# Portable LoRaWAN board ## Description Ultra-Low-Power Solar CO₂ Monitor with Programmable LoRa-E5, Low-Power I²C CO₂ Sensor, MPPT Solar Input and 10-Year Battery Life #co2 #lowpower #mppt #solar #lora #stm ## Project Details - **Owner:** vasyl - **Created:** 2/17/2023 - **Last Updated:** 3/30/2023 - **Visibility:** Public - **GitHub:** https://github.com/MoChANvAsIl/Portable-LoRaWAN-board - **System Architecture:** ```mermaid flowchart TD A[LoRa-E5 Module] -->|I2C| B[CO2 Sensor] C[Power-Gating Switch] --> B C --> D[PMIC (NH2D0245)] D --> E[LDO (TPS7A0533)] E --> A D --> F[Battery] D --> G[Solar Input] ``` - **Stars:** 22 - **Forks:** 16 - **Copies:** 17 ## Key Components ### B1 — [BK-18650-PC2](https://www.flux.ai/vasyl/bk-18650-pc2~kg2.md) - Voltage: 4.2V - Manufacturer Part Number: BK-18650-PC2 - Manufacturer Name: MPD (Memory Protection Devices) - Datasheet URL: https://www.memoryprotectiondevices.com/datasheets/BK-18650-PC2-datasheet.pdf **Pins:** - NEGATIVE [pin -] - POSITIVE [pin +] ### IC1 — [CP2102N-A02-GQFN28](https://www.flux.ai/vasyl/cp2102n-a02-gqfn28~xo8.md) - Datasheet URL: https://www.silabs.com/documents/public/data-sheets/cp2102n-datasheet.pdf - Manufacturer Name: Silicon Labs - Part Type: Integrated Circuit - Manufacturer Part Number: CP2102N-A02-GQFN28 **Pins:** - ~CTS [pin 23] - ~DCD [pin 1] - ~DSR [pin 27] - ~DTR [pin 28] - ~RI~/CLK [pin 2] - ~RST [pin 9] - ~RTS [pin 24] - ~RXT~/GPIO.1 [pin 18] - ~SUSPEND [pin 11] - ~TXT~/GPIO.0 [pin 19] - ~WAKEUP~/GPIO.3 [pin 16] - CHR0 [pin 15] - CHR1 [pin 14] - CHREN [pin 13] - D- [pin 5] - D+ [pin 4] - GND [pin 29] - GND [pin 3] - GPIO.4 [pin 22] - GPIO.5 [pin 21] - GPIO.6 [pin 20] - NC [pin 10] - RS485/GPIO.2 [pin 17] - RXD [pin 25] - SUSPEND [pin 12] - TXD [pin 26] - USB [pin 8] - VDD [pin 6] - VREGIN [pin 7] ### J1 — [0532610471](https://www.flux.ai/vasyl/0532610471~vm.md) - Manufacturer Part Number: 0532610471 - Part Type: Connector - Datasheet URL: https://www.molex.com/pdm_docs/sd/532610471_sd.pdf - Manufacturer Name: Molex **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - SHIELD [pin S1] - SHIELD__1 [pin S2] ### J2 — [USB-C 2.0 Receptacle](https://www.flux.ai/corynrobinson/usb-c-20-receptacle~cf.md) - Purchase Url: https://www.digikey.com/en/products/detail/gct/USB4105-GF-A/11198441 - Manufacturer Name: GTC - Datasheet URL: https://gct.co/files/drawings/usb4105.pdf - Manufacturer Part Number: USB4105-GF-A - Part Type: Connector **Pins:** - CC1 - CC2 - D- - D- - D+ - D+ - GND - GND - GND - GND - SBU1 - SBU2 - VBUS - VBUS - VBUS - VBUS ### J3 — [SMD SMA](https://www.flux.ai/vasyl/smd-sma~cv1.md) - Part Type: Integrated Circuit **Pins:** - ~ [pin 1] - ~ [pin 2] ### J4 — [B2B-PH-SM4-TB(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-sm4-tblfsn~84.md) - Manufacturer Name: JST Sales America Inc. - Manufacturer Part Number: JST Sales America Inc. - Part Type: Connector - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] ### J5 — [0532610471](https://www.flux.ai/vasyl/0532610471~vm.md) - Manufacturer Name: Molex - Datasheet URL: https://www.molex.com/pdm_docs/sd/532610471_sd.pdf - Manufacturer Part Number: 0532610471 - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - SHIELD [pin S1] - SHIELD__1 [pin S2] ### Q1 — [2N7002KT1G](https://www.flux.ai/lcsc/2n7002kt1g~0laz.md) - Manufacturer Name: onsemi(安森美) - Mount: Surface Mount - LCSC Part Number: C116584 - Part Type: Transistor - Role Details: Power-gate control transistor for U6 ON pin - Role: Switch - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/MOSFET_ON-Semicon_2N7002KT1G_ON-Semicon-ON-2N7002KT1G_C116584.html - Package: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Manufacturer Part Number: 2N7002KT1G - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1811041153_onsemi-2N7002KT1G_C116584.pdf - Package or Case Code: SOT-23 **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### SW1 — [PCM12SMTR](https://www.flux.ai/jharwinbarrozo/pcm12smtr~ngv.md) - Part Type: Switch - Manufacturer Name: C&K - Manufacturer Part Number: PCM12SMTR - Datasheet URL: https://www.ckswitches.com/media/1424/pcm.pdf **Pins:** - COM - P1 - P3 - SH1 - SH2 - SH3 - SH4 ### SW4 — [PTS810SJK250SMTRLFS](https://www.flux.ai/jharwinbarrozo/pts810sjk250smtrlfs~6tl.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1810121650_C-K-PTS810SJK250SMTRLFS_C221896.pdf - Manufacturer Name: C&K - Manufacturer Part Number: PTS810SJK250SMTRLFS - Part Type: Switch **Pins:** - P1 - P3 ### U1 — [LoRa-E5 (STM32WLE5JC)](https://www.flux.ai/vasyl/lora-e5-stm32wle5jc~wpx.md) - Datasheet URL: https://files.seeedstudio.com/products/317990687/res/LoRa-E5%20module%20datasheet_V1.0.pdf - Manufacturer Name: Seeed Technology Co., Ltd - Manufacturer Part Number: 317990687 - Part Type: RF Transceiver Module **Pins:** - GND [pin 2] - GND [pin 14] - GND [pin 16] - GND [pin 22] - PA0 [pin 23] - PA10 [pin 27] - PA13 [pin 3] - PA14 [pin 4] - PA15 [pin 6] - PA2 [pin 19] - PA3 [pin 18] - PA9 [pin 21] - PB0 [pin 28] - PB10 [pin 20] - PB13 [pin 24] - PB14 [pin 26] - PB15 [pin 5] - PB3 [pin 8] - PB4 [pin 7] - PB5 [pin 11] - PB6 [pin 10] - PB7 [pin 9] - PB9 [pin 25] - PC0 [pin 13] - PC1 [pin 12] - RFIO [pin 15] - RST [pin 17] - VCC [pin 1] ### U2 — [NH2D0245](https://www.flux.ai/vasyl/nh2d0245~dmk.md) - Manufacturer Part Number: NH2D0245 - Manufacturer Name: Nowi - Part Type: Power Management - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Nowi/NH2D0245_Datasheet.pdf **Pins:** - DC_IN [pin 14] - ENABLE [pin 2] - GND [pin 7] - GND [pin 17] - GND [pin 13] - GND [pin 4] - GND [pin 6] - PWRS [pin 8] - R0 [pin 9] - R1 [pin 10] - R2 [pin 11] - REF [pin 3] - SYS_RDY [pin 15] - VBAT [pin 5] - VBAT [pin 12] ### U3 — [TC2030](https://www.flux.ai/vasyl/tc2030~ac2.md) - Datasheet URL: https://www.snapeda.com/parts/TC2050-IDC-NL/Tag-Connect%20LLC/datasheet/ - Manufacturer Name: Microchip Technology - Manufacturer Part Number: TC2030 - Part Type: Tag-connectors **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### U4 — [TPS7A0533PDBVT](https://www.flux.ai/vasyl/tps7a0533pdbvt~cg1.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps7a05.pdf - Manufacturer Part Number: TPS7A0533PDBVT - Part Type: LDO - Manufacturer Name: Texas Instruments **Pins:** - EN [pin 3] - GND [pin 2] - IN [pin 1] - NC [pin 4] - OUT [pin 5] ### U5 — [SCD41-D-R1](https://www.flux.ai/adrian95/scd41-d-r1~bhj.md) - Mount: Surface Mount - Manufacturer Name: Sensirion AG - Package or Case Code: LGA - Datasheet URL: https://www.mouser.com/datasheet/2/682/Sensirion_CD_DS_SCD40_SCD41_Datasheet_D1-3305949.pdf - Part Type: Sensor - Role Details: CO₂ sensor, low-power I²C interface - License: https://creativecommons.org/licenses/by/4.0/ - Role: Sensor - Manufacturer Part Number: SCD41-D-R1 - Package: FP_SCD41DR1 **Pins:** - DNC_1 [pin 1] - DNC_10 [pin 14] - DNC_11 [pin 15] - DNC_12 [pin 16] - DNC_13 [pin 17] - DNC_14 [pin 18] - DNC_2 [pin 2] - DNC_3 [pin 3] - DNC_4 [pin 4] - DNC_5 [pin 5] - DNC_6 [pin 8] - DNC_7 [pin 11] - DNC_8 [pin 12] - DNC_9 [pin 13] - GND_1 [pin 6] - GND_2 [pin 20] - GND_3 [pin 21] - SCL [pin 9] - SDA [pin 10] - VDD [pin 7] - VDDH [pin 19] ### U6 — [AP22916BCA4-7](https://www.flux.ai/collinsemasi/ap22916bca4-7~61.md) - Part Type: Power Management - Package or Case Code: SOT-23-5 - Role Details: Power-gating switch for CO₂ sensor supply - Manufacturer Name: Diodes Incorporated - Datasheet URL: https://www.diodes.com/assets/Datasheets/AP22916.pdf - Mount: Surface Mount - Role: Protection - Package: SOT-23-5 - Manufacturer Part Number: AP22916BCA4-7 **Pins:** - GND [pin B1] - ON [pin B2] - VIN [pin A2] - VOUT [pin A1] ### U7 — [PCA9600DP](https://www.flux.ai/kicad-part-library/pca9600dp~a2.md) - Role: Interface - Datasheet URL: https://www.nxp.com/docs/en/data-sheet/PCA9600.pdf - Manufacturer Name: NXP Semiconductors NV - Package or Case Code: TSSOP-8_3x3mm_P0.65mm - Role Details: I²C bus buffer between LoRa-E5 and CO₂ sensor - Manufacturer Part Number: PCA9600DP **Pins:** - GND [pin 4] - RX [pin 2] - RY [pin 6] - SX [pin 1] - SY [pin 7] - TX [pin 3] - TY [pin 5] - VCC [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vasyl/portable-lorawan-board~0pb](https://www.flux.ai/vasyl/portable-lorawan-board~0pb).* --- *Generated from [https://www.flux.ai/vasyl/portable-lorawan-board~0pb](https://www.flux.ai/vasyl/portable-lorawan-board~0pb)*