# ENVIRONMENTAL EXPOSURE RISK METER ## Description Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip. ## Project Details - **Owner:** jr98 - **Created:** 2/23/2023 - **Last Updated:** 2/28/2023 - **Visibility:** Public - **Stars:** 31 - **Forks:** 79 - **Copies:** 55 ## Key Components ### J1 — [PPTC041LFBN-RC](https://www.flux.ai/vasy_skral/pptc041lfbn-rc.md) - Manufacturer Part Number: PPTC041LFBN-RC - Manufacturer Name: Sullins Connector Solutions - Part Type: Connector - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Sullins%20PDFs/Female_Headers.100_DS.pdf **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### J2 — [PPTC041LFBN-RC](https://www.flux.ai/vasy_skral/pptc041lfbn-rc.md) - Manufacturer Part Number: PPTC041LFBN-RC - Manufacturer Name: Sullins Connector Solutions - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Sullins%20PDFs/Female_Headers.100_DS.pdf - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### J3 — [QWIIC I2C JST Connector](https://www.flux.ai/vasy_skral/qwiic-i2c-jst-connector.md) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/JST%20PDFs/SR%20Connector.pdf - Manufacturer Part Number: SM04B-SRSS-TB - Part Type: Connector - Manufacturer Name: JST Sales America Inc. **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J4 — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p.md) - Manufacturer Name: Ningbo Xinlaiya Elec. - Manufacturer Part Number: XY301V-A-5.0-2P **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J5 — [S2B-PH-K-S(LF)(SN)](https://www.flux.ai/adrian95/s2b-ph-k-slfsn.md) - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf - Part Type: Connector - Manufacturer Name: JST Sales America Inc. - Manufacturer Part Number: S2B-PH-K-S(LF)(SN) **Pins:** - P1 [pin 1] - P2 [pin 2] ### J6 — [B7B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b7b-ph-k-slfsn.md) - Manufacturer Part Number: B7B-PH-K-S(LF)(SN) - Part Type: Connector - Manufacturer Name: JST Sales America Inc. - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] ### LED1 — [LED 0603 (1608 Metric)](https://www.flux.ai/jharwinbarrozo/led-0603-1608-metric.md) - Part Type: LED **Pins:** - A - K ### Q2 — [BSS138](https://www.flux.ai/vasy_skral/bss138.md) - Part Type: Transistor - Manufacturer Name: onsemi - Manufacturer Part Number: BSS138 - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q3 — [BSS138](https://www.flux.ai/vasy_skral/bss138.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Part Type: Transistor - Manufacturer Name: onsemi - Manufacturer Part Number: BSS138 **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### SW1 — [TS-1088R-02026](https://www.flux.ai/jecstronic/ts-1088r-02026.md) - Manufacturer Name: XUNPU - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_XUNPU-TS-1088R-02026_C455280.pdf - Manufacturer Part Number: TS-1088R-02026 - Part Type: Switch **Pins:** - P1 - P2 ### SW2 — [TS-1088R-02026](https://www.flux.ai/jecstronic/ts-1088r-02026.md) - Part Type: Switch - Manufacturer Part Number: TS-1088R-02026 - Manufacturer Name: XUNPU - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_XUNPU-TS-1088R-02026_C455280.pdf **Pins:** - P1 - P2 ### U1 — [AP2112K-3.3TRG1](https://www.flux.ai/vasyl/ap2112k-33trg1.md) - Manufacturer Name: Diodes Incorporated - Manufacturer Part Number: AP2112K-3.3TRG1 - Datasheet URL: https://www.diodes.com/assets/Datasheets/AP2112.pdf - Part Type: Integrated Circuit **Pins:** - EN [pin 3] - GND [pin 2] - VIN [pin 1] - VOUT [pin 5] ### U2 — [ESP32-WROOM-32E](https://www.flux.ai/vasyl/esp32-wroom-32e.md) - Manufacturer Part Number: ESP32-WROOM-32 - Part Type: Integrated Circuit - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_en.pdf - Manufacturer Name: Espressif Systems **Pins:** - EN [pin 3] - GND [pin 1] - GND [pin 39] - GND [pin 38] - GND [pin 15] - IO0 [pin 25] - IO12 [pin 14] - IO13 [pin 16] - IO14 [pin 13] - IO15 [pin 23] - IO16 [pin 27] - IO17 [pin 28] - IO18 [pin 30] - IO19 [pin 31] - IO2 [pin 24] - IO21 [pin 33] - IO22 [pin 36] - IO23 [pin 37] - IO25 [pin 10] - IO26 [pin 11] - IO27 [pin 12] - IO32 [pin 8] - IO33 [pin 9] - IO34 [pin 6] - IO35 [pin 7] - IO4 [pin 26] - IO5 [pin 29] - NC [pin 32] - RXD0/IO3 [pin 34] - SCK/CLK [pin 20] - SCS/CMD [pin 19] - SDI/SD1 [pin 22] - SDO/SD0 [pin 21] - SENSOR_VN [pin 5] - SENSOR_VP [pin 4] - SHD/SD2 [pin 17] - SWP/SD3 [pin 18] - TXD0/IO1 [pin 35] - VDD [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/jr98/environmental-exposure-risk-meter](https://www.flux.ai/jr98/environmental-exposure-risk-meter).* --- *Generated from [https://www.flux.ai/jr98/environmental-exposure-risk-meter](https://www.flux.ai/jr98/environmental-exposure-risk-meter)*