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Name: New TL-Smoother V1.0 addon module For 3D pinter motor drivers
Filter Size:40*30mm
Dupont Line Length:115mm
 
The TL-Smoother is an addon module for 3D printer stepper motor drivers.
The board provides flyback diodes (freewheeling diodes) for the motor outputs, so that they are also protected against induction voltages in the unpowered state of the driver.
You will got smoother movement especially on the delta-style 3Dprinter under DVR8825 stepper driver and A4988/2 drivers.
Lower vbration lower noise smoother result！
 
TL-Smoother assembly instructions：
https://drive.google.com/open?id=1Kdq4FKcv4PRkuYbeoWxF_myPKDdfZud9XCIloQEaLqs
 
 

1set 10pcs Alligator Clips Electrical DIY Test Leads Alligator Double-ended Crocodile Clips Roach Clip Test Jumper Wire

HX711 Dual-channel 24-bit A/D Conversion Weighing Sensor Module with Metal Shied
Specification:
 Two selectable differential input channels
On-chip active low noise PGA with selectable gain of 32, 64 and 128
On-chip power supply regulator for load-cell and ADC analog power supply
On-chip oscillator requiring no external component with optional external crystal
On-chip power-on-reset
Simple digital control and serial interface: pin-driven controls, no programming needed
Selectable 10SPS or 80SPS output data rate
Simultaneous 50 and 60Hz supply rejection
Current consumption including on-chip analog power supply regulator: normal operation < 1.5mA, power down < 1uA
Operation supply voltage range: 2.6 ~ 5.5V
Operation temperature range: -40 ~ 85°
16 pin SOP-16 package

3 series 12V 18650 Lithium battery protection board 11.1V 12.6V prevent overcharge 10A overcurrent protection hot

Size: 22.3mm*17mm*4.2mm
Input Voltage:5.3V-26V
Output Voltage:5V
Output Current: 3A(Max)
Working Temperature:-40c-85c
Switching Frequency: 1.5MHz
Conversion efficiency: 96%

5V 2A Power Bank Charger Module Charging Circuit Board Step Up Boost Power Supply Module 2A Dual USB Output 1A Input

Description: This is a breakout board for Freescale's MPR121QR2. The MPR121 is a capacitive touch sensor controller driven by an I2C interface. The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode. The MPR121 also features eight LED driving pins. When these pins are not configured as electrodes, they may be used to drive LEDs. There a four jumpers on the bottom of the board, all of which are set (closed) by default. An address jumper ties the ADD pin to ground, meaning the default I2C address of the chip will be 0x5A. If you need to change the address of the chip (by shorting ADD to a different pin, make sure) you open the jumper first. Jumpers also connect SDA, SCL and the interrupt pin to 10K pull-up resistors. If you don't require the pull-up resistors you can open the jumpers by cutting the trace connecting them. There is no regulation on the board, so the voltage supplied should be between 2.5 to 3.6VDC. The VREG pin 2.5 and is connected through a 0.1uF capacitor to ground, which means, unless you modify the board, you can't operate the MPR121 in low-supply voltage mode (1.71-2.75VDC). Specification: Material Alloy Plastic Application Capacitive Touch Sensor Controller Working Voltage 2.5-3.6V Dimensions (6 cm x 3 cm x 2 cm)

v

0.96 inch
SIZE 0.96inch 
Display Mode Normally black IPS
Display Format Graphic 80RGB*160 Dot-matrix
Input Data SPI interface
Drive IC ST7735S
Dimensional outline 24(W)*30 (H)*2.8 /-0.1(T)mm
Resolution 80RGB*160 Dots
LCD Active area 10.8 (W)*21.7 (H)
Dot pitch 0.135(H) x 0.1356(V) mm
Viewing Direction All View
Operating Temperature -20～70°C
2.Pin Descriptions:
PIN No Symbol Description
1 GND Ground
2 VCC Power 3.3V
3 SCL Serial clock pin.
4 SDA Serial data input
5 RES LCM Reset pin
This pin is reset signal input. When the pin is low, initialization of the chip is
executed. Keep this pin pull high during normal operation.
6 DC Data/Command Control
7 CS Chip Select
8 BLK Backlight control pin
 
 
1.3 inch
1.Features
 
Display Mode Normally black IPS
Display Format Graphic 240RGB*240 Dot-matrix
Input Data SPI interface
Drive IC ST7789VW
Dimensional outline 27.78(W)*39.22 (H)*3.0 /-0.1(T)mm
Resolution 240RGB*240 Dots
LCD Active area 23.4 (W)*23.4 (H)
Dot pitch 0.0975(H) x 0.0975(V) mm
Viewing Direction All View
Operating Temperature -20～70°C
2.Pin Descriptions:
PIN No Symbol Description
1 GND Ground
2 VCC Power 3.3V
3 SCL Serial clock pin.
4 SDA Serial data input
5 RES LCM Reset pin
This pin is reset signal input. When the pin is low, initialization of the chip is
executed. Keep this pin pull high during normal operation.
6 DC Data/Command Control
7 BLK Backlight control pin  
 
 

0.96 inch
SIZE 0.96inch 
Display Mode Normally black IPS
Display Format Graphic 80RGB*160 Dot-matrix
Input Data SPI interface
Drive IC ST7735S
Dimensional outline 24(W)*30 (H)*2.8 /-0.1(T)mm
Resolution 80RGB*160 Dots
LCD Active area 10.8 (W)*21.7 (H)
Dot pitch 0.135(H) x 0.1356(V) mm
Viewing Direction All View
Operating Temperature -20～70°C
2.Pin Descriptions:
PIN No Symbol Description
1 GND Ground
2 VCC Power 3.3V
3 SCL Serial clock pin.
4 SDA Serial data input
5 RES LCM Reset pin
This pin is reset signal input. When the pin is low, initialization of the chip is
executed. Keep this pin pull high during normal operation.
6 DC Data/Command Control
7 CS Chip Select
8 BLK Backlight control pin
 
 
1.3 inch
1.Features
 
Display Mode Normally black IPS
Display Format Graphic 240RGB*240 Dot-matrix
Input Data SPI interface
Drive IC ST7789VW
Dimensional outline 27.78(W)*39.22 (H)*3.0 /-0.1(T)mm
Resolution 240RGB*240 Dots
LCD Active area 23.4 (W)*23.4 (H)
Dot pitch 0.0975(H) x 0.0975(V) mm
Viewing Direction All View
Operating Temperature -20～70°C
2.Pin Descriptions:
PIN No Symbol Description
1 GND Ground
2 VCC Power 3.3V
3 SCL Serial clock pin.
4 SDA Serial data input
5 RES LCM Reset pin
This pin is reset signal input. When the pin is low, initialization of the chip is
executed. Keep this pin pull high during normal operation.
6 DC Data/Command Control
7 BLK Backlight control pin  
 
 

1. Introduction
Light brightness automatically changes.
This is a DIY Heart Shape breathing lamp kit parts . You need solder it by yourself.
2.Parameter
NO.

Parameters

Value
1

Name

Heart shape led
2

Operating voltage

DC 4-6V
3

Difficulty of welding machine

Easy
4

Circuit board size

50.7*50.7mm
5

Packing weight

13g/kit
3. Warm tips
This is the delivery suite of parts, you need welding installation. SCM has written code, successfully tested.
4.Schematic
5.Component listing
NO.

Component Name

PCB Marker

Parameter

QTY
1

Metal Film Resistor

R5

22R

1
2

Metal Film Resistor

R6

10K

1
3

Metal Film Resistor

R1,R2,R4

47K

3
4

Metal Film Resistor

R3

100K

1
5

Electrolytic Capacitor

C1

47UF

1
6

Potentiometer

VR1

50K

1
7

LM358

U1

DIP-8

1
8

Power Switch

S1

6P

1
9

S8050

Q1

TO-92

1
10

LED

LED1-LED22

5mm

22
11

PCB



1
NOTE:Users can complete the installation by PCB silk screen and component listing.

 
XL7015 DC-DC step-down module is a highly efficient, high-voltage step-down DC- DC converter that can deliver up to 0.8A output current capability, low ripple, excellent line regulation and load regulation, input voltage to a maximum of 80V, far more than 2596 modules. Chip built a variety of protection mechanisms. It can be applied to electric vehicle controllers.
 
1. 5V to 80V wide input voltage range;
 
2. The output voltage is adjustable from 5V to 20V;
 
3. The minimum pressure drop 1V;
 
4. The maximum switching current of 0.8A;
 
5. Recommended output power less than 7W;
 
6. Built-in thermal shutdown protection, output short circuit protection, overcurrent protection;
 
7. The excellent linearity and load regulation;
 
Hardware introduction and notes
Board size: 16mm * 44mm;
 
Wiring
1. VIN: input voltage (5V-80V);
 
2. GND: the input voltage ground terminal;
 
3. VOUT: Output voltage terminal (5V-20V);
 
4. GND: output voltage of the ground terminal;
 
 

5A PWM
Specifications:
Operating voltage: DC4.5V-35V
Output current: 0-5A
Output power: 90W (max)
Quiescent current: 7uA (standby)
PWM duty cycle: 1% -100%
PWM frequency: 20khz
Size: 30mm x 26mm x 14mm (Without Handle)
Precautions:
DC motor governor input is DC, can not directly connected to the AC (for example: home 220V AC), otherwise it will burn!
DC power supply positive and negative terminals do not reverse, otherwise the governor may be damaged.
The motor can be positive or negative, when the direction of operation and expectations do not match, you can adjust the line order to change the direction.
Adjust the potentiometer knob to change the governor output duty cycle, the motor speed changes.
 
 
MINI 5A PWM
Incorporate a 30V 2.5A fuse, and with the protection function of reverse connect power supply.
It is not only to use for dc motor controls of the speed,but also to use for adjust the LED light.
Adjustable speed range is 1% -100% .
Operating Voltage: DC3V-35V
Control Power: 90W (maximum)
Quiescent Current: 0.015A (standby)
PWM Duty Cycle: 1% -100%
WM Frequency: 10khz
Size: 24*30mm/0.94*1.18"

5A PWM
Specifications:
Operating voltage: DC4.5V-35V
Output current: 0-5A
Output power: 90W (max)
Quiescent current: 7uA (standby)
PWM duty cycle: 1% -100%
PWM frequency: 20khz
Size: 30mm x 26mm x 14mm (Without Handle)
Precautions:
DC motor governor input is DC, can not directly connected to the AC (for example: home 220V AC), otherwise it will burn!
DC power supply positive and negative terminals do not reverse, otherwise the governor may be damaged.
The motor can be positive or negative, when the direction of operation and expectations do not match, you can adjust the line order to change the direction.
Adjust the potentiometer knob to change the governor output duty cycle, the motor speed changes.
 
 
MINI 5A PWM
Incorporate a 30V 2.5A fuse, and with the protection function of reverse connect power supply.
It is not only to use for dc motor controls of the speed,but also to use for adjust the LED light.
Adjustable speed range is 1% -100% .
Operating Voltage: DC3V-35V
Control Power: 90W (maximum)
Quiescent Current: 0.015A (standby)
PWM Duty Cycle: 1% -100%
WM Frequency: 10khz
Size: 24*30mm/0.94*1.18"

Description 100% Brand new and high quality.
Product Shape: Same as the picture show
1. Supporting the D1 MINI
2. The Arduino Compatible, Using Arduino IDE Programming
3. 11 the XI/O Pins
4. 1 XADC Pin (0-3.3 - V)
5. Support the OTA online
 

1. Quantity : 3pcs
 
2. Material : Aluminum
 
3. Color : Black / Silver / Blue
 
4. Size : As picture
 
5. Use for : Raspberry Pi 4 Model B
 
6. Raspberry Pi 4 is not included

1. Quantity : 3pcs
 
2. Material : Aluminum
 
3. Color : Black / Silver / Blue
 
4. Size : As picture
 
5. Use for : Raspberry Pi 4 Model B
 
6. Raspberry Pi 4 is not included

1. Quantity : 3pcs
 
2. Material : Aluminum
 
3. Color : Black / Silver / Blue
 
4. Size : As picture
 
5. Use for : Raspberry Pi 4 Model B
 
6. Raspberry Pi 4 is not included

 

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;

 

 
 
 Features: 
Working Voltage: 3.7V Lithium Battery 600MA or 5V USB Power Supply 
Chip:GPD2846A 
Chip Footprint:SOP16 
PCB Size:34.23MM*22.33MM*1MM 
with 2W Mixed mono 
With Power supply ,it can play Automaticly 
With LED indicator 
Supports MP3 format playback 
Supports USB audio mode 
Supports 3 types FM radio chip : RDA5807, BK1080 and RTC6207E. 
Does not support infrared remote control. 
Does not support USB device mode
 

1. Panel Size: 75*85mm.
2. Length: 18CM.
3. Insulation Resistance:100M Ω 100V.
4. Withstand Voltage:250V Rms.(50-60Hz lmin)
5. Storage Temperature: 15°- 35°.
6. Storage Humidity:70-90.

Feature:
Max.sensitivity: 570nm
Semi sensitivity angle: /-60degree
 
Package Included:
1 * TEMT6000 Light Sensor TEMT6000 Professional Light Sensor Module for Arduino

One Channel Wemos D1 Mini Relay Shield Wemos D1 Mini Relay Module for Arduino ESP8266 Development Board

Parameters:
Circuit board: 1.6mm thick, 48mm diameter
Supply voltage: 5V DC voltage.
Function Introduction:
The circuit of this set adopts sound control of 10 LED flowing light, which can show the function of CD4017 intuitively. It is a set of learning counter, frequency divider and color light controller.At the same time, the kit has a good effect, very interesting and practical,.
 
Schematic diagram:

 
This board is helpful for connecting digital systems (like a 5V microcontroller) to a high-voltage or noisy system. This board electrically isolates a controller from the high-power system by use of an opto-isolator IC. This IC has four LEDs and four photodiodes built-in. This allows the low-voltage side to control a high voltage side We often use this board to allow a microcontroller control servos or other motors that use a higher voltage than the TTL logic on the (3.3V or 5V) micro, and may cause electromagnetic interferance with our system as the motors turn on and off. This board will isolate the systems, creating a type of electrical noise barrier between devices This breakout board uses the TLP281 optoisolator and discrete transistors to correct the logic. Comes with four channels. Great for use in noisy circuits where signal lines require electrical isolation A normal LED opto-isolator will invert the logic of a signal. We threw some transistors on this compact board to correct the inversion. What you put into the IN pins, will be replicated on the the OUT pins, but at the higher voltage (HV) Features: Use of low level control high level. Such as the use of single chip microcomputer 3V or 5V voltage 9V or 12V voltage control HVCC maximum not more than 24V. Outlet OUT1 / OUT2 / OUT3 / OUT4 output current is equal to the largest HVCC / 5.1K, maximum absorption current 500mA Input: IN1 / IN2 / IN3 / IN4, SCM or for Arduino IO port, GND with single-chip microcomputer or for Arduino board GND connection. IN1 / IN2 / IN3 / IN4 respectively control the OUT1 / OUT2 / OUT3 / OUT4 Output: OUT1 / OUT2 / OUT3 / OUT4 Output: HVCC: Connection is control of high voltage anode, HGND connection is control of high voltage anode PCB Size: 25*24mm/0.98*0.94

Description:
1. This is a breakout board for the very handy 16-Channel Analog/Digital Multiplexer/Demultiplexer CD74HC4067. This chip is like a rotary switch - it internally routes the common pin (COM in the schematic, SIG on the board) to one of 16 channel pins (CHANxx). It works with both digital and analog signals (the voltage can't be higher than VCC), and the connections function in either direction. To control it, connect 4 digital outputs to the chip's address select pins (S0-S3), and send it the binary address of the channel you want (see the datasheet for details). This allows you to connect up to 16 sensors to your system using only 5 pins!
2. Since the mux/demux also works with digital signals, you can use it to pipe TTL-level serial data to or from multiple devices. For example, you could use it to connect the TX pins of 16 devices to one RX pin on your microcontroller. You can then select any one of those 16 devices to listen to. If you want two-way communications, you can add a second board to route your microcontroller's TX line to 16 device's RX lines. By using multiple boards, you can create similar arrangements for I2C, SPI, etc.
3. The internal switches are bidirectional, support voltages between ground and VCC, have low “on” resistance and low “off” leakage, and to prevent crosstalk, perform “break-before-make” switching. The board also breaks out the chip's “enable” pin, which when driven high, will completely disconnect the common pin (all switches “off”).
 
Features:
2V to 6V operation
“On” resistance: 70 Ohms @ 4.5V
6ns break-before-make @ 4.5V
Wide operating temperature range: -55C to 125C
Function: gathering all the way ADC 16 analog signals.
Use CD74HC4067 16-channel analog signal switch
Analog Input: C0-C15 16 channels
Analog output: DIG
Channel Control: S0-S3

1 PCS H81 5V700mA (3.5W) Isolated Switch Power Supply Module AC-DC Buck Step-down Module 220V Turn 5V

1 package include :
2pcs x black 40pin Gold-plated Single Row Straight Male Pin Header
2pcs x white 40pin Gold-plated Single Row Straight Male Pin Header
2pcs x red 40pin Gold-plated Single Row Straight Male Pin Header
2pcs x yellow 40pin Gold-plated Single Row Straight Male Pin Header
2pcs x blue 40pin Gold-plated Single Row Straight Male Pin Header

Warm prompt:
 
Dear buyer, Our cheapst transportation services Econmic category logistics (SunYou Economic Air Mail , China post Ordinary Small Packet Plus) can be traced only befor it arrive your country , please choose Standard category logistics if you want a full tracking info.
 
For example:
like this

Sound when power is on
Foot pitch is about 7.6MM
Buzzer Active DC 3V (red label) -5V blue label -12V black label long tone

only the box ,no with board !!

Notice: The new tracking number for China Post Ordinary Small Packet Plus can be traced only befor it arrive the airport of your country,please choose China Post Air Mail if you want a full tracking info.
 
Tracking info of  China Post Ordinary Small Packet Plus can be check here: www.17track.net/en
 
Product Details
FM Stereo Radio Module RDA5807M RRD-102V2.0 Wireless Module Pro New for Arduino
Article-Nr.:5400777
Product Details:
Stereo Module
Condition: New
Overview: 
"RRD-102V2.0" stereo radio module (FM Stereo radio Module) high sensitivity, low power consumption,ultra- small size of the FM stereo radio module.Using RDA Microelectronics of RDA5807M(or RDA5802NM),this circuit fewer external components,the noise factor is minimal. Small size,low power consumption,low cost,simple application,the use of a wide range of advantages.Is an easy-to-use and possessed highly cost-effective single-chip FM stereo radio module.
A: Move DVD,TV,MP3,MP4 and other built-in FM wide-band wireless receiver module. 
B: mining,business,campus,residential,tourist areas and other public places,stereo FM radio
system. 
C: wireless audio and wireless stereo headset functionality. 
D: GPS navigation, TV broadcasting systems and other wireless FM radio.
E: high-end game consoles and wireless audio electronic toys.
F: mobile phones,mobile phones,intercom systems,mobile radio devices and other stereo radio.
G: PDAS and Notebook PC and other peripheral applications.
 
Function:
A: using a common 102BC module package,users can directly replace the use,without changing the circuit design. 
B: high sensitivity,low noise,anti-interference ability,very few external components,small size (11*11.2MM Max),extremely simple to use. 
C: 76-108MHz FM band worldwide compatible(76-91MHz,including Japan,America and Europe 87.5-108.5MHz). 
D: I2C serial data communications bus interface,support for external reference clock input.
E: COMS technology fully integrated single-chip integrated circuits,power consumption is minimal.
F: built-in high-precision A/D(analog) and digital frequency synthesizer.
G: built-in LDO regulator,low power,wide voltage range(2.7-3.6VDC). 
H: built-in noise reduction, soft mute,bass boost circuit design.
I: 32 load high power audio output,headphone connections are direct,no external audio driver amplifier. 
J: the application is simple,low cost,cost-effective.
Color : show as pictures
PLS NOTE that due to lighting effects, monitor's brightness / contrast settings etc, there could be some slight differences in the color tone of the pictures and the actual item!

 
Detecting range:
3cm-4M
      
Best in 30 degree angle
      
Electronic brick compatible interface
      
5VDC power supply
      
Breadboard friendly
      
Dual transducer
      
library ready
      
Specification:
      
Working Voltage: 5V (DC)
      
Static current: Less than 2mA.
      
Output signal: Electric frequency signal, high level 5V, low level 0V.
      
Sensor angle: Not more than 15 degrees.
      
Detection distance: 2cm-450cm.
      
High precision: Up to 0.3cm
      
Working tempter:-20C___ 60C
      
Weight: 10g
      
Size: 45x 21mm (L x W)
 
 SR04 Connector 4Pin:
 
   VCC  
 
   Echo
 
   OUT
      
   GND
 
 
      
 SRF05 Connector 5Pin:
      
      VCC
      
      Trig (T)
      
      Echo(R)
      
      OUT
      
      GND
   

 
Detecting range:
3cm-4M
      
Best in 30 degree angle
      
Electronic brick compatible interface
      
5VDC power supply
      
Breadboard friendly
      
Dual transducer
      
library ready
      
Specification:
      
Working Voltage: 5V (DC)
      
Static current: Less than 2mA.
      
Output signal: Electric frequency signal, high level 5V, low level 0V.
      
Sensor angle: Not more than 15 degrees.
      
Detection distance: 2cm-450cm.
      
High precision: Up to 0.3cm
      
Working tempter:-20C___ 60C
      
Weight: 10g
      
Size: 45x 21mm (L x W)
 
 SR04 Connector 4Pin:
 
   VCC  
 
   Echo
 
   OUT
      
   GND
 
 
      
 SRF05 Connector 5Pin:
      
      VCC
      
      Trig (T)
      
      Echo(R)
      
      OUT
      
      GND
   

 
Warm prompt:
 
Dear buyer, Our cheapst transportation services Econmic category logistics (SunYou Economic Air Mail , China post Ordinary Small Packet Plus) can be traced only befor it arrive your country , please choose Standard category logistics if you want a full tracking info.
 
For example:
like this

 
Free Shipping 40pcs dupont cable jumper wire dupont line male to male dupont line 20cm 1P 40P for arduino