# RAK3312 LoRaWAN Carrier ## Description Carrier board for the RAK3312 ESP32-S3/SX1262 LoRaWAN module with USB-C 5 V input, 1 A 3.3 V rail, SEN66 sensor connector, RGB status LED, and reset control. ## Project Details - **Owner:** simonkemper - **Created:** 6/27/2026 - **Last Updated:** 6/27/2026 - **Visibility:** Public ## Key Components ### D1 — [USBLC6-2SC6](https://www.flux.ai/lcsc/usblc6-2sc6~2e9x.md) - Datasheet URL: https://www.lcsc.com/datasheet/C2687116.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNRTlhdUVdURFlXXzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - LCSC Part Number: C2687116 - Breakdown Voltage: 6V - Operating Temperature: -55°C ~ 125°C (TJ) - Power: 150W - Symbol Style: parametric-v1 - Peak Pulse Current: 5A - Role Details: Low-capacitance USB D+/D- TVS array near USB-C connector - Manufacturer Name: UMW(友台半导体) - Manufacturer Part Number: USBLC6-2SC6 - Role: ESD Protection - Package or Case Code: SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL - Part Type: ESD Protection Devices - JLCPCB Part Class: Extended Part - Maximum Clamping Voltage: 17V **Pins:** - GND [pin 2] - I/O1 [pin 1] - I/O1 [pin 6] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### D2 — [150505M173300](https://www.flux.ai/adrian95/150505m173300~yhl.md) - Package or Case Code: 150505M173300 - Part Type: LED - Role: Status Indicator - Datasheet URL: https://www.we-online.com/katalog/datasheet/150505M173300.pdf - Manufacturer Name: Wurth Elektronik - Manufacturer Part Number: 150505M173300 - Role Details: Discrete RGB status LED channels driven through resistors - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A_B [pin 2] - A_G [pin 6] - A_R [pin 4] - K_B [pin 1] - K_G [pin 5] - K_R [pin 3] ### F1 — [0805L110WR](https://www.flux.ai/adrian95/0805l110wr~h3i.md) - Datasheet URL: https://www.littelfuse.com/media?resourcetype=datasheets&itemid=3b1fa5dc-24aa-4363-b543-edb057c2fffa&filename=littelfuse_ptc_0805l_datasheet.pdf - Manufacturer Part Number: 0805L110WR - Manufacturer Name: Littelfuse Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Fuse - Role Details: 1.1A hold PPTC for USB-C 5V input protection - Role: Protection **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [USB4520-03-0-A](https://www.flux.ai/adrian95/usb4520-03-0-a~ufd.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Part Number: USB4520-03-0-A - Manufacturer Name: GCT - Symbol Style: parametric-v1 - Role Details: USB-C sink power input and USB data to RAK3312 - Datasheet URL: https://gct.co/files/specs/usb4520-spec.pdf - Role: USB-C Connector **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND_A [pin A1] - GND_A [pin B12] - GND_B [pin B1] - GND_B [pin A12] - MH1 [pin S1] - MH2 [pin S4] - MH3 [pin S3] - MH4 [pin S2] - SBU1 [pin A8] - SBU2 [pin B8] - VBUS_A [pin A4] - VBUS_A [pin B9] - VBUS_B [pin B4] - VBUS_B [pin A9] ### J2 — [BM06B-GHS-TBT(LF)(SN)](https://www.flux.ai/lcsc/bm06b-ghs-tbtlfsn~a4mr.md) - Role Details: SEN66 VDD/GND/I2C connector; 3.3V only - Manufacturer Part Number: BM06B-GHS-TBT(LF)(SN) - Manufacturer Name: JST - JLCPCB Part Class: Extended Part - Datasheet URL: https://lcsc.com/product-detail/Connectors_JST-Sales-America_BM06B-GHS-TBT-LF-SN-N_JST-Sales-America-BM06B-GHS-TBT-LF-SN-N_C189892.html - Part Type: Wire To Board / Wire To Wire Connector - Role: Sensor Connector - LCSC Part Number: C189892 - Package or Case Code: CONN-SMD_6P-P1.25_BM06B-GHS-TBT-LF-SN-N - Product Info Url: https://lcsc.com/product-detail/Connectors_JST-Sales-America_BM06B-GHS-TBT-LF-SN-N_JST-Sales-America-BM06B-GHS-TBT-LF-SN-N_C189892.html **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] ### SW1 — [TS-1088-AR02016](https://www.flux.ai/lcsc/ts-1088-ar02016~e3n1.md) - Manufacturer Name: XUNPU(讯普) - Role Details: Momentary switch pulls module reset low - Manufacturer Part Number: TS-1088-AR02016 - Product Info Url: https://lcsc.com/product-detail/Tactile-Switches_XUNPU-TS-1088-AR02016_C720477.html - Package or Case Code: SW-SMD_L3.9-W3.0-P4.45 - Part Type: Tactile Switches - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302330_XUNPU-TS-1088-AR02016_C720477.pdf - LCSC Part Number: C720477 - Role: Reset Button **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW2 — [TS-1088-AR02016](https://www.flux.ai/lcsc/ts-1088-ar02016~e3n1.md) - LCSC Part Number: C720477 - Package or Case Code: SW-SMD_L3.9-W3.0-P4.45 - Part Type: Tactile Switches - Product Info Url: https://lcsc.com/product-detail/Tactile-Switches_XUNPU-TS-1088-AR02016_C720477.html - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302330_XUNPU-TS-1088-AR02016_C720477.pdf - Role: Pull Up / Down - Manufacturer Part Number: TS-1088-AR02016 - Role Details: BOOT/GPIO0 momentary button pulls boot pin low for firmware download mode - Manufacturer Name: XUNPU(讯普) **Pins:** - 1 [pin 1] - 2 [pin 2] ### U1 — [RAK3112](https://www.flux.ai/adrian95/rak3112~0r9.md) - Role: MCU/RF Module - Integrated Circuit Type: RF Device - Datasheet URL: https://docs.rakwireless.com/product-categories/wisduo/rak3112-module/datasheet/ - Manufacturer Name: Shenzhen RAKwireless Technology Co Ltd - Manufacturer Part Number: RAK3112 - Part Type: Module - Role Details: Provisional stand-in for RAK3312 ESP32-S3/SX1262 module; verify before manufacture **Pins:** - GND [pin 38] - GND_1 [pin 14] - GND_2 [pin 16] - GND_3 [pin 22] - GND_4 [pin 35] - GND_5 [pin 36] - GND_6 [pin 42] - GPIO0_/_BOOT [pin 24] - GPIO1 [pin 26] - GPIO10_/_SPI_MISO [pin 30] - GPIO11_/_SPI_MOSI [pin 31] - GPIO12_/_SPI_CS [pin 32] - GPIO13_/_SPI_SCK [pin 33] - GPIO14_/_AIN1 [pin 34] - GPIO17_/_I2C2_SDA [pin 40] - GPIO18_/_I2C2_SCL [pin 39] - GPIO2 [pin 27] - GPIO21_/_AIN0 [pin 41] - GPIO33_/_NC [pin 4] - GPIO34_/_NC [pin 5] - GPIO35_/_NC [pin 8] - GPIO36_/_NC [pin 9] - GPIO37_/_NC [pin 10] - GPIO38 [pin 11] - GPIO39 [pin 12] - GPIO4_/_NC [pin 29] - GPIO40_/_I2C1_SCL [pin 13] - GPIO41 [pin 18] - GPIO42 [pin 19] - GPIO43_/_UART1_TX [pin 7] - GPIO44_/_UART0_RX [pin 6] - GPIO45 [pin 23] - GPIO46 [pin 25] - GPIO9_/_I2C1_SDA [pin 28] - NC_1 [pin 1] - NC_2 [pin 43] - NC_3 [pin 44] - RESET [pin 17] - RF_LORA [pin 37] - RF_WIFI [pin 15] - USB_D- [pin 2] - USB_D+ [pin 3] - VDD_1 [pin 20] - VDD_2 [pin 21] ### U2 — [TLV62568DBV](https://www.flux.ai/kicad-part-library/tlv62568dbv~wuy.md) - Role: Voltage Regulator - Role Details: 3.3V buck rail sized for 1A peak system load - Package or Case Code: SOT-23-5 - Datasheet URL: http://www.ti.com/lit/ds/symlink/tlv62568.pdf - Manufacturer Name: Texas Instruments Inc. - Manufacturer Part Number: TLV62568DBV **Pins:** - EN [pin 1] - FB [pin 5] - GND [pin 2] - SW [pin 3] - VIN [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/simonkemper/rak3312-lorawan-carrier~dj](https://www.flux.ai/simonkemper/rak3312-lorawan-carrier~dj).* --- *Generated from [https://www.flux.ai/simonkemper/rak3312-lorawan-carrier~dj](https://www.flux.ai/simonkemper/rak3312-lorawan-carrier~dj)*