Espressif ESP8266 Manual

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Appendix Ⅱ
3.
Click the “START” button on the ESP8266 Flash Download Tool to enter the “SYNC”
state. Wait for the ESP-Launcher to power up.
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Figure Ⅱ-2. “SYNC” State of Flash Download Tool
4.
Power up the ESP-Launcher, and start downloading firmware.
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Toggle the switch “2” to the lower side to set ESP-Launcher to download mode. And
toggle the switch “1” to the upper side to power up the ESP-Launcher. More details
about the ESP-Launcher are in Section 3.4.
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Figure Ⅱ-3. ESP-Launcher
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The Flash Download Tool will start to download firmware into the ESP-Launcher. The
DETECTED INFO area on the ESP8266 Flash Download Tool will display information
about the flash chip on the ESP-Launcher.
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Figure Ⅱ-4. Starting Downloading Firmware
Espressif
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2016.09

Espressif ESP8266 Specifications

General

Digital I/O Pins	17
Analog Input Pins	1
Wi-Fi	802.11 b/g/n
Operating Voltage	3.0V - 3.6V
Clock Speed	80 MHz / 160 MHz
Operating Temperature	-40°C to 125°C
Dimensions	24mm x 14mm
Processor	Tensilica L106 32-bit micro controller