Hi Dialog,
I have a few queries regarding the Proximity Tag reference design:
1) In revision C.1 of Smart Tag-2, the FET controlling the power to flash is removed. What is the reason for that? Doesn't this impact battery life as the flash will be always on leading to a quiescent current consumption.
2) In design, the buzzer used is AB1541. I couldn't find its datasheet. So how much loud can it get using this buzzer?
Thanks & Regards,
sr9213
Device:
Hi sr9213,
Thanks MT_dialog
Hi Dialog,
1) Thanks for the reply, appreciate it.
2) The reason why I asked about the sound level because I tested the same buzzer(AB1541) with my 585 based custom board and the buzzer sound is very faint. It is hardly audible.
Is there any special configuration required to get decent audible sound. If not do you have any other buzzer in mind which consume less power but are audible?
Regards,
sr9213
Hi sr9213,
Well, this buzzer is used on the Smart Tag reference design, i dont think that it requires any special configuration, you can check the code and see the configurations for the buzzer and how its driven by the software, in the Smart Tag the buzzer in driven by the inverted PWM's that timer0 generates, please check the configuration in the reference design. Regarding the additional buzzer, as far as i am aware only the Smart Tag uses a buzzer component, so this is what we have used.
Thanks MT_dialog