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ESP8266 F.A.Q.
When I connect stuff to some of the pins, the Huzzah
stops working. Whats up with that?
The ESP8266 uses some of the pins as 'boot mode' pins so on boot they must be
set to certain values:
CH_PD (EN)should be always pulled high (it will disable the entire module if
low)
RST should be always pulled high (it will disable the entire module if low)
GPIO 0 sets whether the bootloader is active, it must be pulled HIGH during
power up/reset for the user program to run. If it's pulled LOW, it will activate
the bootloader. The built-in red LED on #0 pulls it up
GPIO 2 must be pulled high on power up/reset.
GPIO 15 must be pulled low on power up/reset.
My Huzzah board keeps crashing and resetting, whats up
with that?
The most common reason for crashes is power failure. Make sure you're powering
the Huzzah with a good ~5V power supply, and if you're using a USB-Serial cable,
that it's plugged into the mainboard of your computer or through a powered hub!
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