Digilent 6002-410-006 - Manual (Page 2)

Digilent myDigital™ Reference Manual
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Page 2 of 2
2 Power Supply
The myDigital can be powered from the myDAQ or power can be brought onto the breadboard through the
external power jack. The connector is a standard coaxial power connector (5.5 mm × 2.1 mm) commonly available
on DC wall adapters (17 VDC max). An onboard regulator supplies fixed 3.3 or 5 VDC (jumper configurable) from
this external power. Both the raw external power and the regulated power are available at the terminal block
(Vext and Vreg).
3 Switches and Displays
3.1 Switches
Switches S0 through S3 are slide switches that provide +5 V (1) at the respective terminal block contacts when in
the ON position and GND (0) when in the OFF position. Current limited with 200 Ω series resistor.
3.2 Buttons
Buttons B0 through B3 are push-button switches that provide +5 V (1) at the respective terminal block contacts
when pushed and GND when released. Current limited with 200 Ω series resistor.
3.3 Discrete LEDs
Individual LED indicators arranged to create three configurations: two "traffic light" style patterns (R1, Y3, G1 and
R0, Y1, G0), a horizontal series of a single color (Y3, Y2, Y1, Y0), and a "die" pattern (R1, Y3, G1, Y2, R0, Y1, G0).
LEDs can be energized by connecting their terminal block contacts to +5 V (current limiting is built into the board).
3.4 Seven-Segment Displays
The myDigital has two standard seven-segment displays with direct access to each LED segment (A through G). Use
DIG0 and DIG1 terminals to select which digit is enabled by connecting that signal to GND (0) (normally pulled-up
or disabled). Connect DISP1 terminals (A through G) high (+5 V) to turn segment ON. Both displays can be used by
rapidly alternating between digits.