Hardware & BOM

Everything needed to build one dash: the reference parts, with an indicative price and a supplier for each region. Pick where you ship to and the table re-prices.

USD $EUR €GBP £CHFPRICES INDICATIVEHW REV C

Ship to

United StatesEuropeUnited KingdomSwitzerland

Prices in USD, excl. sales tax. Panel ships from CN, 2–3 weeks.Prices in EUR, excl. VAT. Reichelt and Elecrow EU stock most parts.Prices in GBP, excl. VAT. Pimoroni carries the panel and transceiver.Prices in CHF, excl. VAT. Distrelec ships next-day within CH.

Bench kit

$66€67£59CHF 71

panel, transceiver and wire

In-car build

$107€108£94CHF 117

everything below, pod included

Build time

~3 h

soldering iron, crimper

Shipping

Worldwide

2–20 d · panel ships from CN

Core parts

The seven items below are the whole dash. Prices are indicative — what a build like this tends to cost — and the links point at the distributors, not affiliates.

Part	Supplier	USD $EUR €GBP £CHF
Elecrow CrowPanel 2.8″ESP32-WROOM · ILI9341 SPI · XPT2046 touch	AliExpressElecrowPimoroniDistrelec	$33€34£30CHF 32
NXP TJA1051T/3 breakout3.3 V CAN transceiver	MouserReicheltPimoroniDistrelec	$4€4£4CHF 5
OBD-II to DB9 cablevehicle CAN tap	MouserReicheltPimoroniDistrelec	$9€9£8CHF 10
Dupont + JST wire kitjumpers and crimps	MouserReicheltPimoroniDistrelec	$6€6£5CHF 7
USB-C 5 V supply1 A bench power	MouserReicheltPimoroniDistrelec	$7€7£6CHF 8
120 Ω terminators ×2bus termination, if needed	MouserReicheltPimoroniDistrelec	$1€1£1CHF 2
Printed bezel2.8″ panel mount	MouserReicheltPimoroniDistrelec	$6€6£5CHF 7
Subtotal		$66€67£59CHF 71

For a car install

Part	Supplier	USD $EUR €GBP £CHF
OBD-II Y-splitterkeep the port usable	MouserReicheltPimoroniDistrelec	$12€12£10CHF 13
Dashboard podA-pillar or dash-top mount	MouserReicheltPimoroniDistrelec	$18€18£16CHF 20
Inline fuse tapadd-a-circuit, 3 A	MouserReicheltPimoroniDistrelec	$6€6£5CHF 7
Panel-mount USB-Cbulkhead extension	MouserReicheltPimoroniDistrelec	$5€5£4CHF 6
Total with core		$107€108£94CHF 117

Substitutions that work

Any ESP32 + ILI9341 panel. Keep the GPIO contract from Pinout and the firmware builds unchanged. WROVER boards work too — the PSRAM is simply left unused.

SN65HVD230 instead of the TJA1051. Cheaper and widely cloned. Ground the slew-rate pin; expect more errors above 500 kbit/s.

A Western distributor instead of AliExpress. Mouser and DigiKey stock equivalent ESP32 panels — a little more money, a couple of weeks less waiting.

CAUTION

Do not fit the 120 Ω terminators unless the dash sits at a physical end of the bus. Most cars are already terminated at both ends — a third resistor drops the bus to ~40 Ω and the ECU stops talking.

Note

Prices are indicative and were not taken from a live feed — treat them as a starting point, not a quote, and always excluding tax and shipping. Found a better source, or a part that went out of stock? Open an issue.