WisBlock RAK12001 Example sketch not working

meberli · September 19, 2022, 10:40pm

Following the quickstart Guide from https://docs.rakwireless.com/Product-Categories/WisBlock/RAK12001/Quickstart/
I get the following error on compile:

....\Documents\Arduino\libraries\R30X-Fingerprint-Sensor-Library\src\R30X_FPS.cpp: In member function 'uint8_t R30X_FPS::reinitializePort(uint32_t)':
....\Documents\Arduino\libraries\R30X-Fingerprint-Sensor-Library\src\R30X_FPS.cpp:911:1: error: no return statement in function returning non-void [-Werror=return-type]```

carlrowan · September 20, 2022, 1:53am

Welcome back to forum @meberli ,

Can you please share what WisBlock Core are you using? Also, did you modify the example code from the quickstart guide?

beegee · September 20, 2022, 2:24am

It is a bug in the R30X-Fingrprint-Sensor-Library.
The function reinitializePort()** is declared to return an **uint8_t` value, but it doesn’t. The compiler check flags are set to throw an error in this case.

The library is not provided by RAKwireless, it should be reported in the library repo