When I use vsCode+PlatformIO to compile the "helloWorld" oled example for 'wifi_kit_8' board, I met the error that saying the 'OLED_RST' undefined for compiling heltec.cpp. By adding line '#define OLED_RST 16', this error got fixed and compiling got succeeded. By the way, if the developer wants the #ifdefined(WIFI_Kit_8) work, one should add build_flags = -D KIFI_Kit_8 in the platformio.ino file.
When I use vsCode+PlatformIO to compile the "helloWorld" oled example for 'wifi_kit_8' board, I met the error that saying the 'OLED_RST' undefined for compiling
heltec.cpp. By adding line '#define OLED_RST 16', this error got fixed and compiling got succeeded. By the way, if the developer wants the#ifdefined(WIFI_Kit_8)work, one should addbuild_flags = -D KIFI_Kit_8in theplatformio.inofile.