L01 internal pulldown resistor for safe mode pin?
-
Hey,
Is there any information on the internals of the L01 module? We have a design that has the safe pin connected to a slot for a switch to connect to VCC, but are not sure if the pin is left floating when the switch is not pressed. Is there an internal pulldown resistor to ground to avoid this? Note the pin is P12.
Thanks.
-
@Joe-Mulder If you have a L01 module at hand, you can test with a multimeter, if there is an resistor on the board, while the module is not powered. And open port behaves different from a resistor.
Note: It is a ongoing mess that Pycom does not publish technical details like schematics, given their state of the documentation and response characteristics to questions.
-
@robert-hh Thanks for the response. If you've done any designs with the L01 or G01 modules, did you add an external pull down on the safe boot pin or any others just in case? I feel like we don't want to risk it floating and causing a safe boot sporadically.
-
@Joe-Mulder I did not use any of these modules. However, P12 is only sampled for safe boot on reset, which may however be a reset after deepsleep or similar,
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better 💗
Register Login