Potential Conflicts Identified by Pin Mapper Tool

[limnoted (Ted)]

This is my first day experimenting with RAK hardware and microcontrollers in general, so apologies if these are obvious question.
I’m using the latest version of the pin mapper tool and am finding several potential conflicts, and several parts that aren’t in the tool. Here are the components I’d like to use together:

Part	Function	WisIO?	in pin mapper tool?
RAK19001	WisBase
RAK4631	WisCore
RAK13010	sdi-12	y
RAK15006	FRAM		n
RAK5860	SIM	y
RAK12002	RTC
RAK1921	OLED		n
And the pinmapper results with RAK15006 and RAK1921 missing.
.
Questions:

1. Are the potential conflicts actual conflicts?
2. Is there a better configuration for the modules?
3. How do I handle the modules that are missing from the pinmapper tool? I looked at their datasheets but wasn’t sure how to use the information.
   Apologies again for the very beginner-level questions!

[beegee (Bernd Giesecke)]

Where did you download the pin mapper tool from.
I have both RAK15006 and RAK15007 in the tool.

RAK1921 is only using I2C and it is not an IO or Sensor Slot module, so there is no use in having it in the tool.

RAK5960 and RAK13010 are already using up most of the available IO’s , so there is not much chance to use them together with the other modules.

[limnoted (Ted)]

@beegee

RAK15006

Thanks for the response!
I downloaded the pin mapper tool yesterday from: https://learn.rakwireless.com/hc/en-us/articles/26743306645143-How-To-Use-the-WisBlock-IO-Pin-Mapping-Tool.

When you say “RAK1921 is only using I2C and it is not an IO or Sensor Slot module, so there is no use in having it in the tool.”, I’m confused by the rak1921 quick start guide saying “If you will connect other modules to the remaining WisBlock Base slots, refer to the WisBlock Pin Mapper” (https://docs.rakwireless.com/Product-Categories/WisBlock/RAK1921/Quickstart). If I understand correctly, some IO can be reassigned in software to minimize conflicts, and some can be used for multiple purposes simultaneously. Can you recommend any documentation here? Apologies for the confusion!

[beegee (Bernd Giesecke)]

The RAK1921 does not use any GPIO’s, only I2C, 3.3V and GND.
There is no conflict with other WisBlock modules.

Reassigning GPIO’s in the software means choosing the correct GPIO depending on the module slot the module is used in. Each sensor slot is using a different set of GPIO’s.