Answer:
The VP3300 BT device has a power management feature to help manage the battery use between charges.
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- Run - In this state, the device is interacting with a card for payment.
- Idle - Device The device returns to this state after a transaction , or following a command from the host application, or on power up.
- Sleep - Device The device goes into this mode from Idle after the "Idle Timer" has elapsed, without further interaction. This uses less power than Idle.
- Off - Following a period of time undisturbed in the Sleep mode (as determined by the "Sleep Timer"), the device will power off to conserve power further.
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The timers have a range of 0 to 255, which is the range possible with a single byte (8 bits) of data.
Please note:
- Setting the Idle Timer to 0 disables the Power Management. This means no idle mode, no sleeping. This offers the most responsiveness when needed, but drains the battery faster.
- Setting Sleep Timer to 0 means the device will not enter Sleep Mode, but will move straight from Idle to Off when the Idle timer elapses.
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There is another control byte which that determines whether the time base used is seconds or minutes.
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Bit 2 controls the Sleep Time Base in the same way (zero = seconds, one = minutes).
| Bit 8 | Bit 7 | Bit 6 | Bit 5 | Bit 4 | Bit 3 | Bit 2 | Bit 1 | Meaning |
|---|---|---|---|---|---|---|---|---|
| X | X | X | X | X | X | RFU | ||
| X | Sleep Time Base (0 = Seconds, 1 = Minutes) | |||||||
| X | Idle Time Base (0 = Seconds, 1 = Minutes) |
For example, to set an Idle Time of 20 seconds and a Sleep Time of 30 minutes, use the following values:
Note: This assumes the use of the SDK Demo App , and the Send NEO Command parameters
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