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In one implementation, a device for dispensing items includes a plurality of compartments for storing medicines or medical supplies, a respective light source associated with each of the plurality of compartments, and a computerized controller coupled to the light sources. The computerized controlle

In one implementation, a device for dispensing items includes a plurality of compartments for storing medicines or medical supplies, a respective light source associated with each of the plurality of compartments, and a computerized controller coupled to the light sources. The computerized controller maintains an inventory of the contents of the plurality of compartments and receives requests to dispense medicines or medical supplies from the plurality of compartments. In response to a request to dispense a particular medicine or medical supply item, the computerized controller illuminates the light source associated with the compartment holding the particular medicine or medical supply item, the light source being illuminated with a brightness controlled by the computerized controller. The brightness of the light source may be controlled in accordance with a detected brightness of the ambient environment. The light source may be a multi-colored light source.

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1. A device for dispensing items, comprising: a plurality of compartments for storing medicines or medical supplies;a respective light source associated with each of the plurality of compartments; anda computerized controller coupled to the light sources and capable of controlling the light sources,

1. A device for dispensing items, comprising: a plurality of compartments for storing medicines or medical supplies;a respective light source associated with each of the plurality of compartments; anda computerized controller coupled to the light sources and capable of controlling the light sources, wherein the computerized controller maintains an inventory of the contents of the plurality of compartments and receives requests to dispense medicines or medical supplies from the plurality of compartments;and wherein in response to a request to dispense a particular medicine or medical supply item, the computerized controller illuminates the light source associated with the compartment holding the particular medicine or medical supply item;and wherein the light sources are multi-colored light sources configured to emit light of a first color at a first time and light of a second color at a second time, and wherein the color of light emitted by the multi-colored light sources is controlled by the computerized controller;and wherein the computerized controller illuminates the multi-colored light source associated with the compartment holding the particular medicine or medical supply item such that the color of light emitted by the illuminated multi-colored light source conveys information about the type of the particular medicine or medical supply item in the associated compartment. 2. The device for dispensing items of claim 1, wherein the light source is illuminated with a brightness controlled by the computerized controller, and wherein the computerized controller selects the brightness of the light source in response to an input from a user of the device. 3. The device for dispensing items of claim 1, wherein the light source is illuminated with a brightness controlled by the computerized controller, the device further comprising a sensor that detects the brightness of the ambient environment, wherein the computerized controller automatically selects the brightness of the light source in response to the detected brightness of the ambient environment. 4. The device for dispensing items of claim 1, wherein the computerized controller causes at least one of the plurality of light sources to flash in order to communicate information to a user of the device. 5. The device for dispensing items of claim 1, wherein the computerized controller causes at least one of the plurality of light sources to be illuminated using a particular color and a particular flash pattern in order to communicate information to a user of the device. 6. A device for dispensing items, comprising: a plurality of compartments for storing items;a respective multi-colored light source associated with each of the plurality of compartments; anda computerized controller coupled to the multi-colored light sources, the computerized controller controlling one or more of the multi-colored light sources to emit light of a first color at a first time and light of a second color at a second time;wherein the compartments store medicines or medical supplies;and wherein the computerized controller maintains an inventory of the contents of the plurality of compartments and receives requests to dispense medicines or medical supplies from the plurality of compartments;and wherein in response to a request to dispense a particular medicine or medical supply item, the computerized controller illuminates the multi-colored light source associated with the compartment holding the particular medicine or medical supply item such that the color of light emitted by the illuminated multi-colored light source conveys information about the type of the particular medicine or medical supply item in the associated compartment. 7. The device for dispensing items of claim 6, wherein the plurality of multi-colored light sources comprises one or more multi-colored light emitting diodes. 8. The device for dispensing items of claim 6, wherein one of the plurality of multi-colored light sources comprises: a first light emitting diode that emits light of the first color; anda second light emitting diode that emits light of the second color, the first and second light emitting diodes being in separate packages. 9. The device for dispensing items of claim 6, wherein the color of light emitted by the illuminated multi-colored light source is selected based at least in part on the controlled substance schedule of a particular medicine in the associated compartment. 10. The device for dispensing items of claim 6, wherein the computerized controller causes one or more of the multi-colored light sources to flash in a particular pattern to communicate information to a user of the device. 11. The device for dispensing items of claim 10, wherein the particular pattern identifies a fault condition of the device. 12. The device for dispensing items of claim 10, wherein the combination of the color of light emitted by the flashing multi-colored light source and the particular pattern identifies a fault condition of the device. 13. The device for dispensing items of claim 6, wherein the computerized controller is configured to detect a state of each of the plurality of compartments, and wherein the computerized controller controls one or more of the multi-colored light sources to indicate the state of one or more of the compartments. 14. The device for dispensing items of claim 13, wherein the computerized controller controls one or more of the plurality of multi-colored light sources to indicate that one of the plurality of compartments is overfilled. 15. The device for dispensing items of claim 13, wherein the computerized controller controls one or more of the plurality of multi-colored light sources to indicate that one of the plurality of compartments has been the subject of a break-in attempt. 16. The device for dispensing items of claim 13, wherein the computerized controller controls one or more of the plurality of multi-colored light sources to indicate that one of the plurality of associated compartments has been opened in error. 17. The device for dispensing items of claim 6, wherein the brightness of the multi-colored light sources is adjustable under control of the computerized controller. 18. The device for dispensing items of claim 17, wherein the computerized controller adjusts the brightness of the multi-colored light sources in response to an input from a user of the device. 19. The device for dispensing items of claim 17, further comprising a sensor that detects the brightness of the ambient environment, and wherein the computerized controller automatically adjusts the brightness of the multi-colored light sources in response to the detected brightness of the ambient environment. 20. The device for dispensing items of claim 6, wherein: the computerized controller maintains an inventory of the contents of the plurality of compartments and receives requests to dispense items from the plurality of compartments; andin response to a request to dispense a particular item, the computerized controller causes the multi-colored light source associated with the compartment holding the particular item to emit light of a first color, and causes the multi-colored light sources associated with other compartments to emit light of a second color different from the first color. 21. The device for dispensing items of claim 6, wherein: the computerized controller maintains an inventory of the contents of the plurality of compartments and receives requests to dispense items from the plurality of compartments; andin response to a request to dispense a particular item, the computerized controller causes the multi-colored light source associated with the compartment holding the particular item to emit light of a color selected based upon whether a user of the device is authorized to access the particular item. 22. The device for dispensing items of claim 1, wherein the color of light emitted by the illuminated multi-colored light source is selected based at least in part on the controlled substance schedule of a particular medicine in the associated compartment. 23. A device for dispensing items, comprising: a plurality of compartments for storing items;a respective multi-colored light source associated with each of the plurality of compartments; anda computerized controller coupled to the multi-colored light sources, the computerized controller controlling one or more of the multi-colored light sources to emit light of a first color at a first time and light of a second color at a second time;wherein the computerized controller is configured to detect a state of each of the plurality of compartments, and wherein the computerized controller controls one or more of the multi-colored light sources to indicate one or more states selected from the set of states consisting of one of the plurality of compartments is overfilled and one of the plurality of compartments has been the subject of a break-in attempt.