Update: ESP8266 Breadboard Adapter Board

I designed a single-sided ESP-12/ ESP-07 breadboard adapter PCB which will be easy to etch and solder for anyone who loves to play with the ESP8266 on a breadboard like me. 

There are different designs of the breadboard adapter:

• ESP-07/ ESP-12 (single sided, github)
• ESP-12F (from Michał Lisak, two layer, github)

There is also a nice 3D-printed socket from Moritz in his github account to easily program (lots) of ESPs without the need to solder them at all.

Features are:

• Fits ESP-12 and ESP-07 module
• Single-sided self-etchable design
• Few, cheap parts in SMD
• Breadboard-style - one row on each side accessible
• Vin >4.8V (max. 12V) input possible with 3V3 onboard voltage regulator (with two capacitors 10µF)
• RST, CH_PD, GPIO0 with 4k7 pull-up resistors on board (resistors can be omitted if remote access of those GPIOs is needed)
• GPIO15 with 4k7 pull-down (see above)
• Tactile switch connected to GPIO0 to get into flash mode
• Reset switch
• Solder bridges for DTR, RTS lines to enable automatic flashing without having to press buttons

Parts needed:

• ESP8266-12/ -07 module
• 1x Voltage Regulator (e.g, AMS1117-3.3V, 800mA)

  

  Kit

• 2x 10µF SMD ceramic capacitors
• 4x 4.7k SMD Ohm resistors
• 2 1k SMD Ohm resistor
• 2x 4*4mm SMD tactile switch
•  2x 1*8 pin header (pitch 2.54mm)
• 12MHz crystal
• 2x 22pF capacitors
• Micro USB connector
• 100nF capacitor
• CH340G USB to serial IC

Remember to put three jumper wires on the bottom side as this is only single sided. See Eagle files for connections.

ESP8266 breadboard adapter board

This is an old design of the breadboard adapter. Please look at this blog post for the recent design.

I designed a single-sided ESP-12/ ESP-07 breadboard adapter PCB which will be easy to etch and solder for anyone who loves to play with the ESP8266 on a breadboard like me.

Eagle files are in my github repo

Features are:

* Fits ESP-12 and ESP-07 module
* Single-sided self-etchable design
* Few, cheap parts in SMD
* Breadboard-style - one row on each side accessible
* Vin >4.5V (max. 7V) input possible with 3V3 onboard voltage regulator (with two capacitors 10µF)
* Power-indicator LED
* (Schottky-) Diode as reverse polarity input protection possible (solder 0 Ohm resistor or just connect the two pads for no protection)
* RST, CH_PD, GPIO0 with 4k7 pull-up resistors on board (resistors can be omitted if remote access of those GPIOs is needed)
* GPIO15 with 4k7 pull-down (see above)
* Tactile switch connected to GPIO0 to get into flash mode
* Single post for 3.3V output near voltage regulator

Parts needed:

• 1x Voltage Regulator (e.g, AMS1117-3.3V, 800mA)
• 2x 10µF SMD ceramic capacitors
• 4x 4.7k SMD Ohm resistors
• 1x 330 SMD Ohm resistor
• 1x SMD-LED (1006)
• 1x 4*4mm SMD tactile switch
•  2x 1*8 pin header (pitch 2.54mm)
• optional: 1x Schottky-diode SMD

This is the actual revision 1.0 - improved for:

* Antenna part now protruding the PCB (no traces below antenna)
* Wider traces
* Schottky diode for reverse polarity protection
* 2x 10µF ceramic caps for input/ output of AMS1117
* Single post for 3.3V Output near voltage regulator