Methods of color selection in multiple color LED lamps
A method of selecting a color in a multiple color LED lamp with only two external wires leading to the LED lamp. The LED lamp receives power and control signals through a power lead of the lamp. By detecting a power pulse sequence on the power lead in a first pattern, a microcontroller within the lamp controls the lamp to illuminate a first color. By detecting a power pulse sequence on the power lead in a second pattern, the microcontroller controls the lamp to illuminate a second color. The pattern detected indicates the desired color for the lamp to the microcontroller. Other patterns indicate other control instructions for the lamp.
1. A method of selecting a color in a multiple color LED lamp, the method comprising:
receiving power through a single power lead of a multiple color LED lamp;
detecting, through a microcontroller in the LED lamp, a first power pulse sequence on the single power lead in a first predetermined pattern, the first predetermined pattern corresponding to a first desired color;
illuminating the LED lamp a first desired color in response to detecting the first predetermined pattern on the single power lead;
detecting, through the microcontroller in the LED lamp, a second power pulse sequence on the single power lead in a second predetermined pattern, the second predetermined pattern corresponding to a second desired color; and
illuminating the LED lamp a second desired color in response to detecting the second predetermined pattern on the single power lead.
2. A method of selecting a color in a multiple color LED lamp, the method comprising:
receiving power through a single power lead of a multiple color LED lamp;
detecting, through a microcontroller in the LED lamp, a first power pulse sequence on the power lead in a first predetermined pattern, the first predetermined pattern corresponding to a first desired color;
illuminating the LED lamp a first desired color in response to detecting the first predetermined pattern on the power lead;
detecting, through the microcontroller in the LED lamp, a second power pulse sequence on the power lead in a second predetermined pattern, the second predetermined pattern corresponding to a second desired color; and
illuminating the LED lamp a second desired color in response to detecting the second predetermined pattern on the power lead.
3. The method of claim 2 , wherein receiving power comprises receiving power for a predetermined amount of time.
4. The method of claim 3 , further comprising storing at the LED lamp a portion of the power received and using the power to detect the first power pulse sequence.
5. The method of claim 1 , wherein the first predetermined pattern and the second predetermined pattern are each part of a plurality of predetermined patterns each corresponding to a different color of a plurality of colors the multiple color LED lamp is able to display.
6. The method of claim 1 , further comprising providing the multiple color LED lamp with only two external wires coupled to the LED lamp.
7. A method of selecting a color in a multiple color LED lamp, the method comprising:
powering a multiple color LED lamp through a power lead;
transmitting a first power pulse sequence on the power lead in a first predetermined pattern, the first predetermined pattern corresponding to a first desired color;
causing, through a microcontroller in the LED lamp, the LED lamp to illuminate a first desired color in response to the first predetermined pattern on the power lead;
transmitting a second power pulse sequence on the power lead in a second predetermined pattern, the second predetermined pattern corresponding to a second desired color; and
causing, through the microcontroller in the LED lamp, the LED lamp to illuminate a second desired color in response to the second predetermined pattern on the power lead.