mydemop1

october 8 test post.

 

 

• 100% brand new and high quality
  
• Features:
  100% Brand new and high quality!
  This expansion board as a driver expansion board, can be used for engraving machines, 3D printers.
  It is a total of four slots, can drive four A4988 stepper motor. Each road stepper motors only need two IO ports. In other words, six IO ports can be well managed three stepper motors. Very convenient to use.
  UNO for Arduino module IO port correspondence introduction.
  Best choice for yourself or your friend.You will not be disappointed!

• Size:
  6.8×5.2cm/2.68×2.05inch
  2×1.5cm/0.79×0.59inch
  6.8x 5.3cm/2.68×2.09inch
  
• Quantity: 1 Set
  
• Note:
  1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
  2. Please allow 0.5-1cm measuring deviation due to manual measurement.
  1 cm = 0.3937 “

 

• 100% brand new and high quality
  Material: Metal
  Color: See the picture
  Product information
  This is a 5 pcs 10K ohm Linear Taper Rotary Potentiometer Panel pot B10K.
  
• Features:
  Resistance:10K
  Adjustment Type:Top Adjustment
  Maximum Power:0.5W
  Maximum Voltage:200V
  Type:Linear
  Interface: 3PIN
  Type：B
  Shaft length ：15MM, including the screw thread
  Accuracy: ± 20%
  Size: See the picture
  No retail package
  Quantity:5Pcs
  
• Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!!

 

Testing for 4th of october.

 

 

• 100% brand new and high quality
  
• Description:
  
• Red line: Power input + 12V
  
• Yellow line: OUT + 12V power output
  
• Black line: OUT -12V power output
  
• 1.Bipolar design: three-wire connection, and the load capacity 100W
  2.Automatic sensors: one to switch immediately turned (one event will last turn), who left after the delay off automatically
  3.Relay switch: can withstand high current output, high power load
  4.Automatic random delay (continuous delayed mode): People in the induction scope activity, the switch is always turned off automatically lose if the stationary switch off automatically. Adjustable delay time
  5.Adjustable delay time: 10 seconds -350 seconds
  6.Ultra Low Power: Switch own power <0.0088W/h (annual power consumption of <0.077 degrees) than other brands of similar products more energy-saving
  7.Lightning Features: Special lightning protection devices, can effectively prevent lightning and other transient high pressure on the switch damage
  8.Induction: Passive
  9.Operating Voltage: DC12V
  10.Induction Principle: Humanbody infrare
  11.Quiescent Current: 50uA
  12.Sensing Distance: 3 to 5m
  13.Load Capacity: Maximum: 100W, inductive loads require half the power usage down
  14.Induction Angle: About 120 degrees, 100 degrees up and down
  15.Load Range: Various types of DC LED lamps, load
  16.Ambient Temperature:-20℃ to +50℃
  
• Based on infrared technology, automatic control products, when someone enters switch sensing range, special sensors to detect changes in the human body infrared spectrum, switch automatically switches the load, do not leave the sensing range (who are active), the switch will continue to turn; person left, switch off automatically load delay. People to light, people from the lights out, kind convenient, safe energy
  
• Quantity:1pc

test post for 2017 in october again.

 

 

• 100% brand new and high quality
  
• If you’ve ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up
• 3.3V to 5V at the same time. This level converter also works with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side
  
• The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the ‘HV’ pin, low voltage (3.3V for example) to ‘LV’, and ground from the system to the ‘GND’ pin
  Compatible with 5-3V system
  
• VIN connected 5V system power supply
  
• 5A connected 5V system
  
• 5B connected 5V system
  
• GND connected 5V system GND
  
• 3V3 connected 3V system power supply
  
• 3A connected 3V system
  
• 3B connected 3V system
  
• GND connected 3V system GND
  
• Size: 28 x 19mm / 1.1 x 0.74 inch
  
• Quantity: 1pc

Thisis a test post.