Need help with BLE and ESP32

[DurkV]

Hi All,
I try to make an app to send slider and a switch info, through BLE to an ESP32 C3 (with Arduino IDE).
Somehow I managed to send the slider info, but when I use the switch te app crashes.
I could use some help!

This is my project: Loc1_ESP_BLE_slider_3.aia (193.8 KB)

[uskiara]

Hello @DurkV,
honestly I'm not that clever on BLE, nevertheless in your .aia I've seen that you transmit to the ESP32 the status of the switch by using the SendString block.
I would have rather used the SendText, instead.
The link here below, leads you to the example of such use that I've posted a couple of weeks ago.
Probably it can help you.
Cheers.

BLE and ESP32 just a new test example (send and receive in UART Service)

Dear all, though the great help of @juan_antonio's examples, in the past days I've been fighting against BLE and ESP32 and I've felt in multiple troubles before having it working (honestly I'm a big supporter of the older and simpler classic BT. but anyway....). At the end I succeded to make it functioning and, since the spirit of the community is to share knowledge, I'm pleased to post my work. You'll find annexed the .aia, the .ino and a ,pdf that shows step-by-step what I've done, the HW …