Espressif ESP8266 Series - Page 15

ESP8266EX
1.
UART DOWNLOAD MODE: short this jumper
2.
SDIO BOOT MODE: disconnect this jumper
1.
Quad (recommend) /Dual SPI flash
2.
8Mbit (recommend)
3.
sop-150mill
Figure 1-13: Schematic of ESP8266EX as A Slave Device
Espressif
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2016.06