# Eximport LoraLubePonto - New PCB ## Description Production-ready industrial 6 V battery-powered LoRaWAN DC motor controller using ESP32-S3FN8, SX1262 AU915, CP2102N USB-C programming, DRV8833 motor drive, TLV62568 buck regulation, protected battery input, and Heltec LoRa V3-compatible development workflow. ## Project Details - **Owner:** ricardosbotega - **Created:** 6/29/2026 - **Last Updated:** 6/29/2026 - **Visibility:** Public - **Operating Voltage:** 6V - **Software:** Arduino IDE - **Power Requirements:** Battery - **Implementation Details:** ESP32-S3FN8 SX1262 DRV8833 USB-C - **Connectivity:** LoRaWAN - **Domain:** Industrial IoT ## Key Components ### ANT1 — [RECE.20279.001E.01](https://www.flux.ai/jecstronic/recep20279p001ep01~tt9.md) - Manufacturer Part Number: RECE.20279.001E.01 - Manufacturer Name: Taoglas Limited - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 50 ohm U.FL antenna connector for 902–928 MHz LoRaWAN AU915/LA915 antenna; keep at board edge with 50 ohm RF route and ground-via stitching. - Role: Antenna Connector - Frequency: 902-928MHz - Datasheet URL: https://cdn.taoglas.com/datasheets/RECE.20279.001E.01.pdf - Controlled Impedance: 50Ω - Part Type: Connector **Pins:** - GND [pin 2] - GND [pin 3] - SIGNAL [pin 1] ### D1 — [SS34](https://www.flux.ai/collinsemasi/ss34~qf.md) - Role Details: Series Schottky option from BOM; P-channel MOSFET ideal diode may be substituted later for lower voltage drop - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode - Role: Reverse Polarity Protection - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/5335/SMASS340000S34.pdf - Manufacturer Name: NextGen Components Inc - Manufacturer Part Number: SS34 **Pins:** - A [pin 2] - C [pin 1] ### D2 — [SMBJ6.0CA](https://www.flux.ai/lcsc/smbj6p0ca~vera.md) - Forward Voltage: 0.7V at 1AV - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010132_Shikues-SMBJ6-0CA_C499910.pdf - Max Reverse Voltage: 6V - Diode Type: TVS Diode - Part Type: TVS - Product Info Url: https://lcsc.com/product-detail/TVS_Shikues-SMBJ6-0CA_C499910.html - Manufacturer Name: SHIKUES(时科) - Role Details: Provisional 6V SMBJ-family TVS; replace/verify exact unidirectional SMBJ6.0A or equivalent before production - LCSC Part Number: C499910 - Package or Case Code: SMB_L4.6-W3.6-LS5.3-BI - JLCPCB Part Class: Extended Part - Role: TVS Protection - Manufacturer Part Number: SMBJ6.0CA **Pins:** - 1 [pin 1] - 2 [pin 2] ### D3 — [SMBJ6.0CA](https://www.flux.ai/lcsc/smbj6p0ca~vera.md) - Forward Voltage: 0.7V at 1AV - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010132_Shikues-SMBJ6-0CA_C499910.pdf - Max Reverse Voltage: 6V - Part Type: TVS - Diode Type: TVS Diode - Manufacturer Name: SHIKUES(时科) - Product Info Url: https://lcsc.com/product-detail/TVS_Shikues-SMBJ6-0CA_C499910.html - LCSC Part Number: C499910 - Role: TVS Protection - Package or Case Code: SMB_L4.6-W3.6-LS5.3-BI - JLCPCB Part Class: Extended Part - Manufacturer Part Number: SMBJ6.0CA - Role Details: Motor transient clamp across motor output; final voltage rating to verify with motor and supply **Pins:** - 1 [pin 1] - 2 [pin 2] ### F1 — [0ZCC0150BF2C](https://www.flux.ai/cherepanyadima/0zcc0150bf2c~0m.md) - Manufacturer Part Number: 1206L050/15YR - Role Details: 1.5A hold PTC, verify trip curve against motor stall current and industrial temperature - Part Type: Fuse - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/1103/0ZCC_Series.pdf - Role: Protection - Manufacturer Name: Bel Fuse Inc. **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [XY115A-5.0-2P](https://www.flux.ai/jecstronic/xy115a-5p0-2p~p14.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2304140030_Ningbo-Xinlaiya-Elec--XY115A-5-0-2P_C784935.pdf - Connector Positions: 2 - Role: Power Input Connector - Connector Type: Spring clamp / push-in terminal block - Role Details: Engate rápido tipo mola/push-in, 2 vias, 5.0mm pitch, 6V battery input, rated margin above 2A peak for industrial field wiring. - Current Rating: 15A - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Ningbo Xinlaiya Elec. - Connector Pitch: 5.0mm - Manufacturer Part Number: XY115A-5.0-2P **Pins:** - Pin_1 [pin 1] - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_2 [pin 2] ### J2 — [XY115A-5.0-2P](https://www.flux.ai/jecstronic/xy115a-5p0-2p~p14.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2304140030_Ningbo-Xinlaiya-Elec--XY115A-5-0-2P_C784935.pdf - Connector Type: Spring clamp / push-in terminal block - Role Details: Engate rápido tipo mola/push-in, 2 vias, 5.0mm pitch, brushed DC motor output, rated margin above 2A peak and leaves flexibility for future higher-current motor-driver revision. - Part Type: Connector - Current Rating: 15A - Manufacturer Name: Ningbo Xinlaiya Elec. - Role: Motor Output Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: XY115A-5.0-2P - Connector Positions: 2 - Connector Pitch: 5.0mm **Pins:** - Pin_1 [pin 1] - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_2 [pin 2] ### J3 — [TYPE-C-2.0-16PIN-SMT-3-OR](https://www.flux.ai/lcsc/type-c-2p0-16pin-smt-3-or~957d.md) - LCSC Part Number: C2987387 - Role: USB-C Connector - Part Type: USB Connectors - JLCPCB Part Class: Extended Part - Manufacturer Part Number: TYPE-C-2.0-16PIN-SMT-3-OR - Role Details: USB 2.0 device/sink programming port; no battery charging - Manufacturer Name: CIKI(皓富) - Package or Case Code: USB-SMD_TYPE-C16PIN-1 **Pins:** - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 20 [pin 20] - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin B1A12] - GND [pin A1B12] - SBU1 [pin A8] - SBU2 [pin B8] - VBUS [pin A4B9] - VBUS [pin B4A9] ### Q1 — [MMBT3904 RFG](https://www.flux.ai/lcsc/mmbt3904-rfg~6908.md) - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - LCSC Part Number: C483927 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2001151033_Taiwan-Semiconductor-MMBT3904-RFG_C483927.pdf - Part Type: Bipolar Transistors - BJT - Product Info Url: https://lcsc.com/product-detail/New-Arrivals_Taiwan-Semiconductor-Taiwan-Semicon-MMBT3904-RFG_C483927.html - Role Details: Part of CP2102N DTR/RTS to ESP32 EN/GPIO0 auto-programming network; verify against Espressif reference before production release - Role: Auto Boot/Reset - JLCPCB Part Class: Extended Part - Manufacturer Name: Taiwan Semiconductor(台湾半导体) - Manufacturer Part Number: MMBT3904 RFG **Pins:** - B [pin 1] - C [pin 3] - E [pin 2] ### Q2 — [MMBT3904 RFG](https://www.flux.ai/lcsc/mmbt3904-rfg~6908.md) - Manufacturer Part Number: MMBT3904 RFG - Manufacturer Name: Taiwan Semiconductor(台湾半导体) - JLCPCB Part Class: Extended Part - Part Type: Bipolar Transistors - BJT - Product Info Url: https://lcsc.com/product-detail/New-Arrivals_Taiwan-Semiconductor-Taiwan-Semicon-MMBT3904-RFG_C483927.html - Role Details: Part of CP2102N DTR/RTS to ESP32 EN/GPIO0 auto-programming network; verify against Espressif reference before production release - Role: Auto Boot/Reset - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2001151033_Taiwan-Semiconductor-MMBT3904-RFG_C483927.pdf - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - LCSC Part Number: C483927 **Pins:** - B [pin 1] - C [pin 3] - E [pin 2] ### U1 — [ESP32-S3FN8](https://www.flux.ai/lcsc/esp32-s3fn8~t4ve.md) - Package or Case Code: QFN-56_L7.0-W7.0-P0.40-TL-EP4.0 - Manufacturer Name: ESPRESSIF(乐鑫) - Manufacturer Part Number: ESP32-S3FN8 - JLCPCB Part Class: Extended Part - Role Details: ESP32-S3FN8 with internal 8MB flash; 3.3V logic/control for LoRa, motor driver, and USB UART - Role: Main MCU - LCSC Part Number: C2913196 **Pins:** - CHIP_PU [pin 4] - EP [pin 57] - GPIO0 [pin 5] - GPIO1 [pin 6] - GPIO10 [pin 15] - GPIO11 [pin 16] - GPIO12 [pin 17] - GPIO13 [pin 18] - GPIO14 [pin 19] - GPIO17 [pin 23] - GPIO18 [pin 24] - GPIO19 [pin 25] - GPIO2 [pin 7] - GPIO20 [pin 26] - GPIO21 [pin 27] - GPIO3 [pin 8] - GPIO33 [pin 38] - GPIO34 [pin 39] - GPIO35 [pin 40] - GPIO36 [pin 41] - GPIO37 [pin 42] - GPIO38 [pin 43] - GPIO4 [pin 9] - GPIO45 [pin 51] - GPIO46 [pin 52] - GPIO5 [pin 10] - GPIO6 [pin 11] - GPIO7 [pin 12] - GPIO8 [pin 13] - GPIO9 [pin 14] - LNA_IN [pin 1] - MTCK [pin 44] - MTDI [pin 47] - MTDO [pin 45] - MTMS [pin 48] - SPICLK [pin 33] - SPICLK_N [pin 36] - SPICLK_P [pin 37] - SPICS0 [pin 32] - SPICS1 [pin 28] - SPID [pin 35] - SPIHD [pin 30] - SPIQ [pin 34] - SPIWP [pin 31] - U0RXD [pin 50] - U0TXD [pin 49] - VDD_SPI [pin 29] - VDD3P3 [pin 2] - VDD3P3 [pin 3] - VDD3P3_CPU [pin 46] - VDD3P3_RTC [pin 20] - VDDA [pin 56] - VDDA [pin 55] - XTAL_32K_N [pin 22] - XTAL_32K_P [pin 21] - XTAL_N [pin 53] - XTAL_P [pin 54] ### U2 — [SX1262IMLTRT](https://www.flux.ai/jecstronic/sx1262imltrt~l3n.md) - Manufacturer Name: Semtech Corporation - Role: LoRa Radio - Role Details: SX1262 LoRa radio for 902–928 MHz operation; target regional plan AU915 or LA915. RF network and matching must be verified for 915 MHz against Heltec V3/Semtech reference before routing/manufacturing. - Frequency: 902-928MHz - Manufacturer Part Number: SX1262IMLTRT - Datasheet URL: https://www.rfsolutions.co.uk/downloads/1537522406DS_SX1261-2_V1.1_SEMTECH.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Connectivity: LoRaWAN AU915/LA915 - Part Type: Integrated Circuit **Pins:** - BUSY [pin 14] - DCC_SW [pin 9] - DIO1 [pin 13] - DIO2 [pin 12] - DIO3 [pin 6] - GND_1 [pin 2] - GND_2 [pin 5] - GND_3 [pin 8] - GND_4 [pin 20] - GND_5 [pin 25] - MISO [pin 16] - MOSI [pin 17] - NRESET [pin 15] - NSS [pin 19] - RFI_N [pin 22] - RFI_P [pin 21] - RFO [pin 23] - SCK [pin 18] - VBAT [pin 10] - VBAT_IO [pin 11] - VDD_IN [pin 1] - VR_PA [pin 24] - VREG [pin 7] - XTA [pin 3] - XTB [pin 4] ### U3 — [PE4259-63](https://www.flux.ai/adrian95/pe4259-63~y7n.md) - Role Details: 50 ohm 915 MHz TX/RX antenna switch controlled by ESP32/SX1262 RF control nets - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: pSemi - Part Type: Integrated Circuit - Datasheet URL: https://www.psemi.com/pdf/datasheets/pe4259ds.pdf - Role: RF Switch - Manufacturer Part Number: PE4259-63 **Pins:** - ~CTRL_OR_VDD [pin 6] - CTRL [pin 4] - GND [pin 2] - RF1 [pin 1] - RF2 [pin 3] - RFC [pin 5] ### U4 — [TLV62568DDC](https://www.flux.ai/kicad-part-library/tlv62568ddc~vt.md) - Datasheet URL: http://www.ti.com/lit/ds/symlink/tlv62568.pdf - Package or Case Code: SOT-23-6 - Role Details: 3.3V rail target ≥1A for ESP32-S3/SX1262/USB-UART peaks; final feedback values per datasheet - Role: Buck Regulator - Manufacturer Part Number: TLV62568DDC - Manufacturer Name: Texas Instruments Inc. **Pins:** - EN [pin 1] - FB [pin 6] - GND [pin 2] - PG [pin 5] - SW [pin 3] - VIN [pin 4] ### U5 — [DRV8833PWR](https://www.flux.ai/lcsc/drv8833pwr~k64t.md) - Package or Case Code: TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL - Manufacturer Part Number: DRV8833PWR - Role Details: DRV8833 for motor under 1A continuous and up to 2A peak allowance; layout to leave upgrade space - Symbol Style: parametric-v1 - JLCPCB Part Class: Extended Part - Role: Motor Driver - Manufacturer Name: TI(德州仪器) - License: https://creativecommons.org/licenses/by/4.0/ - LCSC Part Number: C544801 - Datasheet URL: https://www.lcsc.com/datasheet/C544801.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNRTlhbV1JVRVdZXjsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Part Type: Motor Driver ICs **Pins:** - AIN1 [pin 16] - AIN2 [pin 15] - AISEN [pin 3] - AOUT1 [pin 2] - AOUT2 [pin 4] - BIN1 [pin 9] - BIN2 [pin 10] - BISEN [pin 6] - BOUT1 [pin 7] - BOUT2 [pin 5] - GND [pin 13] - nFault [pin 8] - nSleep [pin 1] - VCP [pin 11] - VINT [pin 14] - VM [pin 12] ### U6 — [CP2102N-A02-GQFN28R](https://www.flux.ai/lcsc/cp2102n-a02-gqfn28r~sj5u.md) - LCSC Part Number: C964632 - Package or Case Code: QFN-28_L5.0-W5.0-P0.50-TL-EP3.3 - License: https://creativecommons.org/licenses/by/4.0/ - JLCPCB Part Class: Extended Part - Role: USB-UART Bridge - Datasheet URL: https://www.lcsc.com/datasheet/C964632.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1VeU1dTRVhaUTsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Manufacturer Name: SKYWORKS/SILICON LABS(芯科) - Symbol Style: parametric-v1 - Part Type: USB ICs - Supply Voltage: 3~3.6V - Logic Function: USB to UART - Manufacturer Part Number: CP2102N-A02-GQFN28R - Role Details: CP2102N USB-C programming interface with auto boot/reset support - Operating Temperature: -40℃~+85℃@(Ta) **Pins:** - CHR0 [pin 15] - CHR1 [pin 14] - CHREN [pin 13] - CTS [pin 23] - D- [pin 5] - D+ [pin 4] - DCD [pin 1] - DSR [pin 27] - DTR [pin 28] - EP [pin 29] - GND [pin 3] - GPIO.0/TXT [pin 19] - GPIO.1/RXT [pin 18] - GPIO.2/RS485 [pin 17] - GPIO.3/WAKEUP [pin 16] - GPIO.4 [pin 22] - GPIO.5 [pin 21] - GPIO.6 [pin 20] - NC [pin 10] - RI/CLK [pin 2] - RSTb [pin 9] - RTS [pin 24] - RXD [pin 25] - SUSPEND [pin 12] - SUSPENDb [pin 11] - TXD [pin 26] - VBUS [pin 8] - VDD [pin 6] - VREGIN [pin 7] ### Y1 — [L225S400L11L](https://www.flux.ai/adrian95/l225s400l11l~r0q.md) - Manufacturer Name: Lucki - Role: Clock - Manufacturer Part Number: L225S400L11L - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.lcsc.com/datasheet/C5261125.pdf - Role Details: 40MHz crystal for ESP32-S3; load caps per crystal/Espressif reference - Part Type: Oscillator **Pins:** - GND [pin 4] - GND [pin 2] - INPUT [pin 1] - OUTPUT [pin 3] ### Y3 — [SX2B32.000F1210F30](https://www.flux.ai/lcsc/sx2b32p000f1210f30~hw9p.md) - Manufacturer Name: SCTF(星通时频) - Role Details: 32MHz SX1262 reference crystal; verify load/tolerance against Semtech/Heltec before production - Package or Case Code: CRYSTAL-SMD_4P-L2.5-W2.0-BL - Part Type: Crystals - LCSC Part Number: C2901731 - Manufacturer Part Number: SX2B32.000F1210F30 - Role: Clock - JLCPCB Part Class: Extended Part **Pins:** - 1 [pin 1] - 3 [pin 3] - GND [pin 4] - GND [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/ricardosbotega/eximport-loralubeponto-new-pcb~vd](https://www.flux.ai/ricardosbotega/eximport-loralubeponto-new-pcb~vd).* --- *Generated from [https://www.flux.ai/ricardosbotega/eximport-loralubeponto-new-pcb~vd](https://www.flux.ai/ricardosbotega/eximport-loralubeponto-new-pcb~vd)*