Dispensers, dispenser systems and refill units configured for autonomous firmware/software updates

1. A soap or sanitizer dispenser comprising:

a processor;

dispenser memory;

firmware for controlling one or more operations of the dispenser;

a sensor for sensing an object;

a receptacle for receiving a refill unit;

a reader for reading information from a near field communication tag;

a refill unit;

the refill unit having the near field communication tag secured thereto;

memory on the near field communications tag;

firmware update code stored on the memory;

wherein when the refill unit is installed in the receptacle, the reader reads the firmware update code; and

wherein the processor causes the dispenser firmware to be updated by the firmware update code read from the near field communications tag on the refill unit;

wherein the firmware update code comprise code for updating one or more constants.

2. The dispenser of claim 1 wherein the one or more constants is a cut-off voltage.

3. The dispenser of claim 1 wherein the one or more constants alters a sensing parameter of the object sensor.

4. The dispenser of claim 1 wherein the one or more constants is a speed of a system clock.

5. The dispenser of claim 1 wherein the one or more constants is one or more low power mode settings.

6. The dispenser of claim 1 wherein the one or more constants is whether to check for an authentication tag.

7. The dispenser of claim 1 wherein the one or more constants is a sensor setting.

8. The dispenser of claim 1 wherein the one or more constants is a start speed.

9. The dispenser of claim 1 wherein the one or more constants is a length of time to wait for a target to leave a sensing area of the object sensor or number of targets.

10. A soap, sanitizer or lotion refill unit comprising:

a container for holding one of a soap, a sanitizer and lotion;

a near field communication tag associated with the container;

refill unit memory on the near field communication tag; and

update logic stored on the refill unit memory for updating software and/or firmware;

wherein the update logic is configured to perform a software or firmware update on a dispenser;

wherein update logic comprises logic for updating one or more constants.

11. The dispenser of claim 10 wherein the constant is a cut-off voltage.

12. The dispenser of claim 10 wherein the constant is a speed profile configured to limit dripping or tailing of the dispensed output.

13. The dispenser of claim 10 wherein the constant is on/off rate of one or more status indicators or light.

14. The dispenser of claim 10 wherein the constant is one or more low power mode settings.

15. The dispenser of claim 10 wherein the constant is a start speed.

16. A method of updating a soap or sanitizer dispenser comprising:

providing a refill unit;

securing a near field communication tag;

storing update logic on the near field communication tag;

wherein when the refill unit is placed in a dispenser that has a processor, memory, dispenser logic stored in the memory for controlling one or more dispenser functions, the update logic stored on the near field communication tag causes the update logic to update the dispenser logic;

wherein update logic comprises logic for updating one or more constants.

17. The method of updating a soap or sanitizer dispenser of claim 16 further comprising providing a dispenser that has a processor, memory, dispenser logic stored in the memory for controlling one or more dispenser functions.

18. The method of updating a soap or sanitizer dispenser of claim 16 wherein update logic comprises logic for updating one or more constants.