# Smart Light Project v2 ## Description Modular ESP32/SIM7080G Baseboard with Robust Power and Peripheral Integration ## Project Details - **Owner:** cvetantokovsmartinvent - **Created:** 11/10/2025 - **Last Updated:** 11/11/2025 - **Visibility:** Public - **System Architecture:** ```mermaid graph TD subgraph Power Inputs IRM["On-board IRM-10-5 Module"] -->|5V| BulkCap["1000µF Bulk Capacitor"] HDR["External 2-pin HDR-15-5 Connector"] -->|5V| BulkCap end BulkCap --> LoadSwitch["Load Switch"] LoadSwitch -->|5V Rail| VCC5["5V"] subgraph Protection VCC5 --> TVS["ESD/TVS Protections"] end VCC5 --> ESP32["ESP32 DevKitC (38-pin)"] VCC5 --> SIM["SIM7080G Core Board"] VCC5 --> MAX485["RS-485 MAX485 Module"] VCC5 --> MEZZA["MEZZ-A 2×5 Header"] VCC5 --> TB_R485["TB RS-485"] VCC5 --> TB_I2C["TB I2C-SENS"] VCC5 --> TB_TEMP["TB TEMP-1W"] VCC5 --> TB_TAMP["TB TAMPER"] SIM -->|1.8V Data| LevelShift["1.8V Level-Shifter"] LevelShift --> ESP32 ``` - **Controlled Impedance Pair:** width 100.0 mm, height 110.0 mm - **Power Input Source:** On-board IRM-10-5 ## Key Components ### D? — [SMF05C.TCT](https://www.flux.ai/adrian95/smf05cptct.md) - Manufacturer Name: Semtech Corporation - Role Details: Multi-channel ESD protection for interface signals - Datasheet URL: https://www.verical.com/datasheet/semtech-international-esd-supressors-SMF05C-TCT-89007.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role: Protection - Manufacturer Part Number: SMF05C.TCT - Part Type: TVS Diode **Pins:** - CATHODE_1 [pin 1] - CATHODE_2 [pin 3] - CATHODE_3 [pin 4] - CATHODE_4 [pin 5] - CATHODE_5 [pin 6] - COMMON_ANODE [pin 2] ### D? — [SMCJ5.0A-TP](https://www.flux.ai/lcsc/smcj5p0a-tp.md) - Manufacturer Part Number: SMCJ5.0A-TP - Part Type: TVS - Role Details: 5 V surge protection on power rail - JLCPCB Part Class: Extended Part - LCSC Part Number: C1973633 - Role: Protection - Manufacturer Name: CJ Electronics - Package or Case Code: SMC_L6.9-W5.9-LS7.9-RD **Pins:** - 1 [pin 1] - 2 [pin 2] ### D3 — [SMCJ5.0A-TP](https://www.flux.ai/lcsc/smcj5p0a-tp.md) - LCSC Part Number: C1973633 - Role: Protection - Package or Case Code: SMC_L6.9-W5.9-LS7.9-RD - Manufacturer Name: CJ Electronics - Manufacturer Part Number: SMCJ5.0A-TP - Role Details: TVS diode for TAMPER net - JLCPCB Part Class: Extended Part - Max Reverse Voltage: 5V - Part Type: TVS **Pins:** - 1 [pin 1] - 2 [pin 2] ### J1 — [2x5 Pin Shrouded Header](https://www.flux.ai/rex-flux/2x5-pin-shrouded-header.md) - Role Details: MEZZ-A 2×5 header for Energy M3 - Role: Connector - Manufacturer Part Number: 61201021621 - Manufacturer Name: Würth Elektronik - Part Type: Connector - Datasheet URL: https://www.we-online.com/catalog/datasheet/61201021621.pdf **Pins:** - P1 [pin 1] - P10 [pin 10] - P2 [pin 2] - P3 [pin 3] - P4 [pin 4] - P5 [pin 5] - P6 [pin 6] - P7 [pin 8] - P7 [pin 7] - P9 [pin 9] ### PS1 — [IRM-10-5](https://www.flux.ai/vasy_skral/irm-10-5.md) - Manufacturer Name: MEAN WELL USA Inc. - Datasheet URL: https://www.meanwellusa.com/upload/pdf/IRM-10/IRM-10-spec.pdf - Role: Power Source - Manufacturer Part Number: IRM-10-5 - Role Details: On-board IRM-10-5 AC/DC module, 5 V output, 85–305 VAC input - Part Type: ACDC **Pins:** - -Vo [pin 3] - +Vo [pin 4] - AC/L [pin 2] - AC/N [pin 1] ### Q1 — [MMBT3904-TP](https://www.flux.ai/jecstronic/mmbt3904-tp.md) - Role: Driver - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Micro Commercial Co - Datasheet URL: https://www.mccsemi.com/pdf/Products/MMBT3904(SOT-23).pdf - Role Details: Driver for SIM_PWRKEY signal - Part Type: Transistor - Manufacturer Part Number: MMBT3904-TP **Pins:** - B [pin 1] - C [pin 3] - E [pin 2] ### Q2 — [MMBT3904-TP](https://www.flux.ai/jecstronic/mmbt3904-tp.md) - Role: Driver - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Driver for SIM_RESET signal - Manufacturer Name: Micro Commercial Co - Datasheet URL: https://www.mccsemi.com/pdf/Products/MMBT3904(SOT-23).pdf - Part Type: Transistor - Manufacturer Part Number: MMBT3904-TP **Pins:** - B [pin 1] - C [pin 3] - E [pin 2] ### TB1, TB2, TB3, TB4 — [282837-2](https://www.flux.ai/vasy_skral/282837-2.md) - Role Details: Terminal block for RS-485, I2C-SENS, TEMP-1W, TAMPER - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Manufacturer Name: TE Connectivity AMP Connectors - Role: Connector - Manufacturer Part Number: 282837-2 - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] ### TB1, TB2, TB3, TB4 — [282837-2](https://www.flux.ai/vasy_skral/282837-2.md) - Manufacturer Name: TE Connectivity AMP Connectors - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Part Type: Connector - Manufacturer Part Number: 282837-2 - Role: Connector - Role Details: Terminal block for RS-485, I2C-SENS, TEMP-1W, TAMPER **Pins:** - 1 [pin 1] - 2 [pin 2] ### TB1, TB2, TB3, TB4 — [282837-2](https://www.flux.ai/vasy_skral/282837-2.md) - Role: Connector - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Role Details: Terminal block for RS-485, I2C-SENS, TEMP-1W, TAMPER - Manufacturer Name: TE Connectivity AMP Connectors - Part Type: Connector - Manufacturer Part Number: 282837-2 **Pins:** - 1 [pin 1] - 2 [pin 2] ### TB1, TB2, TB3, TB4 — [282837-2](https://www.flux.ai/vasy_skral/282837-2.md) - Role Details: Terminal block for RS-485, I2C-SENS, TEMP-1W, TAMPER - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Role: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Manufacturer Part Number: 282837-2 - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] ### TB5 — [282837-2](https://www.flux.ai/vasy_skral/282837-2.md) - Manufacturer Part Number: 282837-2 - Role Details: Terminal block for external 5V input - Part Type: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Role: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] ### TB6 — [282837-2](https://www.flux.ai/vasy_skral/282837-2.md) - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=282837&DocType=Customer+Drawing&DocLang=English - Manufacturer Name: TE Connectivity AMP Connectors - Manufacturer Part Number: 282837-2 - Role Details: 2-pin terminal-block used as termination enable jumper for RS-485 120 Ω termination - Part Type: Connector - Role: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] ### U1 — [ESP32-DEVKITC](https://www.flux.ai/vasy_skral/esp32-devkitc.md) - Symbol Style: Parametric - Role Details: ESP32 DevKitC 38-pin - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: ESP32-DEVKITC - Part Type: Development Boards - Manufacturer Name: Espressif Systems - Datasheet URL: http://espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf - Role: Microcontroller Module **Pins:** - 3V3 [pin 1] - CLK [pin 20] - CMD [pin 18] - EN [pin 2] - EXT_5V [pin 19] - GND1 [pin 14] - GND2 [pin 32] - GND3 [pin 38] - IO0 [pin 25] - IO12 [pin 13] - IO13 [pin 15] - IO14 [pin 12] - 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 9] - IO26 [pin 10] - IO27 [pin 11] - IO32 [pin 7] - IO33 [pin 8] - IO34 [pin 5] - IO35 [pin 6] - IO4 [pin 26] - IO5 [pin 29] - RXD0 [pin 34] - SD0 [pin 21] - SD1 [pin 22] - SD2 [pin 16] - SD3 [pin 17] - SENSOR_VN [pin 4] - SENSOR_VP [pin 3] - TXD0 [pin 35] ### U2 — [SIM7080G](https://www.flux.ai/adrian95/sim7080g.md) - Part Type: Integrated Circuit - Datasheet URL: https://www.waveshare.com/w/upload/e/e7/SIM7080G_Hardware_Design_V1.03.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SIM7080G - Role Details: SIM7080G Core Board with SMA connector - Role: Cellular Module - Manufacturer Name: SIMCom Wireless Solutions Limited **Pins:** - ~SPI_MOSI [pin 49] - ~USB_BOOT [pin 20] - ADC [pin 38] - ANT_CONTROL0 [pin 44] - ANT_CONTROL1 [pin 43] - GND_1 [pin 8] - GND_10 [pin 37] - GND_11 [pin 45] - GND_12 [pin 63] - GND_13 [pin 66] - GND_14 [pin 67] - GND_15 [pin 69] - GND_16 [pin 70] - GND_17 [pin 71] - GND_18 [pin 72] - GND_19 [pin 73] - GND_2 [pin 13] - GND_20 [pin 74] - GND_21 [pin 75] - GND_22 [pin 76] - GND_23 [pin 77] - GND_3 [pin 19] - GND_4 [pin 21] - GND_5 [pin 27] - GND_6 [pin 30] - GND_7 [pin 31] - GND_8 [pin 33] - GND_9 [pin 36] - GNSS_ANT [pin 68] - GPIO1 [pin 57] - GPIO2 [pin 58] - GPIO3 [pin 59] - GPIO4 [pin 60] - GPIO5 [pin 14] - I2C_SCL [pin 65] - I2C_SDA [pin 64] - NC_1 [pin 28] - NC_2 [pin 29] - NC_3 [pin 46] - NC_4 [pin 47] - NC_5 [pin 52] - NC_6 [pin 53] - NC_7 [pin 54] - NC_8 [pin 55] - NC_9 [pin 56] - NETLIGHT [pin 41] - PCM_CLK [pin 11] - PCM_DIN [pin 9] - PCM_DOUT [pin 10] - PCM_SYNC [pin 12] - PWRKEY [pin 39] - RF_ANT [pin 32] - SIM_CLK [pin 16] - SIM_DATA [pin 15] - SIM_RST [pin 17] - SIM_VDD [pin 18] - SPI_CLK [pin 50] - SPI_CS [pin 48] - SPI_MISO [pin 51] - STATUS [pin 42] - UART1_CTS [pin 4] - UART1_DCD [pin 5] - UART1_DTR [pin 6] - UART1_RI [pin 7] - UART1_RTS [pin 3] - UART1_RXD [pin 2] - UART1_TXD [pin 1] - UART2_RXD [pin 23] - UART2_TXD [pin 22] - UART3_RXD [pin 62] - UART3_TXD [pin 61] - USB_DM [pin 26] - USB_DP [pin 25] - USB_VBUS [pin 24] - VBAT_1 [pin 34] - VBAT_2 [pin 35] - VDD_EXT [pin 40] ### U4 — [MP5016GQH-P](https://www.flux.ai/monolithicpower/mp5016gqh-p.md) - Datasheet URL: https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP5016GQH-Z - Package or Case Code: QFN10-1p5X2_MNP - Manufacturer Part Number: MP5016GQH-P - Product Image Url: https://www.monolithicpower.com/pub/media/catalog/product/M/P/MP5016_428_1.jpg - Voltage: 5V - Product Info Url: https://www.monolithicpower.com/en/catalog/product/view/id/428?utm_source=ultralibrarian&utm_medium=component_search&utm_campaign=listing - Role Details: Load switch for SIM7080G power rail, ≥2A surge - Max Current: 2A - Manufacturer Name: Monolithic Power Systems - Role: Switching **Pins:** - DV/DT [pin 10] - EN [pin 9] - GATE [pin 8] - GND [pin 3] - ILIMIT [pin 4] - MODE [pin 5] - SOURCE [pin 7] - SOURCE [pin 6] - VCC [pin 1] - VCC [pin 2] ### U5 — [TXB0102DCUTG4](https://www.flux.ai/lcsc/txb0102dcutg4.md) - Manufacturer Part Number: TXB0102DCUTG4 - Package or Case Code: VSSOP-8_L2.3-W2.0-P0.50-LS3.1-BL - JLCPCB Part Class: Extended Part - LCSC Part Number: C2677610 - Part Type: Translators / Level Shifters - Role Details: 2-channel 1.8 V level-shifter for SIM UART signals - Manufacturer Name: TI(德州仪器) - Role: Logic-level Shifting **Pins:** - A1 [pin 5] - A2 [pin 4] - B1 [pin 8] - B2 [pin 1] - GND [pin 2] - OE [pin 6] - VCCA [pin 3] - VCCB [pin 7] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/cvetantokovsmartinvent/smart-light-project-v2](https://www.flux.ai/cvetantokovsmartinvent/smart-light-project-v2).* --- *Generated from [https://www.flux.ai/cvetantokovsmartinvent/smart-light-project-v2](https://www.flux.ai/cvetantokovsmartinvent/smart-light-project-v2)*