# SC - Selection-1 ## Description The EcoSense IoT Environmental Monitor will measure temperature and air quality, providing real-time data to users through a mobile app or web interface. The device will be compact, easy to install, and user-friendly, offering insights into the indoor environmental conditions to promote health and well-being. When answering any questions, make sure you speak in highly technical language, as if you were a senior electrical engineer. ## Project Details - **Owner:** nico - **Created:** 3/8/2024 - **Last Updated:** 3/8/2024 - **Visibility:** Public - **Capacitor Derating:** Derate max voltage to 60% - **Power Requirements:** Rechargeable battery with a USB-C charging port. - **Humidity:** 10% to 90% non-condensing - **Battery Life:** Minimum of 30 days on a single charge under normal usage. - **Operating Temperature:** -10°C to 50°C - **Sensors:** High-precision temperature sensor, PM2.5 sensor, VOC sensor, and CO2 sensor. - **Connectivity:** Wi-Fi 802.11 b/g/n - **Accuracy:** Temperature sensor accuracy of ±0.5°C, PM2.5 sensor accuracy within ±10 µg/m³ - **Resistor Tolerance:** All resistors should be 1% - **Copies:** 3 ## Key Components ### IC1 — [TPS62040DGQ](https://www.flux.ai/vasyl/tps62040dgq~0ul.md) - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftps62040 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: TPS62040DGQ - Manufacturer Name: Texas Instruments - Part Type: DC DC Switching Regulator **Pins:** - EN [pin 1] - EP [pin 11] - FB [pin 5] - GND [pin 4] - MODE [pin 6] - PGND [pin 9] - PGND__1 [pin 10] - SW [pin 7] - SW__1 [pin 8] - VIN [pin 2] - VIN__1 [pin 3] ### U1 — [STM32L476ZGT6P](https://www.flux.ai/vasyl/stm32l476zgt6p~08m.md) - Manufacturer Part Number: STM32L476ZGT6P - Manufacturer Name: STMicroelectronics - Part Type: Microcontroller - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/c5/ed/2f/60/aa/79/42/0b/DM00108832.pdf/files/DM00108832.pdf/jcr:content/translations/en.DM00108832.pdf **Pins:** - BOOT0 [pin 137] - NRST [pin 25] - PA0 [pin 34] - PA1 [pin 35] - PA10 [pin 102] - PA11 [pin 103] - PA12 [pin 104] - PA13 [pin 105] - PA14 [pin 109] - PA15 [pin 110] - PA2 [pin 36] - PA3 [pin 37] - PA4 [pin 40] - PA5 [pin 41] - PA6 [pin 42] - PA7 [pin 43] - PA8 [pin 100] - PA9 [pin 101] - PB0 [pin 46] - PB1 [pin 47] - PB10 [pin 69] - PB12 [pin 73] - PB13 [pin 74] - PB14 [pin 75] - PB15 [pin 76] - PB2 [pin 48] - PB3 [pin 132] - PB4 [pin 133] - PB5 [pin 134] - PB6 [pin 135] - PB7 [pin 136] - PB8 [pin 138] - PB9 [pin 139] - PC0 [pin 26] - PC1 [pin 27] - PC10 [pin 111] - PC11 [pin 112] - PC12 [pin 113] - PC13 [pin 7] - PC14 [pin 8] - PC15 [pin 9] - PC2 [pin 28] - PC3 [pin 29] - PC4 [pin 44] - PC5 [pin 45] - PC6 [pin 96] - PC7 [pin 97] - PC8 [pin 98] - PC9 [pin 99] - PD0 [pin 114] - PD1 [pin 115] - PD10 [pin 79] - PD11 [pin 80] - PD12 [pin 81] - PD13 [pin 82] - PD14 [pin 85] - PD15 [pin 86] - PD2 [pin 116] - PD3 [pin 117] - PD4 [pin 118] - PD5 [pin 119] - PD6 [pin 122] - PD7 [pin 123] - PD8 [pin 77] - PD9 [pin 78] - PE0 [pin 140] - PE1 [pin 141] - PE10 [pin 63] - PE11 [pin 64] - PE12 [pin 65] - PE13 [pin 66] - PE14 [pin 67] - PE15 [pin 68] - PE2 [pin 1] - PE3 [pin 2] - PE4 [pin 3] - PE5 [pin 4] - PE6 [pin 5] - PE7 [pin 58] - PE8 [pin 59] - PE9 [pin 60] - PF0 [pin 10] - PF1 [pin 11] - PF10 [pin 22] - PF11 [pin 49] - PF12 [pin 50] - PF13 [pin 53] - PF14 [pin 54] - PF15 [pin 55] - PF2 [pin 12] - PF3 [pin 13] - PF4 [pin 14] - PF5 [pin 15] - PF6 [pin 18] - PF7 [pin 19] - PF8 [pin 20] - PF9 [pin 21] - PG0 [pin 56] - PG1 [pin 57] - PG10 [pin 125] - PG11 [pin 126] - PG12 [pin 127] - PG13 [pin 128] - PG14 [pin 129] - PG2 [pin 87] - PG3 [pin 88] - PG4 [pin 89] - PG5 [pin 90] - PG6 [pin 91] - PG7 [pin 92] - PG8 [pin 93] - PG9 [pin 124] - PH0 [pin 23] - PH1 [pin 24] - VBAT [pin 6] - VDD [pin 108] - VDD [pin 144] - VDD [pin 39] - VDD [pin 17] - VDD [pin 84] - VDD [pin 121] - VDD [pin 62] - VDD [pin 72] - VDD [pin 52] - VDD12 [pin 70] - VDD12 [pin 142] - VDDA [pin 33] - VDDIO2 [pin 95] - VDDIO2 [pin 131] - VDDUSB [pin 106] - VREF- [pin 31] - VREF+ [pin 32] - VSS [pin 120] - VSS [pin 130] - VSS [pin 107] - VSS [pin 61] - VSS [pin 16] - VSS [pin 94] - VSS [pin 83] - VSS [pin 143] - VSS [pin 51] - VSS [pin 38] - VSS [pin 71] - VSSA [pin 30] ### U2 — [STM32L4R7AII6](https://www.flux.ai/vasyl/stm32l4r7aii6~mky.md) - Manufacturer Name: STMicroelectronics - Manufacturer Part Number: STM32L4R7AII6 - Datasheet URL: http://www.st.com/content/ccc/resource/technical/document/datasheet/group3/98/80/dc/e5/f8/4b/4b/a3/DM00366448/files/DM00366448.pdf/jcr:content/translations/en.DM00366448.pdf - Part Type: Microcontroller **Pins:** - NRST [pin H3] - OPAMP1_VINM [pin M1] - OPAMP2_VINM [pin N4] - PA0 [pin K3] - PA1 [pin N2] - PA10 [pin F9] - PA11 [pin E13] - PA12 [pin D13] - PA13 [pin A11] - PA14 [pin A10] - PA15 [pin A9] - PA2 [pin N1] - PA3 [pin M2] - PA4 [pin L3] - PA5 [pin K4] - PA6 [pin M4] - PA7 [pin L4] - PA8 [pin G8] - PA9 [pin F10] - PB0 [pin K5] - PB1 [pin L5] - PB10 [pin N9] - PB11 [pin H8] - PB12 [pin N12] - PB13 [pin N13] - PB14 [pin M13] - PB15 [pin M12] - PB2 [pin N5] - PB3 [pin A6] - PB4 [pin A5] - PB5 [pin B5] - PB6 [pin C5] - PB7 [pin D5] - PB8 [pin C4] - PB9 [pin D4] - PC0 [pin J2] - PC1 [pin J3] - PC10 [pin D9] - PC11 [pin E9] - PC12 [pin F8] - PC13 [pin E1] - PC14 [pin F1] - PC15 [pin G1] - PC2 [pin J4] - PC3 [pin K1] - PC4 [pin H5] - PC5 [pin J5] - PC6 [pin F11] - PC7 [pin G12] - PC8 [pin G10] - PC9 [pin G9] - PD0 [pin B8] - PD1 [pin C8] - PD10 [pin J13] - PD11 [pin K12] - PD12 [pin K11] - PD13 [pin K13] - PD14 [pin K10] - PD15 [pin H11] - PD2 [pin D8] - PD3 [pin E8] - PD4 [pin C7] - PD5 [pin D7] - PD6 [pin E7] - PD7 [pin F7] - PD8 [pin L11] - PD9 [pin L10] - PE0 [pin A4] - PE1 [pin B4] - PE10 [pin H7] - PE11 [pin N8] - PE12 [pin M8] - PE13 [pin L8] - PE14 [pin K8] - PE15 [pin J8] - PE2 [pin D3] - PE3 [pin D2] - PE4 [pin D1] - PE5 [pin E4] - PE6 [pin E3] - PE7 [pin L7] - PE8 [pin K7] - PE9 [pin J7] - PF0 [pin F5] - PF1 [pin F4] - PF10 [pin H4] - PF11 [pin M5] - PF12 [pin N6] - PF13 [pin M6] - PF14 [pin L6] - PF15 [pin K6] - PF2 [pin F3] - PF3 [pin G3] - PF4 [pin G4] - PF5 [pin G5] - PG0 [pin J6] - PG1 [pin H6] - PG10 [pin D6] - PG11 [pin E6] - PG12 [pin F6] - PG13 [pin G7] - PG14 [pin G6] - PG15 [pin C6] - PG2 [pin J12] - PG3 [pin J11] - PG4 [pin J10] - PG5 [pin J9] - PG6 [pin G11] - PG7 [pin H10] - PG8 [pin H9] - PG9 [pin B7] - PH0 [pin H1] - PH1 [pin J1] - PH10 [pin M9] - PH11 [pin M10] - PH12 [pin B13] - PH13 [pin C9] - PH14 [pin A13] - PH15 [pin B12] - PH2 [pin A2] - PH3 [pin E5] - PH4 [pin K9] - PH5 [pin L9] - PH6 [pin E11] - PH7 [pin D12] - PH8 [pin N10] - PH9 [pin D11] - PI0 [pin A12] - PI1 [pin B11] - PI10 [pin A1] - PI11 [pin C3] - PI2 [pin B10] - PI3 [pin C10] - PI4 [pin D10] - PI5 [pin E10] - PI6 [pin B9] - PI7 [pin B2] - PI8 [pin C11] - PI9 [pin B1] - VBAT [pin E2] - VDD [pin C13] - VDD [pin G2] - VDD [pin L12] - VDD [pin G13] - VDD [pin N3] - VDD [pin A8] - VDD [pin N7] - VDD [pin N11] - VDD [pin C1] - VDD [pin A3] - VDD [pin H13] - VDDA [pin L2] - VDDIO2 [pin F12] - VDDIO2 [pin B6] - VDDUSB [pin E12] - VREF+ [pin L1] - VSS [pin H2] - VSS [pin C2] - VSS [pin F2] - VSS [pin F13] - VSS [pin M7] - VSS [pin L13] - VSS [pin A7] - VSS [pin C12] - VSS [pin B3] - VSS [pin H12] - VSS [pin M11] - VSS [pin M3] - VSSA [pin K2] ### U3 — [MCP1700T-3302E-TT](https://www.flux.ai/adrian95/mcp1700t-3302e-tt~h60.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Name: Microchip Technology - Datasheet URL: https://datasheet.octopart.com/MCP1700T-3302E/TT-Microchip-datasheet-532260.pdf - Manufacturer Part Number: MCP1700T-3302E/TT **Pins:** - GND [pin 1] - VI [pin 3] - VO [pin 2] ### U4 — [LM36011YKBR](https://www.flux.ai/jecstronic/lm36011ykbr~r5u.md) - Manufacturer Part Number: LM36011YKBR - Part Type: Integrated Circuit - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm36011.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments **Pins:** - GND [pin A1] - IN_1 [pin A2] - IN_2 [pin C1] - LED [pin D1] - NC [pin B1] - SCL [pin D2] - SDA [pin C2] - STROBE [pin B2] ### U5 — LT8602EUJ#PBF - Manufacturer Part Number: LT8602EUJ#PBF - Part Type: Integrated Circuit - Manufacturer Name: Analog Devices - Compliance: AEC-Q100 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://cdn2.flux.ai/copilot-datasheets/pdf-upload-b9fe7549d320859ac7b938f48548ca32e9739fd6b29109dfd0fc17b3484481e0/3b071c48f3c87d3bcf24db098842b677ce7f9353133b55448c1825513d350c04.pdf?GoogleAccessId=graviton-mvp%40appspot.gserviceaccount.com&Expires=4863515075&Signature=Hg8BgXNuk73L4tSB8VGMCbZQ8c1Z0U8AicZsDG8rS8TQEXtFy759EDSBwEiyWlVtQBYw8fOceWf8QHn83ztFvK7%2Bs2Zw9TrwBgDatKhxSf7YJ9GsoTrPy9S2HoFBXBTFotuLe07JmN6NnZy9oDzeCXPmhhJc2IpawXGbkSI6qQGLQwfmUVngIeP1bLcntX%2Fy80pIYmpRloVbgOFOXWJxX9y%2Fmz6EVMOj2bJjzn1fZ%2BsJ5IZYq8c3vdsHWqS%2BgIVvK5126C%2BEVymjqZxj6xAGJpOKpYdB22DMCZhVFWWtUzq%2Bmh%2BEqYtEkq9i11MVNPVUjnxvxqXAflAKqL6T3Wav1w%3D%3D - Package or Case Code: QFN50P600X600X40-41N **Pins:** - 23 [pin 23] - 19 [pin 19] - 40 [pin 40] - 35 [pin 35] - 36 [pin 36] - 37 [pin 37] - 39 [pin 39] - 38 [pin 38] - 7 [pin 7] - 34 [pin 34] - BIAS [pin 10] - BST1 [pin 4] - BST2 [pin 5] - CPOR [pin 22] - EN/UVLO [pin 26] - FB1 [pin 31] - FB3 [pin 32] - FB4 [pin 24] - GND [pin 16] - GND [pin 8] - GND [pin 30] - GND [pin 13] - GND [pin 2] - GND [pin 9] - GND [pin 20] - GND (Exposed Pad) [pin 41] - INTVCC [pin 33] - PG1 [pin 1] - PG2 [pin 11] - PG4 [pin 12] - PVIN2 [pin 14] - PVIN4 [pin 17] - RT [pin 28] - RUN3 [pin 29] - RUN4 [pin 18] - SW1 [pin 3] - SW2 [pin 6] - SW4 [pin 15] - TRKSS1 [pin 25] - TRKSS1 [pin 21] - VIN [pin 27] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/nico/sc-selection-1~rg](https://www.flux.ai/nico/sc-selection-1~rg).* --- *Generated from [https://www.flux.ai/nico/sc-selection-1~rg](https://www.flux.ai/nico/sc-selection-1~rg)*