Kereskedelmi, irodai és ipari

all is only board,If you need a USB cable, the shop has a link for the USB cable

all is only board,If you need a USB cable, the shop has a link for the USB cable

all is only board,If you need a USB cable, the shop has a link for the USB cable

Lower distortion, better control and resolution. Single differential input, single-ended voltage amplifier stage, three-stage inverting Darlington output stage.
The small tube is produced by PHILIPS, and the output stage is imported KTB817, KTD1047.
ST, EVOX produces CBB capacitors.
KEMET, TDK's monolithic capacitors.
Electrolytic capacitors imported from Japan
All resistors use original authentic metal film resistor copper feet.
Supported voltage DC: -15V to -45V
AC dual 12V- dual 32V can be obtained after rectification.
Power 15-100W, 8 ohms.
PCB area 76*73 mm Version number V7(MX50SE)
Installation Note: The 649 669 must be installed on the mating radiator.
No adjustment is required after installation, and the quiescent current is about 30MA per tube. This version does not require flying leads. Just attach the two large tubes to the radiator.
The MX50 L series AMPs designed by me have been tested by a variety of instruments and have excellent performance. The components and PCB versions used in the imitation MX50 or music fax XX50 circulating on the Internet are different, please pay attention to the comparison if you buy. The current version of MX50 is V7 ( MX50SE )
Test data: Test equipment: Audio Precision 2
Frequency response=20HZ-25K HZ-0.2DB

1.Description:
XY-KPWM signal generator is a device that provides electrical signals at a variety of frequencies, square wave, and output levels.It is used as a signal source or excitation source for testing.Widely used in production practice and technology.
2.Features:
1>.With outer casing
2>.LCD high definition display
3>.Support UART
4>.Support frequency adjustment
5>.Support duty cycle adjustment
6>.High precision detection
7>.Support power-down memory function
8>.1-Channel PWM output
9>.Dual Work Mode
10>.Knob supports lock function to avoid misoperation
11>.Support enable output
3.Parameters:
1>.Product name: XY-KPWM PWM Signal Generator;
2>.Model: XY-KPWM;
3>.Work Voltage:DC 3.3V-30V;
4>.Frequency range(Normal mode):1Hz~150KHz;
5>.Frequency range(Precise mode):1Hz~15KHz;
6>.Frequency accuracy:2% ;
7>.Duty cycle accuracy:1% at Normal mode;
8>.Duty cycle accuracy:0.1% at Precise mode;
9>.Duty cycle range:0.00% -100% ;
10>.Output Current:About 5-30mA;
11>.Output amplitude:Same to input voltage;
12>.Work Temperature:-40℃~85℃;
13>.Work Humidity:0% ~95% RH;
14>.Size:79*43*37mm;
4.Frequency set range:
There is two work mode so it have two frequency range.
Normal mode:Frequency range 1Hz~150KHz.Duty cycle range 000% -100% .Duty cycle accuracy 1% .
Precise mode:Frequency range 1Hz~15KHz.Duty cycle range 0.00% -100% .Duty cycle accuracy 0.1% .
Enter the settings interface when short press rotary switch in the normal running status to select frequency range.Rotary potentiometer to set frequency value.
Keep press rotary switch for 10second to switch Normal mode and Precise mode.
Keep press for 5second to locking parameters to protect the parameters from being modified.
Pay attention to the position where the decimal point moves when rotary potentiometer..
Display 'XXX'.No decimal point,The minimum frequency is 1Hz.The frequency range is 1Hz ~ 999Hz.
Display 'X.XX'.The decimal point is the penultimate, The minimum frequency is 0.01KHz.The frequency range is 1.00KHz ~ 9.99KHz.
Display 'XX.X'.The decimal point is the third last,The minimum frequency is 0.1KHz.The frequency range is 10.0KHz ~ 99.9KHz.
Display 'X.X.X'.The decimal point is fully lit,The minimum frequency is 1KHz.The frequency range is 1KHz ~ 150KHz.
For example:
Display '100' means PWM output frequency is 100Hz;
Display '1.91' means PWM output frequency is 1.91KHz;
Display '52.1' means PWM output frequency is 52.1KHz;
Display '1.3.4' means PWM output frequency is 134KHz;
5.Duty cycle set range:
Short press potentiometer to select set duty cycle and rotary potentiometer to set duty cycle value.
6.Use steps:
1>.Connect to power supply;
2>.Press rotary switch for 10second to switch Normal mode and Precise mode;
3>.Short press rotary switch to set frequency and change value by rotating switch;
4>.Press rotary switch for 2second to set duty cycle;
5>.Keep press for 5second to lock set parameters;
6>.Test;
7>.Press button 'ON/OFF' to turn on or off PWM output;
8>.Remove power and connect load to use module.
7.Application:
1>.Square wave signal generator, generating square wave signal for experimental development;
2>.Used to generate a square wave signal that controls the motor driver;
3>.Generate adjustable pulses for use by the MCU;
4>.Dimmer;
5>.Speed governor;
8.Note please:
1>.It's 1-channel PWM output signals.
9.Package:
1>.1pc XY-KPWM PWM Signal Generator;

1.Description:
XY-KPWM signal generator is a device that provides electrical signals at a variety of frequencies, square wave, and output levels.It is used as a signal source or excitation source for testing.Widely used in production practice and technology.
2.Features:
1>.With outer casing
2>.LCD high definition display
3>.Support UART
4>.Support frequency adjustment
5>.Support duty cycle adjustment
6>.High precision detection
7>.Support power-down memory function
8>.1-Channel PWM output
9>.Dual Work Mode
10>.Knob supports lock function to avoid misoperation
11>.Support enable output
3.Parameters:
1>.Product name: XY-KPWM PWM Signal Generator;
2>.Model: XY-KPWM;
3>.Work Voltage:DC 3.3V-30V;
4>.Frequency range(Normal mode):1Hz~150KHz;
5>.Frequency range(Precise mode):1Hz~15KHz;
6>.Frequency accuracy:2% ;
7>.Duty cycle accuracy:1% at Normal mode;
8>.Duty cycle accuracy:0.1% at Precise mode;
9>.Duty cycle range:0.00% -100% ;
10>.Output Current:About 5-30mA;
11>.Output amplitude:Same to input voltage;
12>.Work Temperature:-40℃~85℃;
13>.Work Humidity:0% ~95% RH;
14>.Size:79*43*37mm;
4.Frequency set range:
There is two work mode so it have two frequency range.
Normal mode:Frequency range 1Hz~150KHz.Duty cycle range 000% -100% .Duty cycle accuracy 1% .
Precise mode:Frequency range 1Hz~15KHz.Duty cycle range 0.00% -100% .Duty cycle accuracy 0.1% .
Enter the settings interface when short press rotary switch in the normal running status to select frequency range.Rotary potentiometer to set frequency value.
Keep press rotary switch for 10second to switch Normal mode and Precise mode.
Keep press for 5second to locking parameters to protect the parameters from being modified.
Pay attention to the position where the decimal point moves when rotary potentiometer..
Display 'XXX'.No decimal point,The minimum frequency is 1Hz.The frequency range is 1Hz ~ 999Hz.
Display 'X.XX'.The decimal point is the penultimate, The minimum frequency is 0.01KHz.The frequency range is 1.00KHz ~ 9.99KHz.
Display 'XX.X'.The decimal point is the third last,The minimum frequency is 0.1KHz.The frequency range is 10.0KHz ~ 99.9KHz.
Display 'X.X.X'.The decimal point is fully lit,The minimum frequency is 1KHz.The frequency range is 1KHz ~ 150KHz.
For example:
Display '100' means PWM output frequency is 100Hz;
Display '1.91' means PWM output frequency is 1.91KHz;
Display '52.1' means PWM output frequency is 52.1KHz;
Display '1.3.4' means PWM output frequency is 134KHz;
5.Duty cycle set range:
Short press potentiometer to select set duty cycle and rotary potentiometer to set duty cycle value.
6.Use steps:
1>.Connect to power supply;
2>.Press rotary switch for 10second to switch Normal mode and Precise mode;
3>.Short press rotary switch to set frequency and change value by rotating switch;
4>.Press rotary switch for 2second to set duty cycle;
5>.Keep press for 5second to lock set parameters;
6>.Test;
7>.Press button 'ON/OFF' to turn on or off PWM output;
8>.Remove power and connect load to use module.
7.Application:
1>.Square wave signal generator, generating square wave signal for experimental development;
2>.Used to generate a square wave signal that controls the motor driver;
3>.Generate adjustable pulses for use by the MCU;
4>.Dimmer;
5>.Speed governor;
8.Note please:
1>.It's 1-channel PWM output signals.
9.Package:
1>.1pc XY-KPWM PWM Signal Generator;

1. Length: 28mm X width 12mm X height 10mm
 
2. Main chip: LM35 temperature sensor
3. Working voltage: DC 4-30V
 
4. Features:
 
      
 
1. Linear change coefficient: 10mv/℃
 
2. Low power consumption is less than: 60uA
 
3. Temperature measurement range: 0---100℃
 
4. Temperature measurement accuracy: ±0.5℃
 
5. Wide working voltage range: DC4~30V
 
6. Linear analog signal output

If you need a USB cable, the shop has a link for the USB cable
The FunduiNano is an ultra-small simple I/O platform based on open source code,it has a big advantage in size compared to the old USB version.Funduino could srice works which need to operate independently and interactive effective of electronic appliances,also can srice those connected with the PC,in collaboration with Flash,Processing,the Max/Msp,the PD,vvvv and other software.
Feature:
Microcontroller

Atmel ATmega328
Operating Voltage (logic level)

5 V
Input Voltage (recommended)

7-12 V
Input Voltage (limits)

6-20 V
Digital I/O Pins

14 (of which 6 provide PWM output)
Analog Input Pins

8
DC Current per I/O Pin

40 mA
Flash Memory

32 KB (of which 2KB used by bootloader)
SRAM

2 KB
EEPROM

1 KB
Clock Speed

16 MHz

If you need a USB cable, the shop has a link for the USB cable
The FunduiNano is an ultra-small simple I/O platform based on open source code,it has a big advantage in size compared to the old USB version.Funduino could srice works which need to operate independently and interactive effective of electronic appliances,also can srice those connected with the PC,in collaboration with Flash,Processing,the Max/Msp,the PD,vvvv and other software.
Feature:
Microcontroller

Atmel ATmega328
Operating Voltage (logic level)

5 V
Input Voltage (recommended)

7-12 V
Input Voltage (limits)

6-20 V
Digital I/O Pins

14 (of which 6 provide PWM output)
Analog Input Pins

8
DC Current per I/O Pin

40 mA
Flash Memory

32 KB (of which 2KB used by bootloader)
SRAM

2 KB
EEPROM

1 KB
Clock Speed

16 MHz

Self-Made Feature:
1, HID interface, say no more driver again.
2, Support windows 7 system.
 
PICkit 3 Features
USB (Full speed 12 Mbits/s interface to host PC)
Real-time execution
MPLAB IDE compatible (free copy included)
Built-in over-voltage/short circuit monitor
Firmware upgradeable from PC/web download
Totally enclosed
Supports low voltage to 2.0 volts (2.0v to 6.0v range)
Diagnostic LEDs (power, busy, error)
Read/write program and data memory of microcontroller
Erase of program memory space with verification
Freeze-peripherals at breakpoint
Program up to 512K byte flash with the Programmer-to-Go
The MPLAB PICkit 3 allows debugging and programming of PIC®and dsPIC®Flash microcontrollers at a most affordable price point using the powerful graphical user interface of the MPLAB Integrated Development Environment (IDE). The MPLAB PICkit 3 is connected to the design engineer\'s PC using a full speed USB interface and can be connected to the target via an Microchip debug (RJ-11) connector (compatible with MPLAB ICD 2, MPLAB ICD 3 and MPLAB REAL ICE).
 
Pakcage List:
1 PICKIT3
1 USB cable
1 6pin cable

Self-Made Feature:
1, HID interface, say no more driver again.
2, Support windows 7 system.
 
PICkit 3 Features
USB (Full speed 12 Mbits/s interface to host PC)
Real-time execution
MPLAB IDE compatible (free copy included)
Built-in over-voltage/short circuit monitor
Firmware upgradeable from PC/web download
Totally enclosed
Supports low voltage to 2.0 volts (2.0v to 6.0v range)
Diagnostic LEDs (power, busy, error)
Read/write program and data memory of microcontroller
Erase of program memory space with verification
Freeze-peripherals at breakpoint
Program up to 512K byte flash with the Programmer-to-Go
The MPLAB PICkit 3 allows debugging and programming of PIC®and dsPIC®Flash microcontrollers at a most affordable price point using the powerful graphical user interface of the MPLAB Integrated Development Environment (IDE). The MPLAB PICkit 3 is connected to the design engineer\'s PC using a full speed USB interface and can be connected to the target via an Microchip debug (RJ-11) connector (compatible with MPLAB ICD 2, MPLAB ICD 3 and MPLAB REAL ICE).
 
Pakcage List:
1 PICKIT3
1 USB cable
1 6pin cable

Pro Micro ATmega32U4  5V 16MHz Replace ATmega328 for rduino Pro Mini
 
 
 
The Pro Micro is similar to the Pro Mini except with an ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on-board and do away with bulky external USB interface.
 
This tiny little board does all of the neat-o For rduino tricks that you're familiar with: 4 channels of 10-bit ADC, 5 PWM pins, 12 DIOs as well as hardware serial connections Rx and Tx. Running at 16MHz and 5V, this board will remind you a lot of your other favorite For rduino-compatible boards but this little guy can go just about anywhere. There is a voltage regulator on board so it can accept voltage up to 12VDC. If you're supplying unregulated power to the board, be sure to connect to the "RAW" pin on not VCC.
 
    This latest revision corrects the silk error from the last version of the board so that pin 14 is correctly labeled. We've also added a PTC fuse and diode protection to the power circuit and corrected the RX and TX LED circuit.
 
     Dimensions: 1.3x0.7"
 
 
 
     Features:
 
ATMega 32U4 running at 5V/16MHz
Supported under rduino IDE v1.0.1
On-Board micro-USB connector for programming
4 x 10-bit ADC pins
12 x Digital I/Os (5 are PWM capable)
Rx and Tx Hardware Serial Connections

2.42 inch OLED display module SPI serial port 201a LED display 12864 LCD screen SSD1309

Description:
- 3.5inch TFT LCD Module, Resolution 480x320
- Designed with a TF card socket on the back of board so that you can conveniently insert a card.
- not Support touch screen function.
- It is used to repair faulty screen: display problems, dead pixels, cracked LCD screens, wrong color issues.
- Highly recommend professional installation.
Specification:
- Size: 3.5\"
- Screen material: TFT
- Resolution: 320X480
- Interface mode: parallel 8 bit
- Module pin: 8 8 6 6
- Module size: Approx. 55x 83mm/ 2.17x 3.27inch
- Touch: Yes
Package Includes:
1 Piece 3.5 inch TFT LCD Screen Shield

3.5 inch TFT color screen module 320x480 Ultra High Definition LCD screen supports UNO mega2560 DUE
Controller: ili9481, ili9468, ili9488, hx8357, r61581
Resolution: 480x320
Provide test program

Features:
●Carefully optimized circuit, communication rate up to 12Mbps
●TTL compatible with 5V level
●Onboard DC 5V power interface, 500MA current output, improve load capacity.
●Onboard EROM, which can be configured to JRAG/SPI and other interface forms through FT PROG software.
●All available IOs are all exported.
●Each serial port has an independent transceiver indicator LED, which is convenient to observe the status of the serial port
●Immersive gold PCB, lead-free process, with M3 mounting screw holes
●Four serial ports are connected at the same time, you can observe data at the same time,
Parameters:
Supply voltage: power supply (5.0V)
Current: 50MA
Baud rate: 1200-921600
Transmission rate: 12MBPS
Working temperature: -40--85 degree
Interface Description:
VCC: power supply (5.0V)
RXD: The receiving pin of the module's own port (TTL level, not directly connected to RS232 level!) can be connected to the TXD of the MCU
TXD: The receiving pin of the module's own port (TTL level, not directly connected to RS232 level!) can be connected to the RXD of the MCU
GND: Ground
Pin function:
The pins that must be connected for normal communication:
1. USB interface: to connect to a computer or host computer, it must be connected. Turn the power selection switch to the V-USB side to get power from the USB.
2.TX A/B/C/D: Serial data transmission pin (refers to the module's own data outflow→, corresponding to the RX. data reception of the external device.)
3. RX A/B/C/D: Serial data receiving pin (refers to the module's own data input ←, corresponding to the external device's TX. data transmission.)
4. GND: power ground (GND must be connected and must not be wrongly connected, otherwise it may damage the device or serial port module)
The following pins are not necessary for communication, you can decide whether to connect according to your needs
1. IO leads on both sides: including flow control pins such as CTS/RTS/DCD/RI/DSR and 5V/3.3V power supply leads to the serial port, generally not used, please decide whether to connect or not according to your needs.
2. Due to electrical characteristics, the RX pins on the IOs on both sides cannot be used for communication, but can only be used for measuring signals. For communication, please use the RX on the white XH2.54 terminal. Other IOs can be used normally
3. In the factory test, the TX/RX are directly connected and can be removed during use.
Note:
1. This is a 5V/3.3V TTL level serial port, please do not connect RS 232 level equipment ( -5V to -15V)
2. When this module is powered by USB, the load must not exceed 500mA, otherwise the module or computer USB may be overloaded and damaged (communication only requires three GND/TX/RX wires).

10W:
Output power: 5V/9V
Output power: 5W/7.5W/10W
Transmission distance: 3MM across the article, 8MM across the article
Charging efficiency: 75%
Charging protocol: QI standard
15W:
Output power: 5V/9V/12V
Output power: 5W/7.5W/10W/15W
Transmission distance: 5MM across the article, 10MM across the article
Charging efficiency: 75%
Charging protocol: QI standard

fixed：Potentiometer fixed
separation：Potentiometer separation
product description:
The tuning board uses dual op amp (large S NE5532 or OPA2604) chips, dual power AC and DC and battery can be used, if DC power supply is connected in series, use at least dual 6V, 10W power supply, single power AC and DC can be used Note that a single battery power supply cannot be used.
Power supply: dual 12-22V
There are four models to choose from: 1. Big S NE5532 fixed version. 2. Big S NE5532 separated version. 3. Fixed version of OPA2604. 4. Separate version of OPA2604

fixed：Potentiometer fixed
separation：Potentiometer separation
product description:
The tuning board uses dual op amp (large S NE5532 or OPA2604) chips, dual power AC and DC and battery can be used, if DC power supply is connected in series, use at least dual 6V, 10W power supply, single power AC and DC can be used Note that a single battery power supply cannot be used.
Power supply: dual 12-22V
There are four models to choose from: 1. Big S NE5532 fixed version. 2. Big S NE5532 separated version. 3. Fixed version of OPA2604. 4. Separate version of OPA2604

10000W 25A Speed Controller High Power SCR Voltage Regulator Dimmer Switch Speed Temperature Control Thermostat AC 110V 220V
Specifications:
Voltage: AC 110- 220V
Maximum Power: 10000W (connected resistive load,220VAC)
Voltage Regulation: AC 10V to 220VAC
Dimensions: 130x60x45mm(LxWxH)
Rated current:25A MAX 45A
For Electric furnace, water heater, lamps, small motor, electric iron etc.
Application:
Electric furnace, water heater, the lamps and lanterns that move light, small motor, solder iron temperature control and so on(Inductive or capacity load power should be reduced, the voltage regulator is equipped with two-way high-power hysteresis, don't add any component can use , very convenient and practical.)

37Pcs/lot Sensor Module Board Set Kit For Arduino Diy Kit Raspberry Pi 3/2 Model B 37 Kinds Of Temperature Sensor / Hit / Laser

STM32G031F8P6 development board small system core board learning board

The upgraded version adds LDO and level conversion, which can directly supply power from 1.8-5V
The old version can only be powered by 1.8V, and customers can choose it by themselves.
The SGP30 is a metal oxide gas sensor with multiple sensing elements on a single chip. It integrates 4 gas sensing elements and has a fully calibrated air quality output signal. In addition, SGP is easy to integrate and enables the integration of metal oxide gas sensors into mobile devices, opening up new possibilities for environmental monitoring in smart home, appliance and IoT applications.
SGP30 Module Specifications
Working power supply voltage: upgraded version 1.8-5V, old version 1.62V-1.98V
Power consumption: 40MA
Dimensions: 12mm x 12mm x 1.6mm
Interface Type: I2C

PLJ-0802 Embedded intelligent frequency meter designed specifically for the HAM frequency measurement instruments.
Its small and exquisite, simple, reliable, mainly for DIY transceiver for frequency value display can also be used for conventional frequency measurement.
Micro chip's 8-bit microcontroller PIC16F648A as the core of the high-performance 1.2GHz frequency meter.
Built-in frequency reference using temperature compensated voltage-controlled crystal oscillator (± 2.5 ppm VC-TCXO).
Dual IF design, IF and add / subtract mode can be individually preset.
LCD0802 LCD screen display, up to 7 digits can be displayed, the frequency value is invalid zero automatic blanking.
Anti-power reverse design, low-power battery-powered programs.
Double-button control, good man-machine interface.
The settings are automatically saved, the next boot directly call.
Technical Parameters:
Gate time:0.64 sec
Measuring range: 1 MHz to 1.2 GHz
Measurement accuracy: ± 100Hz
Channel Sensitivity: (HM8134-2 data)
Test Frequency (MHz): 5 10 30 60 100 150 200 300 450
Sensitivity (mV RMS): 35 20 10 3 3 4 8 15 12
Test Frequency (MHz): 500 550 600 700 800 900 1000 1100 1200
Sensitivity (mV RMS): 14 30 65 80 80 35 175 270 310
Operating voltage:DC input: DC 9V ~ 12V (reverse polarity protection with power supply)
Operating current:Enable backlight: ≤ 55 mA
Display digits:The highest 8 digits are displayed
Physical dimensions:Length × width × height: 58mm × 32mm × 27mm
IF settings:IF adjustable minimum step of 100 Hz, the range of 0 to 999.9999 MHz, can be set to increase the IF or reduced IF mode.
Frequency reference:The 13000-MHz temperature-compensated voltage-controlled crystal oscillator (VC-TCXO) in a 5032 package has a frequency stability of ± 2.5 ppm.
Onboard interface:
RF INPUT (measurement signal input): XH2.54-2P square mouth socket
ICSP INPUT (MCU programming interface): XH2.54-6P pin
POWER INPUT (power connector): XH2.54-2P square port socket
Package List:
1* PLJ-0802-E frequency counter meter

Pico is a low-cost, high-performance microcontroller development board with flexible digital interfaces. In terms of hardware, it adopts RP2040 microcontroller chip independently developed by Raspberry Pi, equipped with ARM Cortex MO dual-core processor, running at up to 133MHz, built-in 264KB SRAM and 2MB memory, and has up to 26 onboard Multifunctional GPIO pins. In terms of software, you can choose the C/C SDK provided by the Raspberry Pi, or use MicroPython for development, and there are complete development materials and tutorials, which can be easily developed and embedded in the product.
\ The main features are:
\ 1. Adopt RP2040 microcontroller chip officially designed by Raspberry Pi
\ 2. Equipped with dual-core ARM Cortex M0 processor, running frequency up to 133MHz flexible clock
\ 3. Built-in 264KB SRAM and 16MB on-chip Flash
\ 4. USB1.1 host and device support
\ 5. Support low power sleep and hibernate mode
\ 6. Can be recognized as mass storage via USB for drag-and-drop download program
\ 7. Up to 30 multi-function GPIO pins
\ 8. 2 SPI, 2 12C, 2 UART, 4 12-bit ADC, 16 controllable PWM channels
\ 9. Accurate on-chip clock and timer
\ 10. Temperature sensor
\ 11. On-chip accelerated floating-point library
\ 12. 8 programmable I/0 (PIO) state machines for custom peripheral support
\ 13. MicroPython firmware has been burned, and MicroPython can be used for development directly

MACH3 5 Axis CNC Breakout Board Stepper Motor Driver Module Optocoupler Isolated Engraving Machine Board 12V-24V With USB Cable
Description:
1.fully support of MACH3 and other computer software support for parallel port control.
2.USB power supply and peripherals powered phase separation to protect computer security.
3.peripheral wide voltage input,12-24V.and anti-reverse function.
4.all of the input signal.all the light lotus isolated.which can be accessed emergency stop on the knife.the limit to protect computer security.
5.all the way to the relay output port.control spindle switch. Output port P17 mouth.
6.all the way through the optocoupler isolated 0-10V analog voltage output can be controlled with the corresponding analog interface converter to control the spindle speed. Output port P1 port.
7.open all 17 ports.which can be accessed with the optocoupler drive.5-axis stepper motor can be controlled.
8.P1 as PWM outputs can be controlled with optocoupler input spindle governor.
9.can be accessed by a common cathode or common anode input level to 5V drive.
Package Included:
1 x 5 axis CNC Breakout Board with optical coupler for Stepper Motor Driver MACH3
1 x USB cables

Instructions for use:
Power supply voltage: 5V
AOUT: analog output, the change of the voltage value corresponding to the gas detected by the chip, the microcontroller can directly use the ADC to connect.
DOUT: digital output value, which is the result of comparing AOUT and the output voltage value of the adjustable resistor. Output semaphores 0 and 1.
Adjust the adjustable resistance of the module. When the output voltage of the adjustable resistance is less than AOUT, DOUT outputs a high level and the LED light is on; otherwise, DOUT outputs a low level and the LED light is off
Size: 15mm X25mm
Weight: 2.56g
Notes on using the module:
When it needs to be used, it is necessary to warm up the module for 3-5 minutes, and then perform related measurements.
Connect with the microcontroller:
VCC——5V MCU GND——MCU GND
AOUT - AD input pin of the microcontroller
DOUT - any available pin of the microcontroller

Description
Charging voltage: DC 4.5V-5.5V (recommended DC 5V)
Charging current : 0-2.1A
Charging quiescent current: 100uA
Full voltage: 4.2V -1% .
Discharge current: 0-3.5A;
Discharge quiescent current: 50uA
Discharge efficiency: 96% maximum
Output voltage: 5V
Output current: 0-2.1A;
Ambient temperature: -20° to 85°
Module with lithium battery protection function (for lithium battery without
protection, with protection board)
Overcurrent protection (OCP)
Overvoltage protection (OVP)
Short circuit protection (SCP)
Over temperature protection (OTP)
Charge and discharge power level 4 interval indication
Package Included
1 Pcs  5V2A Charging Board

Specifications:
Model: Tracking Sensor Module
Working voltage:5V
Channel: 8-channel
PCB Color: Red
 
Application:
1. for Robot
2. for Smart Car
3. for Laboratory
4. for Arduino DIY Kit
 
Package Included:
1 x Tracking Sensor Module

Shipping list
1. Long pin header X 2
2.Short pin header X 2
3. Pin header X 2
4. mini D1 ESP32 x 1
Download:
https://github.com/MHEtLive/ESP32-MINI-KIT/tree/master/Shield% 20libraries
http://forum.mhetlive.com/category/2/devkit-minikit-testing
Module size: about 40mm*34mm
Reminder: Manual measurement may cause errors, please understand

Features:
Uses two 8-channel ULN2803APG darlington arrays chip to control relay module.
It is a 16-channel relay interface board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc.
It is also able to control various appliances and other equipments with large current.
Relay output maximum contact is AC250V 10A and DC30V 10A.
Standard interface can be directly connected with microcontrollers.
The working status indicator lights are conducive to the safe use.
Widely used for all MCU control, industrial sector, PLC control, smart home control.
Specifications:
Working voltage: 12V 5V
Channel: 16 channel
Item size: 17.6 * 9 * 1.7cm / 6.93 * 3.54 * 0.67in
Package Included:
1PCS*16-Channel 12V Relay Shield Module with optocoupler LM2576 Power supply for Arduino

Features:
Uses two 8-channel ULN2803APG darlington arrays chip to control relay module.
It is a 16-channel relay interface board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc.
It is also able to control various appliances and other equipments with large current.
Relay output maximum contact is AC250V 10A and DC30V 10A.
Standard interface can be directly connected with microcontrollers.
The working status indicator lights are conducive to the safe use.
Widely used for all MCU control, industrial sector, PLC control, smart home control.
Specifications:
Working voltage: 12V 5V
Channel: 16 channel
Item size: 17.6 * 9 * 1.7cm / 6.93 * 3.54 * 0.67in
Package Included:
1PCS*16-Channel 12V Relay Shield Module with optocoupler LM2576 Power supply for Arduino

Five-way tracing module tracing sensor
 
product Introduction:
A tracking module with the most functions.
 
BFD-1000 is a cost-effective and multi-functional tracking module created by NewWay electronics for the vast number of friends who want to make tracking robots. This module is enough to cope with daily tracking tasks, it also has infrared distance detection sensor and touch detection sensor, which enables the robot you designed to adapt to more situations.
 
BFD-1000 is specially designed for searching black (white) lines, which is especially suitable for the detection of complex black and white lines and crossing black and white lines. It has 6 high sensitivity infrared sensors (5 line patrol, 1 Road Barrier prevention), can accurately identify black and white lines, it has the following functions and features:
1.BFD- 1000 integrated 5 high sensitivity tracking sensor, the environmental impact of small, can accurately complex black (white line) for tracking, for the simple black line tracking is more excellent performance.
2.BFD- 1000 integrated way infrared barrier sensor unblinded distance can slide rheostat adjusting.
3.BFD- 1000 with a specially designed the touch detection sensor so that the round-trip of the robot design easier.
4.BFD- 1000 output signals are all for the digital signal (high and low level) to facilitate connected with the single-chip microcomputer.
5.BFD- 1000 all of the sensor output states have LED LAMP as an indication, to facilitate debugging.
6.BFD- 1000 supports voltage is 3.0-5.5v meet most system requirements.
7. With high sensitivity sensor, the tracking range can be arbitrarily changed between 0.5 and 40mm without any adjustment.
 
Reasons for choosing NewWay tracking sensor:
1. The module integrates 7 sensors reasonably, which is super cost-effective.
2. The sensor is reasonably arranged on one module, and no more DuPont wires are needed when connecting, which makes your design simple and elegant, and reduces the probability of fan errors, you can also find errors more quickly when troubleshooting errors, saving time and effort.
3. Excellent after-sales service ensures that you can use this module correctly, and excellent routines ensure that you can use this module to make the works you need.
 
Technical parameters:
detection distance: 0-4cm (black and white line sensor) 0-5cm (distance detection adjustable)
input voltage: 3.0-5.5V
output form: digital output (high and low levels)
information:  https://pan.baidu.com/s/1boNjNP1
the sensor placement distance of this tracking module was also tested in menorrhagia competition
this is the application of BFD-1000 premiere version in the competition (open it in the browser after copying)
http://v.youku.com/v_show/id_XMjE4NzIwMzQ4.html

40A 60A No Voltage Limitation Ideal Diode Module Solar Energy Anti Reverse Irrigation Battery Charging Anti Backflow Protection
1: Widely used
2: High performance-price ratio
3: The operation is simple and easy to understand
4: Several types are available to meet different customer needs
5: Small appearance
Main feature:
*It only needs to be connected in series to the positive pole of the circuit, and does not need to be connected to the negative pole.
*There is no input voltage limit. (Ensure that the reverse voltage is lower than 40V)
*300A high current MOS tube, one tube can pass 40A current, two tubes can pass 60A current
*1.1 milliohm on-resistance, low loss, low heat generation
*2US quickly responds to reverse polarity conditions, input and output are equivalent to diodes. Detect that the output voltage is greater than the input and immediately turn off the output, the detection value is in the millivolt level, and the corresponding speed is very fast
*-40-125 degrees working environment temperature
Model: SZ-40100
Circuit board size: 50*34mm
Copper foil thickness: 1.5oz
Use:
Replace ordinary high-current diodes, batteries, solar panels, anti-reflow and anti-reflow. Connecting in series with the input end of the power supply is an ideal choice for anti-reverse connection.
Precautions:
*The input voltage is unlimited, but there is a reverse voltage requirement, and the reverse voltage is lower than 40V. The voltage of the output terminal cannot be higher than the input voltage 40V, for example: the input is connected to a 24V power supply, the output is connected to a battery, and it can be connected to 12V, 24V, 36V, 48V, 60V batteries, and cannot be connected to batteries above 72V. 72V output -24V input = 48V. Reverse voltage It's higher than 40V.
*The wire with no terminal can be welded below 6 square, and the terminal with terminal can also be welded from the bottom.

Dear, in order to ensure the latest information, the product does not come with CD-ROM, please go to the official website to download the information, the product information download address: usr.cn/Product/98.html (copy to the browser to open, click "Download")
USR-ES1 embeds Wiznet W5500 chip, uses hardware logic gate circuit to realize the transport layer and network layer of TCP/IP protocol stack (such as: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE and other protocols), and integrates The data link layer, physical layer, and 32K bytes of on-chip RAM are used as data sending and receiving buffers. The main control chip of the host computer only needs to undertake the processing task of the control information of the TCP/IP application layer. This greatly saves the workload of the host computer for data replication, protocol processing and interrupt processing, and improves system utilization and reliability.
During the operation, the user can use the W5500 as a peripheral RAM of the MCU, which is very easy. The external interface of W5500 is a general 80MHz high-speed SPI, which can be used by different platforms to expand high-speed Ethernet solutions. The auto-negotiation LED status shows that the SPI interface is fast and stable.
Dimensions and pins are compatible with the official Wiznet module WIZ820io
Note: This module is not an SPI-to-Ethernet transparent transmission module, it needs to be used by an external microcontroller, and the user needs to understand the use of the W5500 chip.
Features:
80MHz high-speed SPI interface
Built-in hardware TCPIP protocol stack, users hardly need to master complex network protocol knowledge
Support up to 8 Socket connections
Support TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE protocols
Integrated data link layer, physical layer
Support power-down wake-up
Support high-speed serial peripheral interface (SPI mode 0~3)
Internal 32K bytes transceiver buffer
Embedded 10BaseT/100BaseTX Ethernet Physical Layer (PHY)
Support auto-negotiation (10/100-Based full duplex/half duplex)
IP fragmentation is not supported
3.3V working voltage, I/O signal port 5V withstand voltage
LED status display (full/half duplex, network connection, network speed, activity status)
Ultra-small pin package for embedded applications
Provides application routines for C
Product Features:
Power supply mode: 3.3V external power supply, the current should be greater than 200mA
Control interface form: 3.3V TTL level, SPI interface; 2* single row of pins
PCB size (MM): 23*25mm
Mechanical Dimensions (L*W*H): 28.5*23*24 mm

Description: This is a low cost ESP8266 WIFI development board for Arduino. 0.96" OLED display on the board, easy for beginners, can be programmed for Arduino, project support the ESP8266 chip for Arduino environment, for Arduino core ESP8266 WiFi chip, another famous project is NodeMCU. The NodeMCU can be used to control ESP8266. Feature: All ESP8266 pin decomposition 12 digital pin write/read/interrupt/pwm / I2C / single line support (except D0) 1 analog input 0.96" OLED Micro USB Interface Compatible for Arduino, NodeMCU, WeMos Input power supply 4.75V~12V Size: 6.2x2.7cm / 2.44x1.06inch Note: Due to manual measurement, please allow an error of 1-2cm. Please make sure you don't mind before bidding. Due to the differences between the different displays, the image may not reflect the actual color of the project. Thank you! Package Included: 1 * ESP8266 ESP-12F CP2102 WIFI Module 0.96 inch OLED Display Development Board 1 * 10 pin 1 * 16 pin

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

1. All components are selected from new first-class products, and the input and output terminals are selected with high-current terminals, which are very convenient for wiring.
2. The op amp uses NE5532P (OPA2604AP can be upgraded), and the IC seat can be replaced at any time. Feel the effects of different op amps and improve the playability.
3. The LED indicator light is designed to monitor the power status in real time.
4. The PCB of this board is designed for double-sided wiring, which is simple and beautiful, and the wiring is reasonable, which makes the board have a very high signal-to-noise ratio and strong anti-interference ability. Almost no noise can be heard near the speaker when there is no signal input. No noise can be heard.
Power supply voltage: DC10-30V single power supply direct current
Frequency range: 22Hz-300Hz
Audio Input: Mono or Dual
Audio output: Mono
PCB specification: 85x32mm, thickness: 1.6mm
PCB material: super hardness FR-4 glass fiber board
Board fixing hole center spacing: 78x24mm, hole diameter: 3.5mm
Potentiometer shaft center spacing: 32.5mm
Chip-level power amplifier: There is basically no place to debug the pre-stage, post-stage, and front and rear integrated machines. The manufacturer of the internal parameters of the chip has set the normal values. As long as the parameters of the peripheral components are normal and there are no welding errors, the success rate is very high. The effect is also very good.