Bwlc1a
About the Bwlc1a PCB
Bwlc1a is an open source ESP32 PCB design by teapotlaboratories, published on GitHub under the MIT license. It is a 4-layer board measuring 80.5 × 50 mm, with 155 components from 82 distinct parts.
Its main chip is the ESP32-S3-MINI-1-N4R2, from the ESP32 family. Other key parts include the USBLC6-2SC6, MCP73831T-2ATI/OT, RT9080-33GJ5, LSM6DSOTR and MAX17048G+T10. By type, the board carries 54 capacitors, 43 resistors, 13 diodes, 13 inductors, 12 ICs and 7 transistors.
It belongs with the rf & radio designs in this gallery.
From the project
Low-power Cellular GPS Tracker
Main components on the Bwlc1a
Bwlc1a bill of materials (BOM)
155 components, 82 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | USBLC6-2SC6 TECH PUBLIC | SOT-23-6 | U1 |
| 1 | MCP73831T-2ATI/OT MCP73831-2-OT Microchip Tech | SOT-23-5 | U2 |
| 1 | RT9080-33GJ5 Richtek Tech | SOT-23-5 | U3 |
| 1 | LSM6DSOTR STMicroelectronics | LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y | U4 |
| 1 | MAX17048G+T10 MAX17048G+ Analog Devices Inc./Maxim Integrated | DFN-8-1EP_2x2mm_P0.5mm_EP0.7x1.3mm | U5 |
| 1 | ESP32-S3-MINI-1-N4R2 ESP32-S3-MINI-1 Espressif Systems | ESP32-S3-MINI-1 | U6 |
| 1 | L76L-M33 Quectel | L76L-M33 | U7 |
| 1 | SY8089A1AAC Silergy Corp | SOT-23-5 | U8 |
| 1 | A7670C-MASL A7670C SIMCom Wireless Solutions | LGA-124_L24.0-W24.0-P1.0-A7670C-LASS | U9 |
| 1 | TPS7A0328DBVR Texas Instruments | SOT-23-5 | U10 |
| 1 | TXB0106PWR Texas Instruments | TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL | U11 |
| 1 | TPS7A0333DBVR Texas Instruments | SOT-23-5 | U12 |
| 1 | PMV32UP TECH PUBLIC | SOT-23 | Q2 |
| 2 | S8050 Guangdong Hottech | SOT-23 | Q3, Q4 |
| 2 | S8050 PMBT3904 Guangdong Hottech | SOT-23 | Q5, Q6 |
| 1 | DMG1012UW-7 DMG1012UW Diodes Incorporated | SOT-323_SC-70 | Q7 |
| 1 | AO3407A Alpha & Omega Semicon | SOT-23 | Q8 |
| 1 | Q13FC1350000400 32.768 kHz Seiko Epson | Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | TYPE-C-31-M-12 USB_C_Receptacle_USB2.0 Korean Hroparts Elec | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | S2B-PH-SM4-TB(LF)(SN) JST | JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J2 |
Show 62 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SMN-304 XUNPU | SIM-SMD_SMN-304 | J4 |
| 2 | BWIPX-1-001E BAT WIRELESS | BWIPX-1-001E | J5, J7 |
| 1 | SM04B-SRSS-TB(LF)(SN) JST | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J6 |
| 1 | NN03-320 Ignion | NN03-320 | E1 |
| 1 | NN03-310 Ignion | NN03-310 | E2 |
| 1 | SMD0805P075TF RUILON(Shenzhen Ruilongyuan Elec) | Fuse_0805_2012Metric | F1 |
| 1 | SolderJumper_3_Bridged12 | SolderJumper-3_P1.3mm_Bridged2Bar12_RoundedPad1.0x1.5mm | JP1 |
| 2 | KMR233GLFG C&K | SW-SMD_L3.9-W3.0-P4.45 | SW1, SW2 |
| 1 | E6C0603SEAC1UDA EKINGLUX | LED_0603_1608Metric | D1 |
| 6 | ESD5651N Leiditech | D_SOD-882 | D2, D3, D6, D8, D10, D11 |
| 2 | ESDA6V1W5-TP ESDA6V1W5 TECH PUBLIC | SOT-353_SC-70-5 | D4, D9 |
| 2 | ESDBW5V0A1 Leiditech | D_SOD-882 | D5, D7 |
| 1 | LTST-C191KGKT Lite-On | LED_0603_1608Metric | D12 |
| 1 | LTST-C191KRKT Lite-On | LED_0603_1608Metric | D13 |
| 1 | BLM21PG300SN1D Murata Electronics | L_0805_2012Metric | FB1 |
| 1 | MMZ1608B601CTAH0 TDK | L_0603_1608Metric | FB2 |
| 1 | GJM1555C1HR40WB01D 0p4 Murata Electronics | L_0402_1005Metric | FB3 |
| 1 | LQW18AN11NG80D 11n Murata Electronics | L_0603_1608Metric | FB4 |
| 1 | 0402WGJ0000TCE 0 UNI-ROYAL(Uniroyal Elec) | L_0402_1005Metric | FB5 |
| 1 | 0603WAF0000T5E 0 UNI-ROYAL(Uniroyal Elec) | L_0603_1608Metric | FB6 |
| 1 | LQW18AN10NG80 10n Murata Electronics | L_0603_1608Metric | L1 |
| 1 | LQW18AN9N5G80D 9n5 Murata Electronics | L_0603_1608Metric | L2 |
| 1 | LQW15AN6N1B80D 6n1 Murata Electronics | L_0402_1005Metric | L3 |
| 1 | LQW15AN3N0G80D 3n Murata Electronics | L_0402_1005Metric | L4 |
| 1 | LQW18AN4N3G80D 4n3 Murata Electronics | L_0603_1608Metric | L5 |
| 1 | LQW15AN1N3C80D 1n3 Murata Electronics | L_0402_1005Metric | L6 |
| 1 | LVS303015-2R2M-N 2u2 Chilisin Elec | IND-SMD_L3.0-W3.0_LVS303015H-2R2M-N | L7 |
| 1 | CC0402KRX7R9BB103 10n YAGEO | C_0402_1005Metric | C1 |
| 9 | CL05B104KO5NNNC 100n Samsung Electro-Mechanics | C_0402_1005Metric | C2, C6, C8, C9, C12, C15, C25, C29 +1 |
| 9 | CL10A106KP8NNNC 10u Samsung Electro-Mechanics | C_0603_1608Metric | C3, C4, C5, C7, C11, C20, C21, C22 +1 |
| 1 | CL10A226MP8NUNE 22u Samsung Electro-Mechanics | C_0603_1608Metric | C10 |
| 2 | CC0603JRNPO9BN330 33p YAGEO | C_0603_1608Metric | C13, C14 |
| 2 | 0402CG120J500NT 12p FH (Guangdong Fenghua Advanced Tech) | C_0402_1005Metric | C16, C17 |
| 2 | T520B337M006ATE040 330u KEMET | CP_EIA-3528-21_Kemet-B | C18, C19 |
| 4 | CL10B105KO8NNNC 1u Samsung Electro-Mechanics | C_0603_1608Metric | C24, C26, C44, C45 |
| 1 | CC0402JRNPO9BN100 10p YAGEO | C_0402_1005Metric | C27 |
| 2 | 0402CG330J500NT 33p FH (Guangdong Fenghua Advanced Tech) | C_0402_1005Metric | C28, C47 |
| 1 | CL05A105KP5NNNC 1u Samsung Electro-Mechanics | C_0402_1005Metric | C30 |
| 2 | GRM21BR60J107ME15L 100u Murata Electronics | C_0805_2012Metric | C31, C32 |
| 2 | CL05B102KB5NNNC 1n Samsung Electro-Mechanics | C_0402_1005Metric | C33, C37 |
| 1 | CC0402KRX7R9BB471 470p YAGEO | C_0402_1005Metric | C34 |
| 4 | DNP | C_0402_1005Metric | C35, C36, C48, C49 |
| 5 | CL10B104KO8NNNC 100n Samsung Electro-Mechanics | C_0603_1608Metric | C39, C40, C41, C46, C55 |
| 1 | CL10A475KP8NNNC 4u7 Samsung Electro-Mechanics | C_0603_1608Metric | C43 |
| 1 | GJM1555C1H470FB01D 47p Murata Electronics | C_0402_1005Metric | C50 |
| 1 | GJM1555C1H1R4WB01D 1p4 Murata Electronics | C_0402_1005Metric | C51 |
| 1 | GJM1555C1H1R2WB01D 1p2 Murata Electronics | C_0402_1005Metric | C52 |
| 1 | GJM1555C1H2R0WB01D 2p Murata Electronics | C_0402_1005Metric | C53 |
| 1 | GRM188R60J476ME15D 47u Murata Electronics | C_0603_1608Metric | C56 |
| 3 | 0402WGF5101TCE 5k1 UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R1, R2, R19 |
| 1 | RC0402FR-072KL 2k YAGEO | R_0402_1005Metric | R3 |
| 3 | 0402WGJ0102TCE 1k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R4, R41, R42 |
| 8 | 0402WGJ0000TCE 0 UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R5, R24, R25, R28, R34, R35, R36, R37 |
| 7 | 0402WGF1002TCE 10k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R7, R8, R9, R10, R11, R15, R33 |
| 2 | 0603WAF1004T5E 1M UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R12, R13 |
| 8 | 0402WGJ0472TCE 4k7 UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R14, R18, R22, R23, R26, R27, R29, R31 |
| 4 | 0402WGF220JTCE 22 UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R16, R17, R20, R21 |
| 2 | 0402WGF4702TCE 47k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R30, R32 |
| 1 | 0603WAF0000T5E 0 UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R38 |
| 2 | DNP | R_0402_1005Metric | R39, R40 |
| 1 | 0603WAF1203T5E 120k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R43 |
| 1 | 0603WAF2002T5E 20k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R44 |
Bwlc1a design files
The KiCad project lives in the teapotlaboratories/bwlc1a repository on GitHub; these links point at the commit this page was built from.
Bwlc1a: common questions
What microcontroller does the Bwlc1a use?
The Bwlc1a is built around the ESP32-S3-MINI-1-N4R2, from the ESP32 family.
How big is the Bwlc1a PCB?
The Bwlc1a measures 80.5 × 50 mm, has 4 copper layers and is 1.526 mm thick.
How many components are on the Bwlc1a?
155 components, from 82 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Bwlc1a design files?
From the teapotlaboratories/bwlc1a repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Bwlc1a design in my own project?
Yes, under the terms of its MIT license, which teapotlaboratories chose for the repository.
Can I test firmware for the Bwlc1a without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
Similar boards
ESP32Open Book Abridged Edition
joeycastillo
85 × 115 mm65 parts2LCC-BY-SA-4.08.1k
ESP32Badge
atopile
56.3 × 39 mm239 parts4LMIT4.0k
ESP32Esp32 minimal
36.2 × 26.8 mm20 parts2LMIT4.0k
ESP32Racer
StuckAtPrototype
36 × 50.2 mm70 parts4LApache-2.03.8k
ESP32Controller
29 × 74 mm58 parts4LApache-2.03.8k
ESP32Bitaxe
skot
56.5 × 99.8 mm86 parts4LCERN-OHL-S-2.01.4k