58. Press Switch-controlled LED & Bi-directional LED Series Connection
Build the circuit, press and hold the press switch (61), you will see the LED (69) and the bi-
directional LED (71) turn on red at the same time. Install the bi-directional LED (71) in the reverse
direction, then press the press switch (61), the LED (69) will turn on red, while the bi-directional
LED (71) will turn on blue.
Red Light
Blue Light
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