1 × screen · all V1 kits
1.28″ round TFT display
Choose the 1.28-inch, 7-pin round TFT from the linked options. It connects to the separate ESP32 board below.
Ghost Gauges V1 · Build it yourself
DIY parts & links.
Choose your display to see the parts and shop links you need.
Before you order
DIY code kits are digital downloads. Electronics, displays and printed cases are bought or made separately.
Digital kits only. Hardware is bought separately.
Compare the DIY kitsYour shopping list
Check the model and selected variant before buying. Shop links open a new tab.
10-pin
1 × screen · Kit 3 only
2.1″ round TFT display
Choose the supported 2.1-inch, 10-pin round TFT. You also need the separate ESP32 board below.
Use the linked model and check the wiring diagram; screen size alone is not enough.
1 × combined module · all V1 kits
1.9″ rectangular screen with ESP32 WROOM
The 1.9-inch screen and ESP32 WROOM are already combined. You do not need an extra ESP32 board for this display.
1 × board per round screen
ESP32 WROOM development board
Use an ESP32 WROOM USB-C development board. SuperMini, C3 and C4 boards are not substitutes for this V1 build.
1 × per vehicle
ELM327 Bluetooth OBD2 adapter
Connects the gauge to the vehicle’s OBD2 data. Linked gauges share one compatible adapter. Choose one of the listings below.
1 × per vehicle
Push-button rotary encoder
Controls the gauge menus. Choose a 4- or 5-pin rotary encoder with a push-button function. Linked gauges share this control.
Wiring required · connectors optional
Wiring and optional JST-PH connectors
Use wiring suited to your build. JST-PH 2.0 mm male/female connectors make parts easier to disconnect; direct soldered connections are also possible.
Which connector quantities?
The single-screen shopping example lists 2 × 4-pin and 3 × 3-pin connectors. Check whether the seller supplies individual halves or complete male/female pairs.
Confirm quantities against your chosen display’s wiring diagram. The 7-pin round screen, 10-pin round screen, rectangular module and linked builds can need different connections.
Finish the installation
Power & mounting
Vehicle power is not a direct USB supply. Never wire the ESP32 straight to 12V or 24V. Use the regulated power setup in your build instructions.
Required for a 12/24V vehicle supply
Automotive 12/24V-to-5V converter
Step the vehicle supply down to regulated 5V using an automotive-suitable converter. Match its output connection and capacity to the kit’s wiring instructions.
Never connect the ESP32 directly to 12V or 24V. If you already have a suitable regulated 5V supply, check your build instructions before buying a second converter.
Match your vehicle
Fused wiring & fuse tap
Choose a fused power lead appropriate to the installation. A fuse tap is an optional way to connect at the fuse box; match its type to your vehicle.
Source these locally to suit your vehicle and follow the kit’s wiring instructions for the installation.
Case + mount for your chosen display
Give your gauge a home
Kit 1: source or make your own enclosure.
Kits 2 & 3: supported STL case files are included; printing is separate.
Use your own printer or a printing service. Check that the file fits your screen and mounting position before printing.
Which case files are included?
The listed files cover 1.28-inch round cases, a round case with an encoder slot, the 1.9-inch BMW E46 ashtray case, the ESP32 case and Ghost Button. Check the available case files before choosing a 2.1-inch build.
Expanding your setup
Adding another gauge?
Each extra round gauge needs its own screen, ESP32 WROOM board, wiring and enclosure. A rectangular module already contains its board.
Keep the shared parts. Linked displays use one compatible ELM327 adapter and one push-button encoder per vehicle.
Allow for the link wiring and check the power setup for the complete build. Kit 3 adds expanded multi-display support. Follow the supported layout in your kit’s manual.
See the quick build guideBefore checkout
A few useful answers
Do I need to buy everything on this page?
Buy the items for your chosen display, plus the shared adapter, encoder and wiring. Reuse suitable parts you already have. The 1.9-inch module includes its ESP32; round screens need a separate board. Your power and case choices depend on the installation.
Can I buy the parts somewhere else?
Yes. Match the exact supported board and screen, including the pin layout, to the kit’s instructions. A similar-looking display or a board with a similar name may use different hardware.
What if a seller link has changed?
Check the specification and selected variant against this list and your kit instructions. If the original item is unavailable, ask about a replacement before choosing a different board or screen.
What else should I budget for?
Allow for your code kit, the selected electronics, power components, wiring, case printing or an enclosure, and any assembly tools you need. Supplier prices, shipping and taxes vary by destination, so check your total at the shops.
Where are the wiring instructions?
Each code kit includes build instructions and wiring diagrams. The quick build guide gives you an overview before you start; use your kit’s detailed instructions for the actual wiring.
Ready to choose your software?
Compare what’s included in DIY Code Kits 1, 2 and 3.