Supported GPIO on Modules - sblantipodi/firefly_luciferin GitHub Wiki

Luciferin GPIOs can be configured as per your preference:

TinyPICO on Luciferin Module (ESP32)

• LED GPIO32
• Relay GPIO22
• Button GPIO0
• LDR GPIO33

TinyS2 on Luciferin Module (ESP32-S2)

• LED GPIO38
• Relay GPIO9
• Button GPIO0
• LDR GPIO3

TinyS3 on Luciferin Module (ESP32-S3)

• LED GPIO7
• Relay GPIO9
• Button GPIO0
• LDR GPIO6

Here you can learn how to change the GPIO in use.