The AS1107 LED Driver IC can drive a 7 segment display or an 8x8 matrix of LEDs. The AS1107 does this in addition to adding SPI control, daisy chaining capability, and single resistor brightness control. The AS1107 also takes care of refreshing the LEDs so the microcontroller isn’t burdened with this task as well. All this and there is a ready-made Arduino library for this IC.
This kit comes with everything you need to make and control an LED Matrix from your own microcontroller. It comes with all the SMD parts pre-soldered. All you need to do is solder the header pins and the LED Matrix to the board. This kit can also be a great way to practice through-hole soldering.
• Red 8x8 3mm LED Matrix • Runs on 2.7v to 5.5v with AS1107 from AMS • Ready to use Arduino Library: http://playground.arduino.cc/Main/LedControl • Easy to use • Daisy Chain up to 8 modules with no additional wiring or library modifications. o More than 8 modules may be daisy chained, however this isn't supported in the stock Arduino library. It has been done before and the Arduino forums should be helpful if this is what you are looking to do. Also the more modules affect performance. View my findings here: http://www.mobilewill.us/2013/04/led-matrix-wedding-and-twitter.html • The brightness can be adjusted in software and you can change the 33k resistor to set the max brightness. The current 33k Ohm resistor allows you run 3-4 from USB power. Using the USB Tester and OLED Backpack I measured 225mA for 2 displays fully on at max brightness. (I was actually able to do all 8 but it reduced the brightness a tad.)
• PCB with AS1107 • 8x8 LED Matrix • Right angle female header (unsoldered) • Right angle male header (unsoldered)
LED Matrix Link
- Brands FriedCircuits
- Product Code: KIT-0004
- Availability: 3