Below is the circuit where I want to integrate the buzzer with the red LED.
The task is to add the buzzer, where the red LED is, in such a way that when the red LED (which is driven by the LED driver) turns ON, the buzzer should turn ON. When the red LED turns OFF the buzzer should turn OFF.
In the circuit you have 5V supply voltage. The red LED has voltage drop of 1.95V; the output pin (IO0) of the LED driver has a low level output voltage of 0.7V; the resistor is calculated to have a voltage drop of 2.35V. Additionally, the buzzer has an operating voltage of 1.5V. Adding the buzzer in series with the LED won't work, as there wouldn't be enough voltage for the buzzer to turn ON.
Could anyone suggest a method for adding the buzzer to the circuit?
Please refer to the below datasheets of the main components.
Links to components:
Buzzer Datasheet https://docs.rs-online.com/296f/0900766b8135f7a7.pdf
LED Datasheet https://www.kingbright.com/attachments/file/psearch/000/00/00/KPTR-3216SURCK(Ver.23A).pdf
Resistor datasheet https://www.yageo.com/upload/media/product/productsearch/datasheet/rchip/PYu-RC_Group_51_RoHS_L_12.pdf
LED Driver datasheet https://www.nxp.com/docs/en/data-sheet/PCA9536.pdf
