Reviews Cathode Material - BestBuyersPro.com

uxcell Common Cathode 10 Pin 2 Bit 7 Segment 0.59 x 0.55 x 0.28 Inch 0.35\ Red LED Display Digital Tube 5pcs

1.Glassy carbon, or glassy carbon, is a kind of amorphous carbon, which is made by slowly heating polyacrylonitrile resin or phenolic resin to a high temperature (up to 1800 ℃) in an inert atmosphere. It is suitable to be used as an electronic conductor material for electrodes and is also widely used in table tennis.
2.The advantages of glassy carbon electrode are good conductivity, high chemical stability, low coefficient of thermal expansion, hard texture, good air tightness, wide application range of potential (from - 1 to 1V, relative to saturated calomel electrode). It can be made into cylindrical, disc and other electrode shapes. It can also be used as the matrix to make mercury film glassy carbon electrode and chemically modified electrode.
3.Glassy carbon electrode is one of the widely used working electrodes. It is a good inert electrode with good conductivity, high hardness, high finish, high hydrogen overpotential, wide polarization range and chemical stability. It can be used as inert electrode for anodic stripping, voltammetric determination of cathode and variable valence ions, and can also be used as chemically modified electrode.
4.The glassy carbon surface must be mirror and clean. Since the surface of glassy carbon is easily polluted....

5mm Super Bright Piranha LED - RGB - Common Cathode (Ships from US).
Size: 5mm Piranha / Superflux LED, Color: Red/Green/Blue (RGB), Luminosity: 9,000-11,000 mcd.
Forward Voltage: R(1.8-3.5) B(3.0-3.5) G(3.0-3.5), Current: 20mA, Wavelength: N/A RGB Common Cathode.
Viewing Angle: 100-120 Degrees, MountStyle: Through Hole (DIP), Lens Color: Clear.
Super bright LEDs, used for mods, RC, adruino, cars, HO Scale models, planes, trucks, adafruit projects, halloween, christmas, PC, Ultra Light, etc....

5mm Super Bright Piranha LED - RGB - Common Cathode (Ships from US).
Size: 5mm Piranha / Superflux LED, Color: Red/Green/Blue (RGB), Luminosity: 9,000-11,000 mcd.
Forward Voltage: R(1.8-3.5) B(3.0-3.5) G(3.0-3.5), Current: 20mA, Wavelength: N/A RGB Common Cathode.
Viewing Angle: 100-120 Degrees, MountStyle: Through Hole (DIP), Lens Color: Clear.
Super bright LEDs, used for mods, RC, adruino, cars, HO Scale models, planes, trucks, adafruit projects, halloween, christmas, PC, Ultra Light, etc....

Type:Common Cathode(Note:5643 Series may be Common Cathode or Common Anode, Be suject to part number).
Five different LED Display 7 Segment are available to satisfy your different needs..

Super Bright 9 LED Flashlights: Material is made of aluminum and covered with rubber, which is soft to the touch and durable. Provide you with plenty of light in the dark night and last for a long time..
Easy to Carry: Kid flashlight are so handy and lightweight to keep in a desk drawer, car, or purse. Nylon lanyard is convenient to hang in any place. Ideal for every day carries and use in all kinds of indoor and outdoor activities..
Various Colors: The package includes Total 4 Packs of 9 LED Flashlights, green, yellow, blue, pink. Runs on 3 AAA batteries but Not Included. Simple on/off push button operation which is on the back of the flashlights..
Kindly Note: Please notice anode and cathode on the battery carrier when installing the batteries. And be sure to distinguish the top(Anode) and bottom(Cathode) of the battery carrier, the flashlight won't work if the carrier is inserted upside down..
100% satisfied: If you have any disappointing part, after-sale team will solve your problem and provide satisfied service within 24 HOURS..

MAX7219 is an integrated serial input / output common-cathode display driver, which connects your microprocessor to a 7-segment digital LED display with 8 digits.
MAX7219 digital display control module, you can use it..
The module is compatible of 5V / 3.3V microcontroller.
Only three IO ports are used to drive the eight digit display..
Only three IO ports are used to drive the eight digit display. MAX7219 supports flicker free displays as well as cascading displays.
PCV board four corners of the fixed copper stud, which can effectively precent short circuit accidents happen..
Wiring instructions (a program, for example, you can pick any IO port definition can be modified in the program): VCC to 5V, GND to GND, DIN to P00, CLK to P02, CS to P01.
Digital tube is 0.36 inch 4-bit integrated cathode digital tube.
Note:VCC and GND do not reversed, it would burn the chip.51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines..

【Super Bright 9 LED Flashlights】 Material is made of aluminum and covered with rubber, which is soft to the touch and durable. Provide you with plenty of light in the dark night and last for a long time..
【Easy to Carry】 Kid flashlights are so handy and lightweight to keep in a desk drawer, car, or purse. A nylon lanyard is convenient to hang in any place. Ideal for everyday carries and use in all kinds of indoor and outdoor activities..
【Widely Use】 Runs on 3 AAA batteries but is Not Included. The simple on/off button operation is located on the back of the flashlight. The mini flashlight is suitable for outdoor activities, hiking, adventure, camping, night fishing, walking, hunting, etc..
【Kindly Note】 Please notice the anode and cathode on the battery carrier when installing the batteries. And be sure to distinguish the top(Anode) and bottom(Cathode) of the battery carrier, the flashlight won't work if the page is inserted upside down..
【100% satisfied】 If you have any disappointing part, the after-sale team will solve your problem and provide satisfactory service within 24 HOURS..