ESP8266 Open SDK without WiFi (startup < 30 ms to complete the flash cache)
Timers, Sleep, Deep Sleep, ... 'Heap' > 80 Kbytes. IRAM > 31 Kbytes.
Supported options 48 kbytes IRAM.
ESP8266 Open SDK without WiFi (startup < 30 ms to complete the flash cache)
CNOASSERTION