PCB ONLY
About the PCB ONLY
PCB ONLY is an open source ESP32 PCB design by DhaDylan, published on GitHub. It is a 2-layer board measuring 82.1 × 58.6 mm, with 33 components from 14 distinct parts.
Its main chip is the ESP32-C3, from the ESP32 family. Other key parts include the CDCLVC1103PW, USBLC6-2SC6, HMC221BE RF Sw and HMC221BE. By type, the board carries 9 ICs, 9 resistors, 6 capacitors, 4 connectors, 2 antennas and 1 crystal.
Main components on the PCB ONLY
PCB ONLY bill of materials (BOM)
33 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CDCLVC1103PW CDCLVC1103PW Clk Buf | SOP65P640X120-8N | IC1 |
| 3 | USBLC6-2SC6 | SOT95P280X145-6N | IC2, IC3, IC4 |
| 3 | ESP32-C3 | QFN32_5X5_EXP | U1, U2, U6 |
| 1 | HMC221BE RF Sw | RJ-6_ADI | U4 |
| 1 | HMC221BE | RJ-6_ADI | U5 |
| 1 | FK4000032 FK4000032 Crystal | FK4000032 | Y2 |
| 3 | USB4105-GF-A | USB4105_GCT | J1, J2, J3 |
| 1 | 694106301002 694106301002 Barrel | 694106301002_1 | J4 |
| 2 | WDP.2458.25.4.B.02 | WDP2458254B02 | ANT1, ANT2 |
| 2 | TSR 2-2433N TSR_2-2433N Buck | TSR22433N | PS1, PS2 |
| 3 | MBASQ21GAB7104MTCA01 .1uF | MBASx21x | C1, C3, C7 |
| 3 | C1608X7T1A106M080AC 10uF | CAPC1608X80N | C2, C4, C5 |
| 6 | ERJ-UP6D5101V 5.1k ERJ-UP6D5101V | ERJUP6 | R1, R2, R7, R8, R10, R11 |
| 3 | RCC04021K50FKED 1.5k RCC04021K50FKED | RCC0402_e3 | R5, R6, R9 |
PCB ONLY design files
The KiCad project lives in the DhaDylan/esp32c3-direction-finding repository on GitHub; these links point at the commit this page was built from.
- LayoutPCB ONLY/PCB ONLY.kicad_pcb
- SchematicPCB ONLY/PCB ONLY.kicad_sch
PCB ONLY: common questions
What microcontroller does the PCB ONLY use?
The PCB ONLY is built around the ESP32-C3, from the ESP32 family.
How big is the PCB ONLY?
The PCB ONLY measures 82.1 × 58.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the PCB ONLY?
33 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the PCB ONLY design files?
From the DhaDylan/esp32c3-direction-finding repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the PCB ONLY design in my own project?
The repository has no license, so all rights stay with DhaDylan. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the PCB ONLY 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.
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