Cathode Dealers

For a long time we’ve had small 7-segment displays andhuge 7-segment displays, but now we finally have something in between. These 20mm 4-digit 7-segment displays are big enough to see from a distance but not so big that you’d have trouble finding an enclosure for them. 4-digit 7-segment displays are really neat little devices, it's a shame that they can be so cumbersome to control. Well Sparkfun have solved that problem by making them a little bit "smarter." The 7-Segment Serial Display combines a classic 4-digit 7-segment display and an ATMega328 microcontroller allowing you to control every segment individually using only a few serial lines. The Serial 7-Segment Display can be controlled in one of three ways: Serial TTL communication, SPI serial communication or I2C serial. You can even program it for stand-alone operation since the ATMega328 comes pre-loaded with the Arduino bootloader! There is also an FTDI header on board and Sparfun have provided a hardware profile for the Arduino IDE to make it even easier to program. These common-cathode displays feature 4 x 7-segment digits and one decimal point per digit. The LEDs have a forward voltage of 1.9VDC and a max forward current of 20mA. Design a clock, timer or counter into your next project using our pretty 4-digit seven-segment display. These bright crisp displays are good for adding numeric output. Besides the four 7-segments, there are decimal points on each digit and an extra wire for colon-dots in the center (good for time-based projects).

Thanks to a consumable upgrade also users with older HiFocus units may benefit from powerful copper cathodes for cutting mild steel. There is no modification of hardware required. Customers with the plasma torches PerCut 200/201/2010/211 or PerCut 440/450/451 can exchange easily their former cathodes for new copper cathodes. Advantages of the upgrade for the users: Cost reduction due to significantly lower price than for former cathodes Reduction of cutting metre costs Conservation of resources because of copper material Reduction of tied up funds due to more economic consumables and its stockage

We are in a position to offer copper cathode from our China office. We are tied up with a leading Government mill who produce the cathode.

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