Arduino ESP8266 (WTF is so difficult to set up) - Saultes45/Bathymetry GitHub Wiki
Portable version 1.6.5
https://www.instructables.com/id/Portable-installation-guide-of-Arduino-IDE-v165-fo/
https://github.com/esp8266/Arduino/issues/4592
This one worked for me, I am on win 7
See the STAGING
http://arduino.esp8266.com/staging/package_esp8266com_index.json
Yet another problem because of windows 7 (but fixed in win10) of the path character limit of 270:
#include <bits/c++config.h>
so, following https://github.com/esp8266/Arduino/issues/1631, you have to move your arduino folder as close as possible to the root. I used a USB3 flash drive (move the **complete ** folder): F:\arduino-1.6.5-r5
but it took **aaaaaages **to cut/paste but it worked for > File->Examples-> ESP8266->blink:
Sketch uses 222,193 bytes (51%) of program storage space. Maximum is 434,160 bytes. Global variables use 31,560 bytes (38%) of dynamic memory, leaving 50,360 bytes for local variables. Maximum is 81,920 bytes.