Elektronikus összetevők

The CP2112's highly integrated USB-to-SMBus bridge controller integrates a USB 2.0 full-speed function controller, USB transceiver oscillator and eight GPIO pins. All customization and configuration options can be selected through a simple GUI-based configurator. Standard HID class devices do not require the development of complex firmware and drivers. The CP2112 device enables fast USB connectivity with minimal development effort.
Parameters: USB bus power supply: 4.0 to 5.25V
Self-powered: 3.0 to 3.6V
I/O voltage: 1.8V to VDD
Working environment temperature: -40 ° C ~ 85 ° C
On-chip power-on reset circuit, on-chip voltage regulator: 3.45 V output
Compliant with USB specification 2.0 standard; full speed (12Mbps)
USB suspend status via SUSPEND and /SUSPEND pins
Integrated 194-byte one-time programmable ROM for storing customizable product information 512-byte SMBus data buffer, configurable clock speed device address 7-bit value is the slave address of CP2112 Windows, Mac, and Linux HID to SMBuslibraries API for rapid application development, open access interface specifications. 8 GPIOs can be configured as input/output and open drain/push-pull, configurable clock output for external devices 48MHz to 94kHz, switching LEDs during read/write SMBus
Module size: 29.5mm*21.3mm, with two M3 mounting holes, one MicroUSB female port
Application areas: portable controllers, USB dongle, data logging

 

Feature :
1.Gilt PCB and Small dimension and easy to embed into your project
2.Support I2C.SPI and HSU (High Speed UART), Change between those modes
3.Support RFID reading and writing
SupportP2P communication with peers
Support NFC with Android phone
4.Typical Operating Distance have been updated to 5cm~7cm reading distance
5.Work in NFC Mode or RFID reader/writer Mode
6.RFID reader/writer supports:
1) 1k, 4k, Ultralight, and DesFire cards
2) ISO/IEC 14443-4 cards such as CD97BX, CD light, Desfire, P5CN072 (SMX)
3) Innovision Jewel cards such as IRT5001 card
4) FeliCa cards such as RCS_860 and RCS_854
7.Plug and play, forcompatible
8.Built in PCB Antenna, with 4cm~6cm communication distance
9.On-board level shifter, Standard 5V TTL for I2C and UART, 3.3V TTL SPI
10.Work as RFID reader/writer
11.Work as 1443-A card or a virtual card
12.Exchange data with other NFC devices such as smartphone

Conversion can use a few chips is 1.8 V, such as winbond w25q64, macro mx25u1635 flourishing, mx25u6435 etc to burn written in 3.3 V programmer for conversion. These chips are normally used for apple computer motherboard.
Applicable as main 1.8 V chip:
winbond
W25q10ew w25q20ew, w25q20bw w25q40ew, w25q40bw, w25q80ew, w25q80bw, w25q16dw, w25q16fw, w25q32dw, w25q32fw, w25q64dw, w25q64fw, w25f128fw
In the macro
Mx25u5121e mx25r512f, mx25u1001e mx25r1035f, mx25u2033e, mx25r2035f, mx25u4035,
Mx25u4033e mx25u4032e, mx25r4035f mx25u8035, mx25u8035e, mx25u8033e, mx25u8032e,
Mx25r8035f mx25u1635e, mx25v1635f mx25u1635f, mx25r1635f, mx25u3235e, mx25u3235f,
Mx25r3235f mx25u6473f, mx25u6435f mx25r6435f, mx25u12873f, mx25u12835f,
Mx25u25635f mx25u51245g, mx25um51245g mx66u51235f
Such as...
Conversion can use a few chips is 1.8 V, such as winbond w25q64, macro mx25u1635 flourishing, mx25u6435 etc to burn written in 3.3 V programmer for conversion. These chips are normally used for apple computer motherboard.
Applicable as main 1.8 V chip:
winbond
W25q10ew w25q20ew, w25q20bw w25q40ew, w25q40bw, w25q80ew, w25q80bw, w25q16dw, w25q16fw, w25q32dw, w25q32fw, w25q64dw, w25q64fw, w25f128fw
In the macro
Mx25u5121e mx25r512f, mx25u1001e mx25r1035f, mx25u2033e, mx25r2035f, mx25u4035,
Mx25u4033e mx25u4032e, mx25r4035f mx25u8035, mx25u8035e, mx25u8033e, mx25u8032e,
Mx25r8035f mx25u1635e, mx25v1635f mx25u1635f, mx25r1635f, mx25u3235e, mx25u3235f,
Mx25r3235f mx25u6473f, mx25u6435f mx25r6435f, mx25u12873f, mx25u12835f,
Mx25u25635f mx25u51245g, mx25um51245g mx66u51235f
Such as...

Pack:
DS1307 I2C real-time clock chip (RTC)
24C32 32K I2C EEPROM memory
Solve the problem DS1307 with backup battery can not read and write.
Fully charged, it can provide the DS1307 timing 1.
Compact design, 27mm * 28mm * 8.4mm
Leads to the a DS1307 clock pin, to provide the clock signal for the microcontroller.
Can be cascaded to other I2C devices.

 
What's new about V3.0.0
 
Optimize the circuit
 
Add Deep-Sleep jumper.
Default firmware: lastest MicroPython ESP8266 firmware.
 
 
Features
 
11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0)
1 analog input(3.2V max input)
a Micro USB connection
Compatible with for MicroPython, for Arduino, for Nodemcu
lots of Shields
 
 
Package include:
 
 
Long femalepinsx2pcs 
Short female pins x2pcs
Normal pins x2pcs
for WEMOS D1 mini Boardx1pcs

10pcs Basic Breakout Board For FTDI FT232RL USB To TTL Serial IC Adapter Converter Module For Arduino 3.3V 5V FT232 Switch

Features:
Non-contact magnetic induction angle measurement module.
High precision, a variety of output modes:IIC,PWMAnd voltage.
Electrical parameters:
VCC

3.3V
GND

Power Ground
Out

PWM /Analog voltage output
DIR

Rotational direction (ground=Value increases clockwise; thenVCC =Clockwise values are decreased)
SCL

IICThe communication clock line
SDA

IICData communication line
GPO

Mode selection (internal pull ground=Programming modeB)

Embed version of Mega 2560 CH340G/ATmega2560 - compatible with Arduino Mega 2560 board. Built on the Atmel ATmega2560 microcontroller and USB-UART interface chip CH340G.
Board have compact size 38x55mm. It is good solution, to make your final project on solder proto-board.
Board for functionality similar to the Arduino Mega 2560. It is embed board, but the same stable, and uses the original chips ATmega2560 (16 MHz).
The board used the chip CH340G as converter UART-USB. When you work in the frequency 12Mhz, giving a stable result of data exchange (need install drivers to computer).
Mega PRO (Embed) 2560 CH340G / ATmega2560 - connects to the computer via microUSB cable (used for almost all Android smartphones).
You can supply power to board through the MicroUSB connector or to power pinheaders. The voltage regulator (LDO) can deal with incoming voltage from 6V to 9V (peack 18V) DC. Output current for 5V - about 800mA, for 3.3V - about 800mA (Please note that the higher the input voltage the lower the outgoing current). That will provide a reliable power most of your initial projects.

10pcs BME680 Digital Temperature Humidity Pressure Sensor CJMCU-680 High Altitude Sensor Module Development Board
Working voltage: 1.7V3.6V
Working temperature: -40 ℃ ~ 85 ℃
Communication interface: 12C (up to 3.4 MHz) and SPI (3 and 4 wires, up to 10 MHz)
Humidity, pressure and gas sensors can be enabled / disabled individually
The current consumption at 1 Hz humidity and temperature is 2.1 LA, the current consumption at 1 Hz pressure and temperature is 3.1 LA, and the current consumption at 1 Hz humidity, pressure and temperature is 3.7 LA
Gas sensor parameters: response time (33-63% ) <1s (for new sensors) power consumption in ultra-low power mode <0.1 mA output data processing direct indoor air quality (IAQ) index output humidity sensor parameters: response time (0 -83% ) ~ 8s
Accuracy tolerance ± 396r ..
Hysteresis ± 1.5% r.h.
Pin definition
vCC: Power supply is positive
GND: ground
SCL: 12C / SP1 clock line
SDA: 12C / SP! Data cable
sDO: SPI data cable
CS: SPI1 slave enable

 
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.

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W5100 is a versatile single-chip network interface chip , internal integrated 10/ 100 Ethernet controller , mainly used in high integration , high stability , high performance and low cost of embedded systems. W5100 can be achieved using an Internet connection without an operating system . W5100 is compatible with IEEE802.3 10BASE-T and 802.3u 100BASE-TX. W5100 internal integration of the full hardware , and after years of market-proven TCP / IP protocol stack, Ethernet media transport layer (MAC) and physical layer (PHY). W5100 does not need to consider the use of Ethernet control port requires only a simple (Socket) programming.
Product Features
Multiple interface options: direct bus , indirect bus and SPI bus ;
Support for hardware TCP / IP protocol stack, supports TCP, UDP, ICMP, IGMP, IPv4, ARP, PPPoE.
Up to four independent ports ;
Integrated 16KBYTE receive buffer ;
A variety of information indicates output, including RX, TX, Full / Duplex, Colision, Link, Speed;
Supports auto-polarity (DMI / MDIX);
3.3V power supply , IO signal compatible with 5V voltage ;
built-in Ethernet port , double 2 * 14 2.0mm pin ;
The official  Ethernet -compatible library .

1S 2S 3S 4S Single 3.7V Lithium Battery Capacity Indicator Module 4.2V Blue Display Electric Vehicle Battery Power Tester Li-ion
Features:
1.Battery type electricity quantity display
2.Wide application fields:lithium battery
3.Using Method:connect display board positive and negative port with tested battery positive
and negative port,digital tube will display real-time battery electricity quantity
4.Digital Color:outline red,display block blue (when battery electricity quantity is full,
it will be all on)
Display Electricity Quantity Parameter:
1.When battery voltage is over N*3.3V,it will illuminate 1 block electricity quantity
(note:N represents battery quantity)
2.When battery voltage is over N*3.5V,it will illuminate 2 blocks electricity quantity
3.When battery voltage is over N*3.7V,it will illuminate 3 blocks electricity quantity
4.When battery voltage is over N*3.9V,it will illuminate 4 blocks electricity quantity
5.When battery voltage is less than N*3.3V,4 blocks display will be off;it represents battery
is less than 3.3V,and you can charge the battery

- DS1302 main performance index
In The real time clock has The ability of calculating The prior to The 2100 second, minute, hour, day, week, month, year, and The ability to adjust a leap year
- Wide working voltage: 2.0 ~ 5.5 V
- When The working voltage is 2.0 V, The current is less than 300 na
- Read/write clock or RAM data have two transmission way: Single - byte/many bytes group
8 feet - 8 feet DIP the assembly or optional SOIC encapsulation "according to the surface of the assembly

Module Description
The sensor module adaptable to ambient light, having a pair of infrared emitting and receiving tubes, transmitting tubes emit infrared certain frequency, when the direction of an obstacle is detected (reflection surface), the infrared reflected is received by the reception tube, After a comparator circuit processing, the green light is on, but the signal output interface output digital signal (a low-level signal), you can adjust the detection distance knob potentiometer, the effective distance range of 2 ~ 30cm, the working voltage of 3.3V- 5V. Detection range of the sensor can be obtained by adjusting potentiometer, with little interference, easy to assemble, easy to use features, can be widely used in robot obstacle avoidance, avoidance car, line count, and black and white line tracking and many other occasions.
Module Parameters
When the module detects an obstacle in front of the signal, the green indicator lights on the board level, while the OUT port sustained low signal output, the module detects the distance 2 ~ 30cm, detection angle 35 °, the distance can detect potential is adjusted clockwise adjustment potentiometer, detects the distance increases; counterclockwise adjustment potentiometer, reducing detection distance.
2, the sensor active infrared reflection detection, target reflectivity and therefore the shape is critical detection distance. Where the minimum detection distance black, white, maximum; small objects away from a small area, a large area from the Grand.
3, the sensor module output port OUT port can be directly connected to the microcontroller IO can also be directly drive a 5V relay; Connection: VCC-VCC; GND-GND; OUT-IO
4, comparators LM393, stable;
5, the module can be 3-5V DC power supply. When the power is turned on, the red power indicator lights;
6, with the screw holes 3mm, easy fixed installation;
7, board size: 3.2CM * 1.4CM
8, each module has been shipped threshold comparator voltage adjusted by potentiometer good, non-special case, do not adjustable potentiometer.
Module Interface Description
1 VCC 3.3V-5V external voltage (can be directly connected to 5v and 3.3v MCU MCU)
2 GND GND External
3 OUT small board digital output interface (0 and 1)

 
NOTE:Its color is randomly!!!
1. support the full range of STM32 SWD debugging interface, a simple 4-wire interface (including power), fast, stable; interface definition housing directly marked! Do not need to read the manual;
2. support the full range of STM8 SWIM download debugging (common development environments such as IAR, STVD etc. are supported); supported software versions as follows:
① ST-LINK Utility 2.0 and 4.2.1 above
② STVD and above
③ STVP 3.2.3 and above
④ IAR EWARM V6.20 and above
⑤ IAR EWSTM8 V1.30 and above
⑥ KEIL RVMDK V4.21 and above
3. support for automatic firmware upgrades to ensure follow-up support ST products. The factory firmware has been upgraded to the latest V2.J17.S4;
4. increase the 5V power output, the output I / O ports are protected afraid of operational errors caused by ST-LINK V2 damage!
5. the interface easy to use copper gilded horns seat pitch of 2.54, with 20CM DuPont line, the line can respond to different target sequence, flexible wiring;
6. the use of U disk aluminum housing protects the motherboard, easy to carry, is not afraid of static electricity, afraid to fall throw touch.
7.with data package, containing: (e-file, disk, and network support Baidu QQ mailbox to send)
1, STLINK / V2 driver;
2, KEIL MDK (4.60) development environment (and other common development environments)
3, IAR STM8 (1401) development environment (and other common development environments)
4, STVD STM8 development environment (and other common development environments)
5, a number of classic STM32 information (including a large number of source code examples and video tutorials)
6, a number of classic STM8 information (including a large number of source code examples and learning experience)  

20pcs/lot USB to RS485 485 Converter Adapter Support Win7 XP Vista Linux Mac OS WinCE5.0

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Product Description
FEATURES :
1. Support 1.5V,1.8V,2.5V,3.5V and 5.0V.
2. Support all ALTERA products : CPLD ( MAX3000, MAX7000, MAX9000 and MAX II ) ; FPGA ( Stratix, StratixII, Cyclone, CycloneII, ACEX 1K, APEX20K and FLEX 10K ) ;Active serial configuration device (EPCS1, EPCS4, EPCS16)
---- Now we have tested chip using this tool is: Cyclone (EP1C3, EP1C6, EP1C12, EP1C20) ; Cyclone II (EP2C5, EP2C8, EP2C35) ; Stratix (EP1S10, EP1S20, EP1S25) ; Stratix II(EP2S60) ; FLEX10K(EPF10K10, EPF0K30) ; ACEX1K(EP1K30) ; MAX7000(MAX7128SLC84, MAX7128) ; AETC100(MAX3000, MAX3128) ; MAXII(MAXII240, MAXII570, MAXII1270) ; EPCS(EPCS1, EPCS4, EPCS16) ; EPC(EPC1, EPC4)
3. Support AS, PS and JTAG program ( with Verify and BankCheck function) .
---- When we tested the chip above , we use the different program mode: JTAG ( Cyclone, CycloneII, Stratix II, Flex10K, Acex1K, Max7000 and Max3000) ; AS ( EPCS1, EPCS4, EPCS16 ) ; PS ( Stratix , Stratix GX )
4. Support embedded logic analyzer function of SignalTapII
5.Support NIOS II communication and debugger-- When you use it to debug your Black Gold , it will not Pop-up warning
6. Faster -- about 6 times than ByteblasterII
7. USB interface ! -- you don't need a PC with serial port now
8. 100% compatible with Official ALTERA USB Blaster
Packing List
1, USB cable one
2,10 core JTAG data line 1
3, USB-Blaster driver installation instructions

Power supply mode:3.3V external power supply, current should be more than 200mA;
Control interface:The TTL level, 3.3V SPI interface;
PCB size:23 * 25 mm;
Mechanical Dimensions:28.5 * 23 * 24;
USR-ES1 is the Ethernet module of a SPI interface, interface is TTL level of 3.3V, power supply voltage of 3.3V, please ensure that the current is not less than 200mA, voltage is continuous and stable 3.3V.
High speed SPI interface 80MHz
Hardware-TCPIP-protocol stack user built in, almost without understanding the complex network protocol knowledge
Supports up to 8 Socket
Support TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE protocol
Integration of the data link layer, physical layer
Support the wakeup
Support high speed serial peripheral interface (SPI model 0, 3)
Internal 32K bytes receive buffer
The embedded 10BaseT/100BaseTX Ethernet physical layer (PHY)
Support auto negotiation (10/100-Based full duplex or half duplex)
Does not support the IP patch
The working voltage of 3.3V, I/O and 5V voltage signal
LED display (full duplex or half duplex, network connection, network speed,active)
Pin type package ultra small, convenient for embedded applications
Application of C sample project

Product Introduction:
1.Board Size;90*60mm
2.Board Thickness:1.6mm
3.Flow Water Lamp Circuit : CD4017,NE888,LED;after correct connnection,it will operate
4.Operating Voltage :3-12V
5.board material: international standard sheet, all tin pad, high strength fire drop material, can be repeated disassembly.
6. PCB board design is reasonable, are commonly used in the SMD components.
7. the left and right of the three components are used to practice welding, each column with a test point.
8. the middle of the circular circuit for the water lamp circuit, by the CD4017, NE555, light-emitting diodes, welding power can work.
9. the circuit is also used on the back, a ruler to facilitate the measurement of components. There are examples of PCB conductors to facilitate the use of PCB design.
Number of components: 125
Number of solder joints: 274
Use solder length: 35CM (diameter: 0.6mm)
Sample soldering time: 35 minutes
Note:
Please allow 0.5-1cm errors due to manual measurement
Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same

LM3915 audio level indicator kit (presented two connecting lines)
Power supply voltage: DC9V - 12V
PCB Size: 62mm * wide 27mm
Two kinds of instruction modes: strip instructions and fire point-like instructions
Lights provide both vertical and horizontal rows of installation
HAL treated pad
Parameters are printed directly on the PCB components, without reference to the circuit diagram of the situation can be welded directly, very convenient.
HAL treatment pads, solder joints can be better, but beautiful.

50pcs/lot USB to RS485 485 Converter Adapter Support Win7 XP Vista Linux Mac OS WinCE5.0

Output Current : 1.5A ( minimum ), 2.2A ( typical value )
Input-output voltage difference (VI-VO): 40Vdc ( max )
Adjustable output voltage range : 1.2 ~ 37V
Working temperature : -55 ° C to 150 ° C
Current output : 1.5A
Voltage Input : 4.2 ~ 40 V
Operating temperature : 0 ° C ~ 125 ° C
Characteristic frequency : 100 (MHz)
Module size : 35.6 (mm) x16.8 (mm)
Input mode : VIN input positive level , GND input negative
Output : VOUT output positive level , GND output negative

Product model: XH-A901
Input voltage: DC12-24V
Number of channels: two channels
Size: 96*39*16MM
Installation aperture: 3MM
Installation hole distance: 89.3*32.3MM
Chip:Two NE5532
Package include :
1pcs XH-A901 NE5532 Tone Board
1pcs 3P Audio cable

Features :
100% Brand New
Voltage: DC 6-36V
Output current: 300mA
3 Wire
Polarity: NPN
Dimention: M12x10x55mm
Detection Distance: 4 mm
Ouput Status: Normally Open
Part number: LJ12A3-4-Z/BX
Detection objects: Conductor

10pcs/lot USB to RS485 485 Converter Adapter Support Win7 XP Vista Linux Mac OS WinCE5.0

pecifications
Introductionto1602-characterLCD
1602LCDmaintechnicalparameters:
1.displaycapacity:16x2characters
2.chipworkingvoltage:4.5-5.5V
3.current:2.0mA(5.0V)
4.moduleoptimumworkingvoltage:5.0V
5.charactersize:2.95x4.35(WxH)mm
2.themoduleweight:57g
1.module:20.5mmx41mm

Model: GY - 511
Size: 14.5 mm * 20.5 mm
Name: LSM303DLHC module (three axial magnetic field triaxial acceleration)
Chip built-in 12 bit AD converter, a 16-bit data output
Using high quality heavy gold PCB, machine welding process to ensure quality

The balance board is suitable for  the li-ion battery pack BMS WHICH without  balance function,so as to  equalizing charge lithium battery charge function, make the battery pack each series charge at the same time.
Note:The balancing board must need BMS to use together,and the BMS is without balancing function
Parameter:
Balance Voltage for each single cell: 4.2V
Balance current for each single cell :66mA
Size: L25mm*W22mm
Balancer is just a Auxiliary function, The balancing means when the battery charging,each series battery need with the same voltage.when ONE cell voltage get 4.2V ,the other cells not, the first cell voltage will discharge to wait the other cells rising to the same level.
Note:
battery internal resistance differences within 5 milliohm, voltage within 0.03 V voltage, capacity vary within 50 ma
Cut-off  Voltage is according to the BMS setting.
Note:the balancer starts balancing when the one cell get 4.2V, The Cut-off  Voltage is according to the BMS setting,but the bms cut-off voltage needs more than 4.25V which is much better.
4S  Cnnection instruction:
B4    Connect battery positive;
B3    Connect the point between battery 1 and battery 2;
B2    Connect the point between battery 2 and battery 3;
B1    Connect the point between battery 3 and battery 4
B-     Connect battery negative;

Description:
Material: Electrical components
Color: See pictures
ZB2L3 battery capacity tester discharge type 1.2-12V external load capacity of the battery and other tests 18650
Tools, single-function, by controlling the load off and get real-time integrated discharge current capacity results
Maximum support 15V 3A discharged through the discharge voltage and current, itself does not discharge
Maximum capacity statistics support 9999Ah (9999000mAh)
Automatically identify and develop appropriate battery termination voltage can also be manually adjusted
Specifications:
Power supply voltage: DC4.5-6V (micro USB connector)
Operating Current: less than 70mA
Discharge voltage: 1.00V-15.00V 0.01V resolution
Termination voltage range: 0.5-11.0V
Supported by current: 3.000A 0.001A resolution
Maximum voltage measurement error: 1% 0.02V
Maximum current measurement error: 1.5% - 0.008A
Maximum battery capacity range: 9999Ah (1Ah = 1000mAh) greater value by shifting the decimal point to switch, when the display is less than 10Ah X.XXX, as shown above to achieve 10Ah XX.XX, and so on.
Board size: 50mmX37mm
Finished Size: 50mmX37mmX17mm (length X width X height maximum position size, contains copper foot height)
Instructions:
1. The first test should be fully charged battery.
2. Connect the battery to be tested positive to positive input, a negative input to the negative, can not be reversed (with load reversal may damage the circuit)! Load connected to the output of the positive and negative output, to work through the tester micro USB power supply (not available desktop or laptop USB powered), then the battery voltage.
3. Direct start test need only one press of the "OK" button, the tester can automatically develop an appropriate termination voltage of the battery full charge voltage, and will start flashing after the test three times. Need to develop artificial termination voltage only when the battery voltage display state by pressing " " or "-" buttons to modify the termination voltage display beginning with P, behind the representative voltage resolution 0.1V, set up after pressing the "OK "start testing.
4. After the start of the test the tester will control the load of the electronic switch is turned on, the test data shows that the process will release capacity (Ah), current discharge current (A) and battery voltage (V) between the wheel was. When the battery voltage reaches the set cut-off voltage, load control switches off the tester display data stays in capacity (Ah) and above and the corresponding indicator flashes quickly together, now displays the actual capacity of the battery is discharging capacity, about the press "OK" to terminate flashing allows stable data display, press again "OK" button to return to the power-on state can just replace the battery test the next section ......
Error codes and their meanings:
Err1: battery voltage is above 15V
Err2: battery voltage is lower than the termination voltage
Err3: Battery can not afford to load or discharge current line too much resistance
Err4: overcurrent (current exceeds 3.1A)
Note:Use the resistance of the discharge process, resistive load will seriously heat, please pay attention to safety!
This circuit voltage in order to improve the measurement accuracy, specially designed DC bias, when the terminal displays nothing then a small voltage does not affect the actual measurement, if you are shorting the input terminals (absolute 0V) will show 0

The baby description
1 sensor adopts TR5000, high sensitivity
2 sensitivity adjustable digital potentiometer to adjust (blue)
3 modules can induction block from 0 to 3 cm
4-5 V working voltage of 3.3 V
5 a output form the output analog voltage (0 to 5 v)
B digital switch output (0 and 1)
6 has a fixed bolt hole, the work of the installation
Seven small board PCB size: 3.5 cm * 1.5 cm
8 the power indicator light (red) and digital switch output indicator light (green)
9 comparator USES the LM393 chips, work stability
Three small plate interface specifications wire (4)
1 VCC external 3.3 V to 5 V
2 GND external GND
3 DO small plate digital output interface (0 and 1)
4 small AO plate analog output interface (0 to 5 v)
Four instructions
The module can be 1 2 intelligent tracing car obstacle avoidance, material testing, color detection
2 modules in shining or keep out the short is greater than the set threshold the DO output high level, the when the module block short is less than the setting threshold, the module D0 output low level;
3 small plate digital output D0 can be attached directly to the microcontroller, through single chip microcomputer to detect the high and low level, thus to detect been the modules are triggered.
4 small plate digital output DO can directly drive our relay module, which can be composed of a photoelectric switch;
5 small plate analog output can AO and AD modules are linked together, through the AD conversion, the can module are obtained and the obstructions of short.

Description:
Dimension: 3.2cm x 2.4cm x 1.8cm (approx)
Infrared sensor with control circuit board
The sensitivity and holding time can be adjusted
Working Voltage Range: DC 4.5V- 20V
Current drain:<60uA
Voltage Output: High/Low level signal:3.3V TTL output
Detection distance: 3--7M(can be adjusted)
Detection range: <140°
Delay time: 5-200S(can be adjusted, default 5s -3% )
Blockade time: 2.5 S (default)
Trigger: L: Non-repeatable trigger H: Repeat Trigger (default)
Work temperature:-20- 80°C
Trigger Method: L unrepeatable trigger / H repeatable trigger

1 , on-board MAX485 chip , is a tool for RS-485 communications , low-power , Slew-Rate Transceiver
2 , onboard then 5.08 (mm) pitch 2P terminal for easy wiring RS-485 communication
3 , the chip has drawn all of the pins can be controlled by the microcontroller operation
4, Working voltage : 5V
5 , board size : 44 (mm) x14 (mm)

Size:32mm*17mm*8mm(length*width*height)
Main chip:LM393, Electret condenser microphone
Working voltage: DC 4-6V
Signal output indication
Single channel signal output
The output effective signal is low level
When there is sound, outputs low level and the signal light
Can be used for Acoustic control light , give sound and light alarm working with Photosensitive sensor ,and sound control, sound detect
Circuit board output switch quantity
Note: The Maximum induction distance is 0.5

Supports Hardwired TCP/IP Protocols : TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
Supports 8 independent sockets simultaneously
Supports Power down mode
Supports Wake on LAN over UDP
Supports High Speed Serial Peripheral Interfac(SPI MODE 0, 3)
Internal 32Kbytes Memory for TX/RX Buffers
10BaseT/100BaseTX Ethernet PHY embedded
Supports Auto Negotiation (Full and half duplex, 10 and 100-based )
Not supports IP Fragmentation
3.3V operation with 5V I/O signal tolerance
LED outputs (Full/Half duplex, Link, Speed, Active)
48 Pin LQFP Lead-Free Package (7x7mm, 0.5mm pitch)
Specifications:
Chip type: W5500
Supports both 3.3V & 5V.
Hardwired TCP/IP Protocols : TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
10BaseT/100BaseTX Ethernet PHY embedded
Supports automatic response (full duplex / half duplex mode)
Supports 8 independent sockets simultaneously
Internal 32Kbytes Memory for Tx/Rx Buffers
Power off mode: support
Network wake: support
SPI interface (SPI MODE 0, 3),convenient connection with MCU
Size: 55mm x 28mm
Description: