WLimin

fix: Homie framework fails with exception when compiled with sloeber

3

Tested by NodeMCU, Esp8266 V2.7.4, Sensor & Event demo. Signed-off-by: wang

Add the delay when doing set_gain or power_up

1

Add the delay when doing set_gain or power_up. fix variable type declare. Add new demo, base on HX711SerialBegin. Signed-off-by: wang

There is some memory leak risks in pack_fat.cpp, such as line 150, 229, etc. It should add "fclose(f_src)" segment. And in same file, at line 276, "if (ent->d_name[0] == '.')"...