Seven Segment LED Board

The EPT-ACSA02-LD-X2 is a breakout board that includes one Seven Segment LED.
This Board provides a simple interface to control each segment of the LED Display
for a total of 8 LEDs from any MCU (including the Arduino family). It is designed to
connect directly to the standard bread board with a reduced footprint. Once connected to
an MCU, the MCU can provide a sink for each LED.

The Seven Segment LED board uses one ACSA02-41SGWA-F01 manufactured by
Kingbright. The Display is 0.2 inch digit height. It has low current operation and
excellent character appearance. The Super Bright Green source color devices are made
with Gallium Phosphide Green Light Emitting Diode.

Hardware Features:

Stand Alone Bread Board Compatible
Seven Independently controlled LEDs
Uses the ACSA02-41SGWA-F01 LED Disply Chip
Designed for +3.3V Control, Each LED has a pre-selected Current Resistor
Each LED is sink controlled from any MCU including Arduinos
Each LED connected to SMT pin on bottom of Board

Description

Each LED current limiting resistor is calculated to provide 5mA in each
of the LED Segments. These current limiting resistors cannot be changed
The ACSA02-41SGWA-F01 chip is a current sink and can be connected to any MCU.
The anode should be connected to +3.3V. The reason for this is the Series resistors
are calculated for current limiting based on +3.3V. Changing the anode
voltage to another source will change the brightness emitting from each LED. Because
the ACSA02-41SGWA-F01 chips are current sink, the user can connect to either +5V or +3.3V
Arduino (or other MCUs) and control each LED.

LED Electrical Specifications

Each LED current limiting resistor is calculated to provide 5mA in each
of segment of the LED Display. So, the current for each leg:

Parameter	Emitting Color	Value	Units
Peak Wavelength	Super Bright Green	565	nm
Dominant Wavelength IF = 10mA	Super Bright Green	568	nm
Spectral Bandwidth at 50%	Super Bright Green	30	nm
Forward Voltage IF = 10mA	Super Bright Green	2.0	V
Reverse Current (VR = 5V)	Super Bright Green	10	uA

Easily Control Seven Segment LED Display from an Arduino

The Seven Segment LED Board comes with example software that blinks
individual LEDs from the External MCU (Such as the Arduino Mini Pro). The user
can display characters using each LED Display. The MCU will provide pulse width
modulated control for each LED. Changing the duty cycle of each LED changes the
overall brightness of each segment of the LED Display.

Downloads

85-000040	Seven Segment LED Board User Manual	LED_SEVEN_SEGMENT_BOARD_UM_V1.pdf
95-000040	Seven Segment LED Board DataSheet	LED_SEVEN_SEGMENT_BOARD_DS_V2.pdf
45-000040	Seven Segment LED BoardProjects DVD	SEVEN_SEGMENT_LED_PROJECT_1.0_DVD.ZIP
55-000040	Seven Segment LED Board Schematics	LED_SEVEN_SEGMENT_SCHEMATIC_V1.pdf

$9.99

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