--- a/main/config.c Tue Oct 08 15:47:34 2019 +0200 +++ b/main/config.c Tue Oct 08 16:51:30 2019 +0200 @@ -79,7 +79,7 @@ void read_units() { uint8_t *dst; uint8_t mac_addr[8] = {0}; - FILE *f = fopen("/spiffs/etc/units.conft", "r"); + FILE *f = fopen("/spiffs/etc/units.conf", "r"); if (f == NULL) { // No units yet, create them.