DIY Memo: ESP8266 v1 hookup

Tonight marks the third time I forgot how to hook up this wifi module already, I might as well leave a memo here for my forgetful future self.

This is the hookup instruction for ESP8266 v1 using CP2012 and Tera Term software

fn30hcfi3thpc9w-large

Things to know:

  • 3.3 VDC source
  • RX and TX can accept 5V logic level without problems (so far).
  • 5V output of an Arduino Uno (externally sourced) through AMS1117 provides enough current for ESP8266 boot up.
  • Default: 115200 baud rate
  • Tera Term > Setup > Terminal > New-line transmission mode: CR+RF
  • Flash mode: GPIO 0 + RESET -> GND then RESET -> float and finally GPIO 0 -> float
ESP8266 CP2012 / Source
VCC VCC
GND GND (common to CP2012)
RX TXD
TX RXD
GPIO 0 VCC
CH_PD
RESET
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Published by

fujihita

Self-learner, designer, author and programmer.

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