Holger Eiboeck
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Holger Eiboeck
On ESP8266 interrupt routines you need to prefix with ICACHE_RAM_ATTR to avoid crashes. See my pull request https://github.com/PaulStoffregen/Encoder/pull/15 or pull from my fork at https://github.com/realholgi/Encoder
@vks007 obviously you defined ENCODER_USE_INTERRUPTS , which I have not used and fixed. Try to undef it or prefix the corresponding line 774 with ICACHE_RAM_ATTR...