Shared Projects by 8n1

untested (not yet in production)

ESP-07 & ESP-12 Breakout Adapter with on-board voltage regulator - Version 3.0B

Used LDO: SPX3819 (Vin=3.7-16V, Dropout=340mV(-550mV), Iq=90µA)

Eagle files, Pictures, Schematic, Partlist(BOM)

https://github.com/8n1/ESP8266-Breakout-Adapter

untested (not yet in production)

ESP-07 & ESP-12 Breakout Adapter with on-board voltage regulator - Version 3.0A

Used LDO: AS1363 (Vin=3.5-5.5V, Dropout=150mV(-320mV), Iq=40µA)

Eagle files, Pictures, Schematic, Partlist(BOM)

https://github.com/8n1/ESP8266-Breakout-Adapter

Documentation

https://github.com/8n1/ESP8266-Breakout-Adapter/blob/master/Breakout%20Adapter%20v2/README.md

Documentation

https://github.com/8n1/ESP8266-Breakout-Adapter/blob/master/Breakout%20Adapter%20v2/README.md

ESP-07 & ESP-12(E/F) Breakout Adapter with on-board voltage regulator

Pictures

Full album: http://imgur.com/a/fsVE8

Schematic

Features/BOM

• x1117-3.3 voltage regulator (AMS1117, LM1117,…) - IC1 - [SOT-223]
• Input, output(C1, C2 - Tantalum 10µF [1206]) and decoupling capacitor(C3 - Ceramic 100nF [0805])
• Pullup resistors for CH_PD(R1), RESET(R3) and GPIO0(R4) - 10K [0805] *
• Pulldown resistor for GPIO15(R2 - 10K [0805]) *
• Reset button “tactile” (connects Reset to GND) - [THT]
• Flash button “tactile” (connects GPIO0 to GND) - [THT]
• ESP-12E pin header(bottom pins) **
• Breadboard compatible (one row stays free on both sides)

* R1 and R2 could also be a solderbridge or 0 Ohm resistor if the “pulled” pin will not be used
** The additional bottom header on the ESP-12E can not be used without modifying the ESP module: http://www.esp8266.com/viewtopic.php?f=32&t=4094

Note: The idle current consumption of the 1117 voltage regulator is about ~5mA!

More details

https://github.com/8n1/ESP8266-Breakout-Adapter/tree/master/Breakout%20Adapter%20v1.1%20-%20LM1117

License

Creative Commons Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/