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Std edition ESP8266 (ESP12) low power board
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License: CERN Open Hardware License
Description
Board is design to be used on battery - should work with lipo battery - the used LDO - MPC1700 has low dropout voltage and quiscent current.
Supports:
- battery voltage measurement
- wake-up from deep sleep
- onboard led (or not)
- easy accesible I2C pins
- manual or automatic code upload
Design Drawing
schematic diagram
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PCB
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VM's ESP8266 Low Power Thing PCB final
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VM's ESP8266 Low Power Thing PCB final panelize
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| ID | Name | Designator | Footprint | Quantity | BOM_Manufacturer Part |
|---|---|---|---|---|---|
| 1 | B3U-1000P | SW1,SW2 | KEY-SMD_B3U-1000PM | 2 | B3U-1000P |
| 2 | 10K | R2,R4,R5,R6,R7 | R0805 | 5 | ERA6AED103V |
| 3 | 442K | R16 | R0805 | 1 | ARG05FTC4423 |
| 4 | 2.54_1x9 | H4,H5 | HDR-TH_9P-P2.54-V | 2 | 2.54mm 1*9 Straight Female header |
| 5 | 1uF | C1,C2 | C0805 | 2 | 0805B105K250 |
| 6 | 2.54_1x4 | H2,H3 | DIP-1X4P-2.54MM-M | 2 | 210S-1*4P L=11.6MMGold-plated black |
| 7 | UMH3N | Q3 | SC-70-6_L2.2-W1.3-P0.65-LS2.1-BL | 1 | UMH3N |
| 8 | 2.54_1x6 | H1 | HDR-TH_6P-P2.54-V | 1 | Header-Male-2.54_1x6 |
| 9 | ESP-12F | U1 | WIFIM-SMD_22P-L24.0-W16.0-P2.00 | 1 | WT8266-S5 ESP-12F |
| 10 | 470 | R19,R1,R9 | R0805 | 3 | AR05FTC4700 |
| 11 | 100nF | C5,C6,C7,C8 | C0805 | 4 | MT21B104K500CT |
| 12 | D-R080508L3-KS2 | LED1 | LED0805-RD | 1 | D-R080508L3-KS2 |
| 13 | SOLDER_BRIDGE | SB1,SB4 | SOLDER_BRIDGE | 2 | New SchematicLib |
| 14 | 4.7K | R13,R14 | R0805 | 2 | PTFR0805B4K70N9 |
| 15 | MCP1700T-3002E/MB | U2 | SOT-89_L4.5-W2.5-P1.50-LS4.2-BR | 1 | MCP1700T-3002E/MB |
| 16 | 1K | R3 | R0805 | 1 | ARG05BTC1001 |
| 17 | 267K | R17 | R0805 | 1 | ARG05FTC2673N |
| 18 | 10uF | C3 | C0805 | 1 | 0805B106K100 |
| 19 | 200K | R18 | R0805 | 1 | AR05DTDW2003 |
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