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Description:
Size:65mm*65mm
Voltage:DC 5V
Interface:IO
8*8=64RGB
Chip:WS2812b
Package Included:
1 x  64 LED Matrix WS2812
 

 
1. Parameters:
No.

Parameter

Value
1

Name

Five direction navigation button module
2

The number of IO

7
3

Operating voltage

2.0V-9.0V
4

Size

25mmx41mm
5

Operating temperature

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

Pin

Function

Remark
1

COM

Common end

VCC or GND connected to the MCU development board
2

UP

Up direction button

Connect to IO pin of the MCU
3

DWN

Down direction button

Connect to IO pin of the MCU
4

LFT

Left direction button

Connect to IO pin of the MCU
5

RHT

Right direction button

Connect to IO pin of the MCU
6

MID

Middle direction button

Connect to IO pin of the MCU
7

SET

Set button

Connect to IO pin of the MCU
8

RST

Reset button

Connect to IO pin of the MCU
 
 

Product Name: TF / Bluetooth Digital Amplifier
Product model: XH-A233
Input voltage: DC12-24V
 
Audio input: support TF card and Bluetooth
Bluetooth signal: 0-15 meters (unobstructed)
Number of channels: two channels
Output power: 2*15W
 
Appearance size: 55*50*12mm
Installation size: 49*44/®3mm
 
Product heavy star: 16g
 
Priority play TF Card
 
Key Function:
 
 
Prev / V-: short press to switch the previous song, long press to decrease the volume
Prev / V : Short press to switch the next song, long press to increase the volume
 

1 Channel Relay Module with Optocoupler
Description:
100% brand new and high quality
1-Channel relay module, with photoelectric isolation
The module can be high or low by a jumper setting trigger
With power and relay action indicator
The module Operating voltage 5V
The module uses genuine quality relay, normally open interfaces
Maximum load: AC 250V/10A, DC 30V/10A
Module interface:
    DC : positive power supply (VCC)(5V)
    DC-: negative power supply (GND)
    IN: The control end, the driving current should be more than 4mA
    COM: The control of loop of earth wire

1 Channel Relay Module with Optocoupler
Description:
100% brand new and high quality
1-Channel relay module, with photoelectric isolation
The module can be high or low by a jumper setting trigger
With power and relay action indicator
The module Operating voltage 5V
The module uses genuine quality relay, normally open interfaces
Maximum load: AC 250V/10A, DC 30V/10A
Module interface:
    DC : positive power supply (VCC)(5V)
    DC-: negative power supply (GND)
    IN: The control end, the driving current should be more than 4mA
    COM: The control of loop of earth wire

1 Channel Relay Module with Optocoupler
Description:
100% brand new and high quality
1-Channel relay module, with photoelectric isolation
The module can be high or low by a jumper setting trigger
With power and relay action indicator
The module Operating voltage 5V
The module uses genuine quality relay, normally open interfaces
Maximum load: AC 250V/10A, DC 30V/10A
Module interface:
    DC : positive power supply (VCC)(5V)
    DC-: negative power supply (GND)
    IN: The control end, the driving current should be more than 4mA
    COM: The control of loop of earth wire

1 Channel Relay Module with Optocoupler
Description:
100% brand new and high quality
1-Channel relay module, with photoelectric isolation
The module can be high or low by a jumper setting trigger
With power and relay action indicator
The module Operating voltage 5V
The module uses genuine quality relay, normally open interfaces
Maximum load: AC 250V/10A, DC 30V/10A
Module interface:
    DC : positive power supply (VCC)(5V)
    DC-: negative power supply (GND)
    IN: The control end, the driving current should be more than 4mA
    COM: The control of loop of earth wire

 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

 
1PCS 1.3" OLED module white color 128X64 1.3 inch OLED LCD LED Display Module For 1.3" IIC I2C Comunicate
 
 
 

Module Highlights:
1 5A power high-efficiency buck low ripple!
2 with power indicator light!
3 onboard voltage meter, voltmeter can be self-calibration, it will never exist voltmeter problem of inaccurate! !
4 with heat sink!
5 Get pillars free!
Module performance and features:
 
 with power indicator light
 With voltmeter shows and voltmeter can be self-calibration. It uses a more advanced microprocessor voltage voltmeter error ± 0.05V, Range 0 ~ 40V. (Note: To ensure the accuracy of voltmeter, please ensure that the input voltage is above 4.5V)
 touch of a button to switch measuring input or output voltage, and has a light show which is being measured voltages, and save the settings, even if powered off and then on.
 voltmeter can be closed when not needed touch of the button on the left side can be easily achieved.
 With terminals, no iron can also be easy to use, and retention wire connection points.
 Input voltage 4.0 ~ 38V. (Input voltage must be higher than the output voltage 1.5v more)
 adjustable output voltage range of 1.25V ~ 35V continuously adjustable. (Input voltage must be higher than the output voltage of 1.5V)
 output current up to 5A, is recommended in 4.5A.
 output power up to 75W.
 high conversion efficiency, up to 96% (efficiency and input and output voltage, current, pressure related)
 Load Regulation S (I) 0.8% , voltage regulation S (u) 0.8%
 with thermal protection and short circuit protection
 Size 60 * 37 * 18mm
 Weight 28g
 

1100 MS1100 MS-1100 VOC Gas Sensor Module Formaldehyde Benzene Concentration Gas Induction 100mA Breakout for

MCP4725 I2C DAC Breakout Board module 12-Bit DAC w/I2C Interface GOOD

 
 Double-Sided Protoboard Breadboard Universal Board 5cm x 7cm for
 
 
 

5X7CM Double Side Prototype PCB Breadboard Universal Board For Arduino UNO R3 ESP8266 WIFI ESP-12F ESP-12E ESP32S ESP32 50x70mm
 
 
 
 
 
 
 
 
 
 
 
 

 

SPH0645 I2S MEMS Microphone Breakout Sensor Board Module SPH0645LM4H Microphone Module 1.6-3.6V for Arduino Raspberry Pi
 
 
 
Description:
 
The microphone is a single mono element. You can select whether you want it to be on the Left or Right channel by connecting the Select pin to power or ground. If you need stereo, pick up two microphones! 
You can set them up to be stereo by sharing the Clock, WS and Data lines but having one with Select to ground, and one with Select to high voltage.
 
This I2S MEMS microphone is bottom ported, so make sure you have the hole in the bottom facing out towards the sounds you want to read. It's a 1.6-3.6V max device only, so not for use with 5V logic (its really unlikely you'd have a 5V-logic device with I2S anyways). 
 
Many beginner microcontroller boards don't have I2S, so make sure its a supported interface before you try to wire it up! This microphone is best used with Cortex M-series chips like the for Arduino Zero, for Feather M0, or single-board computers like the for Raspberry Pi.
 
 
 

Highlight:
1. Battery charge and discharge intelligent control
2. You can set the charge and discharge time
3. With serial communication function, real-time monitoring of the working status of the relay through the serial port
4. Additional signal output, when the relay to meet the conditions, the output high, you can control other equipment.
5. A key emergency stop function (STOP button), with reverse protection, reverse does not burn.
 
Operating mode:
Voltage upper limit: UL1, voltage lower limit nL1, the voltage upper limit is greater than the voltage lower limit (UL1> nL1)
U-1: Charging measurement: When the measured voltage is lower than the lower limit voltage, the relay pulls above, the upper limit voltage, the relay is disconnected.
U-2: charge measurement time control: set the charging time (OP), when the measured voltage is lower than the lower limit voltage, the relay pull, and then start the countdown OP time, the end of the timer, the relay off, when the measured voltage is higher than the upper limit voltage, The relay is disconnected.
U-3: Discharge detection: When the measured voltage is lower than the lower limit voltage, the relay is off, above the upper limit voltage, the relay pulls
U-4: discharge detection time control: set the discharge time (OP), when the measured voltage is higher than the upper limit voltage, the relay pull, and then start the countdown OP time, the end of the timer, the relay off, when the measured voltage below the lower limit voltage, The relay is disconnected
U-5: voltage in the range, the relay pull: when the measured voltage between the upper and lower limits, the relay pull, the other circumstances open
U-6: voltage outside the interval, the relay pull: the measured voltage below the lower limit voltage or higher than the upper limit voltage, the relay pull, the other case the relay is off.
 
Product parameters:
1: Power supply voltage: DC6--40V, voltage detection range DC 0--60V, suitable for less than 60V of the various batteries, voltage measurement error /- 0.1V.
2: charge and discharge time (OP) range: 0 - 999 minutes.
How do I set parameters?
1. First, according to their needs, to determine the requirements of the work model
2. According to the working mode of the relay, in the main interface (when the module is powered on, it will flash the current mode of operation, the default U-1 mode, and then enter the main interface) press the SET button for 2 seconds and then release, enter the selection Mode interface, UP, DOWN button to select the mode to be set (U-1 ~ U-6)
3. After selecting the mode, assume that we have selected the U-1 mode and press the SET button to set the corresponding parameter. The parameter to be set will flash (UL1 voltage upper limit, nL1 voltage lower limit, OP conduction time), press UP, DOWN Key to increase or decrease, you can always press the key to quickly increase or decrease, press the SET button to set the current mode of the next parameter, the process above
4. Set the parameters, and then press the SET button for 2 seconds to release, the current setting mode will flash, and then return to the main interface, set the parameters of success
5. In the main interface, press the DOWN key to achieve voltage and time switching.
Mode selection interface: press the SET button for a long time to enter the mode selection interface, set the finished, a long time press the SET button and then release the exit mode selection interface, back to the main interface.
 
Additional features:
1. Data upload: through the serial port to achieve data upload, interval 1s upload a voltage and run time, easy to post-data analysis
2. Serial port settings parameters: You can set the mode and parameters through the serial port, more convenient
3. An extra signal output, when the relay to meet the conditions, the output high, the other output low.
Serial port control (TTL level communication)
Communication standard:
The baud rate is 115200 bps
Data bits: 8
Stop bit: 1
Check digit: none
Flow control: none
Serial command:
"U-1": Operating mode (range U-1 to U-6)
"000": 0 - does not enable timing function, non-0 - enable timing function (range 001 to 999)
"Dw02.9": Set the lower limit voltage
"Up10.1": set the upper limit voltage (range 00.0V ~ 99.9V)
"Get": Get the current settings
"On": Allows the relay to turn on
"Off": Always turn off the relay
"Start": start uploading data
"Stop": stop uploading data
 
The above command can be any combination of two, need to be separated by commas
Such as: "dw02.9, up10.1" set the lower limit voltage 02.9V upper limit voltage 10.1V
 
Upload Status: Test Voltage On Time Status
"00.0V, 00: 00: 00, OP/r/n"
00.0V: Measured voltage
00:00:00: Relay on time
Status: OP relay on, CL relay off
 
STOP key function expansion:
Relay enable mode:
1. ON: OP conduction time, the relay allows conduction
2. OFF: The relay is disabled and is always off
Press the STOP button on the main interface to switch between ON and OFF, the current status will flash, and then return to the main interface. (This function is an emergency stop function, a key to disconnect the relay)
Sleep mode:
1. C-P sleep mode: within five minutes, without any operation, the digital tube automatically shut down the display, the program normal operation
2. O-d normal mode: digital tube is always open display
Press and hold the STOP button for 2 seconds to release, to achieve C-P and O-d state of the switch, the current state will flash, and then return to the main interface.

New 1000KV 1000000V Boost Step up High-voltage Generator Ignition Coil Pulse Power Module Igniter DC 3.7V to 6V
 

 
 
12864 LCD Control Panel for 3D Printer Smart Controller RAMPS1.4 LCD
 
 
 
 
 
 
Package Included:
1X 12864 LCD Control Panel
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

Specification:
5 Color in total: Yellow, Blue, Black, Green, Red
Sizes: 1mm, 2mm, 3mm, 4mm, 6mm, 8mm, 10mm, 14mm
Quantity: 328pcs
Material: Polyolefin
Supplied internal diameter: 1mm, 2mm, 3mm, 4mm, 6mm, 8mm, 10mm, 14mm
Fully shrunk internal diameter: 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm
Shrinkage Ratio: 2:1 ( will maximum shrink to 1 / 2 of its supplied diameter )
Minimum Shrinkage Temp: 70c
Full Shrinkage Temp: 110c maximum
Operating Temperature: -55c to 125c
Tensile strength: 10.4 Mpa
Dielectric strength: 15 kV / mm
Flammability: Flame Retardant
Supplied format ( round or flat ): Product is supplied flat
Cutting method: Scissors or sharp knife
Quantity:1 pack(328pcs)
 Note: Due to the difference  between different monitors, the picture may not reflect the actual color of the  item. Thanks for your understanding. 
( Quantity x Supplied internal diameter x Single length ) 
120pcs x 1.0 x 40mm (Yellow,Black,Red,Green) 
60pcs x 2.0 x 40mm (Yellow,Black,Red,Blue) 
40pcs x 3.0 x 40mm (Yellow,Black,Red,Green) 
32pcs x 4.0 x 40mm (Yellow,Black,Red,Blue) 
24pcs x 6.0 x 40mm (Yellow,Black,Red,Green) 
20pcs x 8.0 x 80mm (Yellow,Black,Red,Blue) 
16pcs x 10.0 x 80mm (Yellow,Black,Red,Green) 
16pcs x 14.0 x 80mm (Yellow,Black,Red,Blue) 
Package Includes: 
1x 328PCS(8 Sizes)  Heat Shrink Tubing

Specification:
5 Color in total: Yellow, Blue, Black, Green, Red
Sizes: 1mm, 2mm, 3mm, 4mm, 6mm, 8mm, 10mm, 14mm
Quantity: 328pcs
Material: Polyolefin
Supplied internal diameter: 1mm, 2mm, 3mm, 4mm, 6mm, 8mm, 10mm, 14mm
Fully shrunk internal diameter: 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm
Shrinkage Ratio: 2:1 ( will maximum shrink to 1 / 2 of its supplied diameter )
Minimum Shrinkage Temp: 70c
Full Shrinkage Temp: 110c maximum
Operating Temperature: -55c to 125c
Tensile strength: 10.4 Mpa
Dielectric strength: 15 kV / mm
Flammability: Flame Retardant
Supplied format ( round or flat ): Product is supplied flat
Cutting method: Scissors or sharp knife
Quantity:1 pack(328pcs)
 Note: Due to the difference  between different monitors, the picture may not reflect the actual color of the  item. Thanks for your understanding. 
( Quantity x Supplied internal diameter x Single length ) 
120pcs x 1.0 x 40mm (Yellow,Black,Red,Green) 
60pcs x 2.0 x 40mm (Yellow,Black,Red,Blue) 
40pcs x 3.0 x 40mm (Yellow,Black,Red,Green) 
32pcs x 4.0 x 40mm (Yellow,Black,Red,Blue) 
24pcs x 6.0 x 40mm (Yellow,Black,Red,Green) 
20pcs x 8.0 x 80mm (Yellow,Black,Red,Blue) 
16pcs x 10.0 x 80mm (Yellow,Black,Red,Green) 
16pcs x 14.0 x 80mm (Yellow,Black,Red,Blue) 
Package Includes: 
1x 328PCS(8 Sizes)  Heat Shrink Tubing

Specification:
5 Color in total: Yellow, Blue, Black, Green, Red
Sizes: 1mm, 2mm, 3mm, 4mm, 6mm, 8mm, 10mm, 14mm
Quantity: 328pcs
Material: Polyolefin
Supplied internal diameter: 1mm, 2mm, 3mm, 4mm, 6mm, 8mm, 10mm, 14mm
Fully shrunk internal diameter: 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm
Shrinkage Ratio: 2:1 ( will maximum shrink to 1 / 2 of its supplied diameter )
Minimum Shrinkage Temp: 70c
Full Shrinkage Temp: 110c maximum
Operating Temperature: -55c to 125c
Tensile strength: 10.4 Mpa
Dielectric strength: 15 kV / mm
Flammability: Flame Retardant
Supplied format ( round or flat ): Product is supplied flat
Cutting method: Scissors or sharp knife
Quantity:1 pack(328pcs)
 Note: Due to the difference  between different monitors, the picture may not reflect the actual color of the  item. Thanks for your understanding. 
( Quantity x Supplied internal diameter x Single length ) 
120pcs x 1.0 x 40mm (Yellow,Black,Red,Green) 
60pcs x 2.0 x 40mm (Yellow,Black,Red,Blue) 
40pcs x 3.0 x 40mm (Yellow,Black,Red,Green) 
32pcs x 4.0 x 40mm (Yellow,Black,Red,Blue) 
24pcs x 6.0 x 40mm (Yellow,Black,Red,Green) 
20pcs x 8.0 x 80mm (Yellow,Black,Red,Blue) 
16pcs x 10.0 x 80mm (Yellow,Black,Red,Green) 
16pcs x 14.0 x 80mm (Yellow,Black,Red,Blue) 
Package Includes: 
1x 328PCS(8 Sizes)  Heat Shrink Tubing

Specification:
5 Color in total: Yellow, Blue, Black, Green, Red
Sizes: 1mm, 2mm, 3mm, 4mm, 6mm, 8mm, 10mm, 14mm
Quantity: 328pcs
Material: Polyolefin
Supplied internal diameter: 1mm, 2mm, 3mm, 4mm, 6mm, 8mm, 10mm, 14mm
Fully shrunk internal diameter: 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm
Shrinkage Ratio: 2:1 ( will maximum shrink to 1 / 2 of its supplied diameter )
Minimum Shrinkage Temp: 70c
Full Shrinkage Temp: 110c maximum
Operating Temperature: -55c to 125c
Tensile strength: 10.4 Mpa
Dielectric strength: 15 kV / mm
Flammability: Flame Retardant
Supplied format ( round or flat ): Product is supplied flat
Cutting method: Scissors or sharp knife
Quantity:1 pack(328pcs)
 Note: Due to the difference  between different monitors, the picture may not reflect the actual color of the  item. Thanks for your understanding. 
( Quantity x Supplied internal diameter x Single length ) 
120pcs x 1.0 x 40mm (Yellow,Black,Red,Green) 
60pcs x 2.0 x 40mm (Yellow,Black,Red,Blue) 
40pcs x 3.0 x 40mm (Yellow,Black,Red,Green) 
32pcs x 4.0 x 40mm (Yellow,Black,Red,Blue) 
24pcs x 6.0 x 40mm (Yellow,Black,Red,Green) 
20pcs x 8.0 x 80mm (Yellow,Black,Red,Blue) 
16pcs x 10.0 x 80mm (Yellow,Black,Red,Green) 
16pcs x 14.0 x 80mm (Yellow,Black,Red,Blue) 
Package Includes: 
1x 328PCS(8 Sizes)  Heat Shrink Tubing

MOSFET is an electronic device having excellent switching characteristics, and is widely used in electronic switch circuits required, such as switching power supplies and motor drives, as well as lighting dimming. Relays are very familiar Another module has switching characteristics, but because the working principle of the relay is generally achieved by mechanical contact on and off purposes, which inevitably results in a very short time under the switch, the relay the situation does not work, another Baba sounds when the contact switch in some cases is more annoying thing.
 
Use this module electronic building blocks with Ard uino 4 IRF540 MOSFET switches use the same, but changes to the way the original four. Use reference Ard uino 4-way switch IRF540 MOSFET modules:
 
We designed this four MOSFET switch can provide up to 4 sets of electronic switches, were used to control the different circuit blocks. Affected MOSFET works, the electronic building blocks can be used to control the DC circuit, such as a DC LED screen, etc., are not suitable for controlling the AC circuit. The limit switch can be used to control the MOSFET 100V / 33A DC circuit, but control is not less than the minimum DC voltage proposal 9V.
 
On the circuit connected at one end of the connection is slightly more controlled some trouble. 12V to control the LED lights, for example, first to the positive ( ) and negative (-) connected between the power supply;
 
Then take positive LED lights with the module connected to the positive ( ) and negative LED lights with the connection to the switch 1 (S1);
 
If there are other LED lights with the need to control, the same LED lights with only the positive cathode module is connected to the ( ) and negative LED light strip is in turn connected to the switch 2 (S2), switch 3 (S3), the switch 4 (S4) on;
 
Wire control terminal is much simpler, we only need a sensor cable, the corresponding control port and Ard uino sensor expansion board connected, you can control these by Ard uino 12V LED lights brought. Experiment, we picked up two LED lights.
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

 

 

752 SC16IS752 I2C/SPI bus interface to dual channel UART conversion module
 
 
 

ESP32-WROVER ESP-32 ESP-32S ESP32 WROVER 4MB Module with 32 Mbits PSRAM

 
 
 
 
100% BRAND NEW!
FTDI based USB to TTL Serial Cable are designed using the the standard FT232RL chipset.
The cables provide a fast, simple way to connect devices with a TTL level serial interface to USB.
RX and TX LEDs indicator
The cables are available with a 6-way SIL, 0.1" connector
TTL levels is 3.3V
The TTL-232R cables are a family of USB to TTL serial UART converter cables incorporating FTD's FT232RQ USB to Serial
UART interface IC device which handles all the USB signalling and protocols. The cables provide a fast, simple way to connect
devices with a TTL level serial interface to USB
Each TTL-232R cable contains a small internal electronic circuit board, utilising the FT232R, which is encapsulated into the USB
connector end of the cable. The other end of the cable comes with a selection of different connectors supporting various applications .
Cables are FCC, CE, RoHS compliant and are available at TTL levels 3.3V.
Cables are available with either a 6-way SIL,0.1pitch connector, a 3.5mmAudio Jack, an 8 way, keyed 2mmpitch connector
(intended for use with VMUSIC2 or VDRIVE2) or bare, tinned wire ended connections
The USB side of the cable is USB powered and USB 2.0 full speed compatible. Each cable is
0.8m long and supports a data transfer rate up to 3 Mbaud
Red wire: 5V
Black wire: GND
White wire: RXD
Green wire: TXD
Yellow wire: RTS
Blue wire: CTS
Shipping Included:
1PCS*6pin FTDI FT232RL USB to Serial adapter module USB TO TTL RS232 for Cable

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Function:
2-way button module
2-way LED module
Full Color LED Module
IR receiver module
Brightness sensor module
LM35D temperature sensor module
Passive buzzer module
Rotary potentiometer module
DHT11 temperature and humidity sensor module
One I2C interface (A4 SDA, A5 SCL)
One TTL serial port
Two channel digital ports (D7, D8)
One channel analog port (A3)
Reset button
Feature:
Fully compatible with for Arduino UNO R3 interfaces
Providing for Arduino beginners basic experimental module
A board integrates various modules function
No welding, no connection, you can download the program directly to complete the experiment
Provide all the module code library files, all tested and can be used directly
Set aside expansion port, you can complete other modules experiment

About D1
based on the ESP-8266EX.
Arduin Compatible, you can use it on Arduin IDE.
11 Digital I/O pins
1 Analog Input pin
OTA   -- Wireless Upload(Program)
On board switching power supply -- Max 24V input, 5V 1A output

1pcs NodeMCU V3 Lua WIFI module integration of ESP8266 extra memory 32M Flash, USB-serial CH340G
 

   1×DHT Shield
   2×Long female pins
   2×Short female pins
   2×Normal pins
 

   1×DHT Shield
   2×Long female pins
   2×Short female pins
   2×Normal pins
 

Description:
Voltage:DC4-7V
Communication  interface:Single-wire communication
LED Chip:WS2812B
Conncetion:
5V to 5V
pin 6 to DI
GND to GND
Package Included:
5 X 7 X WS2812 5050 RGB LED