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I have a question. I want to use GPIO_0 (Pin 2) as the WL_HOST_WAKE_L on the 1MW WiFi/BT Module. Since it is an Open-Drain Output, can I connect this pin directly to my 3.3V MCU interrupt input and use a 10K pull-up resistor to 3.3V. It is an Open-Drain so it seems that a pull-up to 3.3V should be acceptable. Do you have any examples of how this pin is connected for 3.3V operation? If the maximum voltage for the pull-up is really limited to 1.8V, then is there a pin on the 1MW Module that can provide this 1.8V?
Regards,
Jack Grenfell
Solved! Go to Solution.
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Hi
May I know where did you get the attached document from? Please share the link.
Yes, you can directly connect the WL_HOST_WAKE pin to the MCU.
Regarding the 1.8V - the CYW43455 min operating voltage is 3.0V and the 1MW module's min VBAT is 3.0V.
The Murata 1MW is a module manufactured by Murata and hence they will be in a better position to answer these module-related queries.
Thanks
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Hi
May I know where did you get the attached document from? Please share the link.
Yes, you can directly connect the WL_HOST_WAKE pin to the MCU.
Regarding the 1.8V - the CYW43455 min operating voltage is 3.0V and the 1MW module's min VBAT is 3.0V.
The Murata 1MW is a module manufactured by Murata and hence they will be in a better position to answer these module-related queries.
Thanks