Here is a patch of memory optimization based on SDK_v1.2.0
1. It saved about 8KBytes memory.
2. It revised problem that change mode may cause memory leak.
3. Update SmartConfig to version 2.4.3
Please replace the lib in \esp_iot_sdk_v1.2.0\lib
Thanks for your interest in Espressif Systems and ESP8266 !
this introduces optimistic_yield() used for when standard library
methods are normally used in tight loops waiting for something to
happen, like available().
esp_iot_sdk_v1.2.0_15_07_09_p3 Release Note
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Here is a patch based on SDK_v1.2.0 solved problem that if AP’s SSID is hidden，ESPTOUCH may get wrong BSSID of AP and cause connection fail.
Please replace the lib in \esp_iot_sdk_v1.2.0\lib
Sorry for the inconvenience.
esp_iot_sdk_v1.2.0_15_07_09_p2 Release Note
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Updated libssl again. To support SHA-256 and SHA-512.
Thanks for your interest in Espressif Systems and ESP8266 !
esp_iot_sdk_v1.2.0_15_07_08_p1 Release Note
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Here is a patch based on SDK_v1.2.0 solved problem that abnormal SSL disconnection may cause reset.
Please replace the lib in \esp_iot_sdk_v1.2.0\lib
Sorry for the inconvenience.
On Linux (presumably Mac too), the header of the library
could not be included, caps changed to match the filename.
The line 'architectures=ESP8266' in library.properties caused:
WARNING: library ESP8266httpUpdate claims to run on [ESP8266] architecture(s) and may be incompatible with your current board which runs on [esp8266] architecture(s).
I rewrote digitalWrite because the existing version was breaking
functionality as compared to how it behaves on the AVR,. specifically, I
could not use digitalWrite for a library that works fine on the AVR.
Instead I had to resort to fiddling with GPOC and GPOS and bit masks,
but this rewrite made all of that unnecessary, for whatever reason, it
just works better.
This version borrows a little from the AVR library in the sense that the
same logic is applied to determine whether a pin should be high or low
as the AVR version, and yes, it does appear to make a difference.
