Introduction Large numerical displays are a great addition to any project where you want to be able to see information at a distance. Scorekeepers and lap timers would be a great application for large 7-segment LED displays. The fits that bill nicely. Driving several displays at the same time would be handy, which is where the comes in. The Large Digit Driver can be soldered directly to the bottom of the 7-Segment Display.

♦ Drive Common-Cathode LED Display. 8-Digit LED Display Drivers 6 _____ Detailed Description MAX7219/MAX7221 Differences The MAX7219 and MAX7221 are. LED Display Drivers are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for LED Display Drivers.

Serial-interfaced 6-digit LED controller with keyscan. LED driver with 14 outputs (8 segments/6 digits). LED 6-digit 7-segment (+dot-point) display panel CLK STB.

Several Large Digit Drivers can be chained together to create a display with multiple digits. Covered in This Tutorial In this tutorial, we will give you an overview of the Large Digit Driver and provide an example of hooking up the driver to an Arduino: • – To begin, we’ll go over each of the pins on the breakout board and their function.

• – In this section, we’ll show you how to hook the Large Digit Driver up to an Arduino. • – Here, we give an example of an Arduino sketch to control one of the large 7-segment displays through the Large Digit Driver. • – We show how to daisy chain two large 7-segment displays together and control them with two Large Digit Drivers. • – This section gives some additional resources for getting more out of the Large Digit Driver.

Materials Used You will need a few components and tools to follow along with this tutorial. Here is what you will need: For each additional digit you want to add, you will need: • • • Recommended Reading Before getting started with the Large Digit Driver, there are a few concepts that you should be familiar with.

Consider reading some of these tutorials before continuing: • – We will use an Arduino to control the Large Digit Driver • – The Large Digit Driver uses a shift register to move data to each digit • – You will need to solder the Large Digit Driver to the back of the 7-segment LED display. Board Overview Pin Descriptions The Large Digit Driver has 6 input pins and 6 output pins. Hardware Hookup Protect the Board Before you attach the Large Digit Driver to the 7-segment display, you will need to isolate the exposed vias on the back of the board. Some of the Driver boards are created with through-hole vias that are not covered with solder mask. As a result, this could likely short out the traces on the back of the 7-segment display. We recommend using a piece of or to cover the vias on the back of the Driver board. Attach the Board You will need to solder the Large Digit Driver to the back of the 7-segment display.

Have the Driver’s 10 pins facing toward the bottom of the large 7-segment display and lined up with the traces on the back of the 7-segment display. Beatmania Iidx 16 Empress Ps2 Iso. Follow the to solder all 10 of the castellations as well as the 2 castellations at the top of the board (these should be attached to the 12V line and are just for mechanical support).

Connect the Board We will be using the Arduino’s regulated 5V and unregulated 12V (from the wall adapter) to power the 7-segment display and Large Digit Driver. Connect the Large Digit Driver to the the following pins on the Arduino. Large Digit Driver Arduino GND GND LAT 5 CLK 6 SER 7 5V 5V 12V VIN. In 2003, CU student Nate Seidle blew a power supply in his dorm room and, in lieu of a way to order easy replacements, decided to start his own company. Since then, SparkFun has been committed to sustainably helping our world achieve electronics literacy from our headquarters in Boulder, Colorado. No matter your vision, SparkFun's products and resources are designed to make the world of electronics more accessible. In addition to over 2,000 open source components and widgets, SparkFun offers curriculum, training and online tutorials designed to help demystify the wonderful world of embedded electronics.