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Update time：
2024-10-24 09:50:27
Creation time：
2021-08-20 13:17:04
Description
Description
An ESP32 based sensor for the detection of CO2 concetration and particulate matter concentration in environments. Designed for wireless data collection over wifi networks and possibly in a mesh configuration if required. The device has a backup battery/UPS functionality.
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Design Drawing
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| ID | Designator | Footprint | Quantity | Manufacturer Part | Supplier | |
|---|---|---|---|---|---|---|
| 1 | C1 | CAP-SMD_L3.2-W1.6 | 1 | TLJA107M010R1400 | LCSC | C313517 |
| 2 | C2 | C0805 | 1 | CL21B105KPFNNNE | LCSC | C107367 |
| 3 | C3,C10,C11,C16 | C0402 | 4 | 0402B102K500NT | LCSC | C1523 |
| 4 | C4,C5,C8,C9,C12 | C1206 | 5 | CL31B106KAHNNNE | LCSC | C14860 |
| 5 | C6,C7,C13 | C0402 | 3 | GRM155R71H104KE14D | LCSC | C77020 |
| 6 | C14,C15 | C1206 | 2 | CL31A226KPHNNNE | LCSC | C5672 |
| 7 | D2,D3 | SOD-323_L1.8-W1.3-LS2.5-BI | 2 | ESD5V0B03-323 | LCSC | C521915 |
| 8 | D4,D5 | SMBF_L4.3-W3.6-LS5.3-RD | 2 | SS34BF | LCSC | C108836 |
| 9 | H1,H2 | HDR-TH_4P-P2.54-V-M | 2 | 210S-1*4P L=11.6MMGold-plated black | LCSC | C124378 |
| 10 | J1,J2 | HDR-TH_20P-P2.54-V-M-1 | 2 | 2.54mm 1*20PHeader | LCSC | C50981 |
| 11 | L1 | IND-SMD_L7.0-W6.8 | 1 | SMRH74-220MT | LCSC | C27442 |
| 12 | LED1,LED3,LED5 | LED0402-R-RD_RED | 3 | 16-213/SURC/S530-A3/TR8 | LCSC | C136765 |
| 13 | LED2,LED4 | LED0402-RD_GREEN | 2 | LTST-C281KGKT | LCSC | C160479 |
| 14 | P1 | HDR-TH_4P-P2.54-V-M-R2-C2-S2.54-1 | 1 | Double Rows2.54mm2*2pHeaders Pins | LCSC | C66690 |
| 15 | Q1,Q2 | SOT-23-3_L3.0-W1.7-P0.95-LS2.9-BR | 2 | S8050M-D | LCSC | C305482 |
| 16 | Q3 | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | 1 | FS8205 | LCSC | C32254 |
| 17 | R1,R2,R3,R9,R10,R22,R26 | R0402 | 7 | AC0402JR-0712KL | LCSC | C227297 |
| 18 | R4,R13,R14,R23 | R0402 | 4 | 0402WGF4700TCE | LCSC | C25117 |
| 19 | R5,R6,R7,R8 | R0402 | 4 | RMC10JPTH | LCSC | C323696 |
| 20 | R12,R15,R16,R17,R19,R24,R25 | R0402 | 7 | RMS04FT2001 | LCSC | C208819 |
| 21 | R18 | R0603 | 1 | RMC06031001%N | LCSC | C269700 |
| 22 | R20 | R0603 | 1 | 0603WAF7501T5E | LCSC | C23234 |
| 23 | R21 | R0603 | 1 | TR0603B1KP0525 | LCSC | C188364 |
| 24 | SW1,SW2,SW3 | SW-SMD_L4.0-W2.9-LS4.8-1 | 3 | TS-1088-AR02516 | LCSC | C720478 |
| 25 | SW4 | SW-SMD_2BS1T2A1MTQES | 1 | 2BS1T2A1MTQES | LCSC | C496179 |
| 26 | U1 | WIFIM-SMD_38P-L25.5-W18.0-P1.27 | 1 | ESP32-WROOM-32DC | LCSC | C473013 |
| 27 | U2 | QFN-28_L5.0-W5.0-P0.50-BL-EP | 1 | CP2102-GMR | LCSC | C6568 |
| 28 | U3 | SOT-223_L6.5-W3.5-P2.30-LS7.0-BR | 1 | NCP1117LPST33T3G | LCSC | C146799 |
| 29 | U4 | ESOP-8_L4.9-W3.9-P1.27-LS6.0-BL-EP | 1 | TP4056 | LCSC | C16581 |
| 30 | U5 | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | 1 | FS312F-G | LCSC | C82736 |
| 31 | U6 | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | 1 | MT3608 | LCSC | C84817 |
| 32 | U7 | 18650 BATTERY HOLDER | 1 | Keystone | Digi-Key | undefined |
| 33 | USB1 | MICRO-USB-SMD_5P-P0.65-H-M_MICRO-5P | 1 | Micro USB-B 5P-Female-SMT | LCSC | C40940 |
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