bus supply voltages, in addition to having programmable conversion times and averaging modes for these signals. The INA3221 offers both critical and warning alerts to detect multiple programmable out-of-range conditions for each channel.
 
The INA3221 senses current on buses that can vary from 0 V to 26 V. The device is powered from a single 2.7-V to 5.5-V supply, and draws 350 µA (typ) of supply current. The INA3221 is specified over the operating temperature range of –40°C to 125°C. The I2C- and SMBUS-compatible interface features four programmable addresses.
 
 
Features
 
Senses Bus Voltages From 0 V to 26 V
Reports Shunt and Bus Voltage
High Accuracy:
Offset Voltage: ±80 µV (max)
Gain Error: 0.25% (max)
Configurable Averaging Options
Four Programmable Addresses
Programmable Alert and Warning Outputs
 
Power-Supply Operation: 2.7 V to 5.5 V

PC817 4 Channel Optocoupler Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Module PC 817

Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.
     Features:
     100% Brand New.
    Size: 48mm x 29mm x 26mm.
    Display color: Red & Blue LED (dual display).
    Display: 0.28" LED digital.
    Operating voltage: DC 4.5 ~ 30V.
    Measure voltage: DC 0 ~ 100V.
    Minimum resolution (V): 0.1V.
    Refresh rate: ≥500ms / times.
    Measure accuracy: 1% (± 1 digit).
    Minimum resolution (A): 0.01A.
    Operating Current: <20mA.
    Measure current: 10A (direct measurement, built-in shunt).
    Operating temperature: -10 to 65°c.
    Operating Humidity: 10 to 80% (non-condensing).
    Mounting cutout: 45.5mm x 26.5mm.
Package Content:
1 x DC 0-100V Voltmeter Ammeter  

Description:
Characteristic:
(1) receiver sensitivity reach -116dBm;
(2) Operating frequency:433.92 MHz;
(3) Power supply voltage input range: 3V-5.5V;
(4) Low power consumption, 3.3V @ 433.92MHz, 6.0mA
(5) Power Enable mode power consumption can be done lowest 50nA;
(6) has an analog RSSI signal strength level output;
(7) Good selectivity and spurious radiation suppression, and easy through CE / Fcc international certification;
(8) Good local oscillator radiation suppression, multiple receiver modules to work together (ie, more than single income) and will not interfere with each other, used together does not affect the receiving distance.
(9) Temperature range: -40-85 ° can work even in harsh ambient temperature.
Applications
(1) car remote door switch (RKE);
(2) remote control door opener;
(3) wireless security alarm;
(4) remote control curtains;
(5) The wireless industrial controller;
(6) a wireless data transmission.

Wireless module CH340 NodeMcu V3 Lua WIFI Internet of Things development board based ESP8266
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 

 

VGA 666 Adapter Board For Raspberry Pi 3B  2B  B A
Desricption:
It is a neat and very useful solution for using a VGA screen/monitor with your Raspberry Pi and is far cheaper than an HDMI to VGA adapter or similar. The VGA connection is driven natively in hardware over the GPIO pins (using a parallel interface) and uses around the same CPU load as the HDMI connection on board. It is capable of displaying 1080p60 VGA video with no CPU load. It is also possible to drive this interface at the same time as the HDMI connection, so a dual screen set up is also possible.
Please Note. This add on board uses all but 6 of the GPIO pins so it may not be possible to use other add on boards at the same time as the VGA adapter.
Note: Raspberry Pi main board is not included.
Feature
Support for Raspberry Pi 3B / 2B / B / A
The VGA output supports resolution:from 640 x 480 up to 1920 x 1024 at 60fps.
With 6 bits per channel you have a maximum of 262144 colours.
Easy to setup.
Easy to configure.
Dimension: 64.00mm x 32.3mm
Weight: 16.5g
Package included:
1 x VGA 666 Adapter Board For Raspberry Pi 3B / 2B / B / A
How to use it
Edit /boot/config.txt file with vim.tiny or other editor. and modify as following:
framebuffer_width=800
framebuffer_height=600
dpi_group=2
device_tree=bcm2710-rpi-3-b.dtb
dpi_mode=86
dtparam=i2c_arm=off
dtparam=spi=off
dtparam=uart0=off
dtparam=uart1=off
 
 

XS-3868 Bluetooth stereo module
1. Features
1) high integration, low cost, low power consumption
2) comply with Bluetooth2.0 specification
3) Support A2DP V1.2, AVRCP V1.4 profiles
4) Integrated EEPROM, can be configured to work mode and parameters
5) stereo audio output can directly drive 40mW 32Ω speaker
6) Low voltage detection
2. Scope
1) Bluetooth stereo headphones
2) Bluetooth stereo
3. Parameter
1) .USB charging voltage: 4.2V ~ 9V
2) .USB charge current: 400ma
3) .XS-3868 power supply voltage: 3.6V ~ 4.2V
4) Play Music Current:. 80MA (MAX)
5) With machine current: less than 1MA
6) Module size:. 49 * 22mm (without welding XS-3868), 54.5 * 22mm (welding XS-3868)
4. Instructions
Meaning LED lights
D1: Charging
D2: Charging complete
D3: Battery low
D4: LED1, Bluetooth status indication
D5: LED2, Bluetooth status indication
Key meanings:
Previous: on a
Next: at a
VOL-: volume down
VOL : volume increase
Play / Pause: Start / Pause, press switch
5. Notes
1). Next to the antenna can not have a metal
2). Sound shielding box can not be a large area

This auction is forUSB3300 USB HS Board
USB high-speed PHY device for ULPI interface
Overview
TheUSB3300 USB HS Boardis an accessory board which acts as the USB high-speed external PHY device for ULPI interface, features the USB3300, MIC2075-1BM onboard.
Features
USB3300, MIC2075-1BM, ULPI interface
 
Package Contains
USB3300 USB HS Board × 1

MC34063A Positive Voltage Negative Voltage Module DC-DC 3.6v-36v Reverse Voltage Module MC34063
 

 
 
 
 
3D printer Stepper Motor Flexible Coupling Coupler /Shaft Couplings 5 mm*5mm**25 mm FZ0634
 
 
Description:
3D printer Stepper Motor Flexible Coupling Coupler
Size: 5 mm*5mm**25 mm
 
 
 
 
 
 
 
 
 
 
 

 
Soil moisture sensor Moisture Sensor for automatic watering system with demo code
 

Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.
Uses:
Temperature detection, temperature control sensors , ambient temperature detection
Module Features :
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
 
Module for use
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.

  4-channel   relay   output modules ,   relay   output contacts   250A 10A.   Input   IN1,   IN2,   IN3 , IN4,   the signal line   LOW   effective.   VCC, GND   power input,   can   relay   a separate   power   supply   relay   power   input of   JD- VCC .
Uses:
1, support all MCU control.
2, the industrial sector;
3, PLC control
4, smart home control;

 
The main features
Wide power supply voltage of 1.71 V to 3.6 V
Independent IO power supply (1.8 V) and the power supply voltage compatible
Ultra-low power consumption of plus or minus 2 g / / 6 g / 4 g 8 g / 16 grams of dynamic optional full scale
IIC/SPI digital output interface
16 bit data output
A programmable embedded state machine
Embedded temperature sensor
Built-in self test
An embedded fifo
10000 g high impact ability
 
 
 
                                                                                                                                     

Specifications:
Model Number: XH-M609
Supply Voltage: DC 12-36V
Output Voltage: Equal to supply voltage
Control Precision: 0.1V
Power: 1.5W
Application Range: Storage Batteries; Lithium Batteries
Size: 5.7x4.2cm/2.24x1.65"
Quantity: 1 Pcs
 
Note:
Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid
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