MiniGun
About the MiniGun PCB
MiniGun is an open source ESP32 PCB design by charcole, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 111.8 × 37.5 mm, with 29 components from 19 distinct parts.
Its main chip is the ESP32-WROOM, from the ESP32 family. Other key parts include the LD1117S33TR and TLC5926IDW. By type, the board carries 13 resistors, 5 connectors, 4 ICs, 4 capacitors and 3 switches.
From the project
A mini Super Gun (JAMMA on TV)
A device for playing JAMMA compatible arcade boards on a TV using Wii Classic Controllers
Main components on the MiniGun
MiniGun bill of materials (BOM)
29 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LD1117S33TR | SOT-223 | U1 |
| 1 | ESP32-WROOM | ESP32-WROOM | U2 |
| 2 | TLC5926IDW | SOIC-24W_7.5x15.4mm_Pitch1.27mm | U3, U4 |
| 1 | JAMMA | JAMMA | J1 |
| 1 | CONN_01X06 | Pin_Header_Straight_1x06 | J2 |
| 1 | PWR_IN | BARREL_JACK | J5 |
| 1 | DC2DC | NQR010A0X4Z | J6 |
| 1 | SCART-F | SCART | J7 |
| 3 | SW_Push | SW_SPST_EVQPE1 | SW1, SW2, SW3 |
| 3 | 4.7u | C_1206_HandSoldering | C1, C2, C3 |
| 1 | 1u | C_1206_HandSoldering | C4 |
| 3 | 330 | R_1206_HandSoldering | R1, R11, R12 |
| 3 | 470 | R_1206_HandSoldering | R2, R3, R4 |
| 2 | 10K | R_1206_HandSoldering | R5, R13 |
| 1 | 1K | R_1206_HandSoldering | R6 |
| 1 | 240 | R_1206_HandSoldering | R7 |
| 1 | 500 | Potentiometer_Bourns_3296W_3-8Zoll_Inline_ScrewUp | R8 |
| 1 | 33 | R_1206_HandSoldering | R9 |
| 1 | 100 | R_1206_HandSoldering | R10 |
MiniGun design files
The KiCad project lives in the charcole/MiniGun repository on GitHub; these links point at the commit this page was built from.
- LayoutMiniGun.kicad_pcb
MiniGun: common questions
What microcontroller does the MiniGun use?
The MiniGun is built around the ESP32-WROOM, from the ESP32 family.
How big is the MiniGun PCB?
The MiniGun measures 111.8 × 37.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MiniGun?
29 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the MiniGun design files?
From the charcole/MiniGun repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the MiniGun design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.
Can I test firmware for the MiniGun 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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