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Std EditionBreadboard friendly ESP-12F
Profile：ESP8266 ESP-12 minimal stabilized circuit schematic and PCB
License: Public Domain
Project source： Cloned from Airwave Hijack v1
Description
ESP8266 ESP-12 minimal stabilized circuit schematic and PCB
- Breadboard friendly headers and Wemos D1 mini pin numbers
- 0805 footprints for easy hand soldering
- Designed for battery operation:
Voltage regulator: Torex XC6220B331PR-G (8uA quiescent current, 1000mA max) VIN: max. 6V
To enable self-wake from deep sleep, solder a 0 Ohm resistor over the WAKE pads
You can use a 0 Ohm instead of a 470 Ohm resistor on TX, or solder a bridge.
A cheap P-Channel MOSFET with low RDS(on) is used for reverse polarity protection, because unlike diodes it does not have a significant voltage drop.
MOSFET: AO3401A by Alpha & Omega Semiconductor Inc.
See this video about how the reverse polarity protection works: https://www.youtube.com/watch?v=IrB-FPcv1Dc
Documents
| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 3x6x2.5mm | KEY1 | KEY-3.0*6.0 | 1 |
| 2 | XC6220B331PR-G | U2 | XC6220B331PR-G-HANDSOLDER | 1 |
| 3 | HDR-M-2.54_1x9 | J3,J1 | HDR-M-2.54_1X9 | 2 |
| 4 | AO3401A | Q1 | SOT-23_L2.9-W1.3-P0.95-LS2.4-BR | 1 |
| 5 | ESP-12F(ESP8266MOD) | U1 | WIFIM-SMD_ESP-12F-ESP8266MOD | 1 |
| 6 | 10k | R4,R2,R5,R1,R3 | R0805 | 5 |
| 7 | 470 | R6 | R0805 | 1 |
| 8 | 0 | R7 | R0805 | 1 |
| 9 | 100n | C1 | C0805 | 1 |
| 10 | 10u | C4,C5 | C0805 | 2 |
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