MoonBadge
About the MoonBadge PCB
MoonBadge is an open source ESP32 PCB design by acamilo, published on GitHub. It is a 2-layer board measuring 49.5 × 147.2 mm, with 56 components from 28 distinct parts.
Its main chip is the ESP32-WROOM, from the ESP32 family. Other key parts include the XC9141, KX122-1037, AP1117-33 and CH340G. By type, the board carries 19 capacitors, 13 resistors, 6 connectors, 5 ICs, 5 diodes and 3 transistors.
It belongs with the wearables designs in this gallery.
Main components on the MoonBadge
MoonBadge bill of materials (BOM)
56 components, 28 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-WROOM | ESP32-WROOM | U1 |
| 1 | XC9141 | SOT95P280X130-5N | U2 |
| 1 | KX122-1037 | LGA16R50P4X4_200X200X100 | U3 |
| 1 | AP1117-33 | SOT-223-3_TabPin2 | U4 |
| 1 | CH340G | SOIC-16_3.9x9.9mm_P1.27mm | U5 |
| 2 | PN2222A | SOT-23 | Q1, Q3 |
| 1 | Q_NMOS_GSD | SOT-23 | Q2 |
| 1 | 52435-2471 | MOLEX_52435-2471 | X1 |
| 1 | USB_B_Micro | USB_Micro-B_Molex_47346-0001 | J2 |
| 1 | Conn_01x04 | PinHeader_1x04_P1.27mm_Vertical | J6 |
| 3 | Conn_01x02 | PinHeader_1x02_P1.27mm_Vertical | J7, J8, J9 |
| 1 | 105162-0001 | 105162-0001 | J10 |
| 1 | Battery_Cell | 12BH321P-GR | BT1 |
| 1 | G*** | outline | svg2mod |
| 5 | D_Schottky | D_SOD-123 | D1, D2, D3, D4, D5 |
| 1 | L | L_1812_4532Metric | L1 |
| 1 | 68uH | L_1812_4532Metric | L2 |
| 5 | 10uF | C_0603_1608Metric | C1, C2, C3, C5, C17 |
| 12 | 1uF | C_0603_1608Metric | C4, C6, C7, C8, C9, C10, C11, C12 +4 |
| 1 | 2.2uF | C_0603_1608Metric | C14 |
Show 8 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 220uF | CP_Elec_6.3x5.7 | C19 |
| 1 | 10KR | C_0603_1608Metric | R1 |
| 1 | DNP | C_0603_1608Metric | R2 |
| 4 | 10K | C_0603_1608Metric | R3, R5, R6, R10 |
| 1 | 2.2R | C_0603_1608Metric | R4 |
| 2 | 100k | C_0603_1608Metric | R7, R9 |
| 2 | 1k | C_0603_1608Metric | R8, R11 |
| 2 | 2.2k | C_0603_1608Metric | R12, R13 |
MoonBadge design files
The KiCad project lives in the acamilo/MoonBadge repository on GitHub; these links point at the commit this page was built from.
- Layoutmoonbadge.kicad_pcb
MoonBadge: common questions
What microcontroller does the MoonBadge use?
The MoonBadge is built around the ESP32-WROOM, from the ESP32 family.
How big is the MoonBadge PCB?
The MoonBadge measures 49.5 × 147.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MoonBadge?
56 components, from 28 distinct parts. The full bill of materials is listed on this page.
Where can I download the MoonBadge design files?
From the acamilo/MoonBadge repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the MoonBadge design in my own project?
The repository has no license, so all rights stay with acamilo. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the MoonBadge 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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