ESP8266/OTA
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Exploring Over The Air (OTA) updates.
There is an OTA option in the Arduino IDE.
UPDATED
This now actually works with Arduino IDE 1.6.5 r5
Freshly updated documentation
Verified this working with DNS_SD_Arduino_OTA Example sketch using ESP-01 & ESP-12e with 1MB memory.
The "Network ports" option seemed to require restarting the IDE after uploading the initial firmware via serial.
It's also important to know the flash memory size, ESP.getFreeSketchSpace() may be useful, free space must be greater than sketch size.
void setup() { Serial.begin(115200); Serial.println("Flash Memory Stuff"); Serial.println("ESP ID: "); Serial.println(ESP.getChipId(), HEX); Serial.println("Flash ID: "); Serial.println(ESP.getFlashChipId(), HEX); Serial.println("Flash Size: "); Serial.printf("Sketch size: %u\n", ESP.getSketchSize()); Serial.printf("Free size: %u\n", ESP.getFreeSketchSpace()); }
Serial output from an ESP-01
ESP ID: DCED75 Flash ID: 1440E0 Sketch size: 304716 Free size: 655360
Note: Updated to HEX formatting of Flash ID.