Does V2X2MAP run on iPhone?

Yes — as a fully native iOS app, connected to the ESP32-C5 receiver over Bluetooth LE. Available now on the App Store (€1.99), with CarPlay support.

Does the iOS app work on iPad?

Yes, the app is universal and runs on both iPhone and iPad.

How do I flash the ESP32-C5 on a Mac?

With the free V2X2MAP C5 Flasher: download the zip from the GitHub release, connect the board via USB-C, right-click-open flash.command — done in about a minute, esptool is bundled.

Can I flash the receiver without installing anything?

Yes — open v2x2map.com/flash in Chrome or Edge on any computer and click once. It uses the Web Serial API, so a desktop Chromium-based browser is required (Safari, Firefox and iPhone/iPad cannot flash).

V2X2MAP on iPhone & CarPlay

The native iOS app brings the live V2X map to your iPhone, and you flash the ESP32-C5 receiver in one click, right in your browser.

The iOS app

V2X2MAP for iOS is a fully native SwiftUI app. It connects to the ESP32-C5 receiver over Bluetooth LE and shows everything the cars and roadside units around you are broadcasting: live, decoded on the phone, no cloud involved.

V2X2MAP iOS app: signal heads for left, straight and right with distance, junction lanes coloured green — Traffic-light assistant: every direction with its own signal head

V2X2MAP iOS app: nearby traffic lights and vehicles with distance and speed — Nearby: every traffic light and car with distance and speed

V2X2MAP iOS app: red light, the lanes of the junction drawn in red — Red light: the lanes of the junction change colour with the signal

Live map
Vehicles as rotating markers with speed, turn signals and a braking ring; roadside units, hazards and signalized intersections color-coded on Apple Maps.
Hazard alerts
DENM warnings (roadworks, obstacles, …) arrive as push notifications, even while the app runs in the background.
Traffic-light assistant
Signal heads per direction with countdown, lanes coloured live, green-wave speed and a soft tone when your light turns green.
Vehicle tracks
Optionally draw the path every received car has driven.
Record & replay
Automatic .pcap session logs and manual recordings, replayable right in the app.
CarPlay & local rules
Traffic-light board and green-wave speed on the car screen. Knows the signal rules of 20+ European countries, km/h or mph.

Now on the App Store (€1.99). Beta testers can keep using the public TestFlight link.

Download on the App Store ↗ TestFlight beta ↗ Hardware you need ↓

Requires the same ESP32-C5 receiver as the Android app (firmware 2.0.9 or newer: one firmware for iPhone and Android), connected via Bluetooth LE. Without the receiver the map stays empty.

Flash the receiver

iPhones have no USB path to the board, so the ESP32-C5 firmware is flashed from a computer once. It takes about a minute:

Flash from your browser

Open the flasher in Chrome or Edge on any computer and click once. Nothing to download or install. It uses Web Serial, so it needs a desktop Chromium-based browser (Safari, Firefox and iPhone/iPad can’t flash).

1Open the web flasher

Go to v2x2map.com/flash in Chrome or Edge and plug the ESP32-C5 in via USB-C.
2Click “Connect & Flash”

Pick the serial port (e.g. “USB JTAG/serial debug unit”); flashing runs automatically in about a minute.
3Power-cycle, then start the app

Unplug the receiver from USB once and plug it back in, then open the iOS app: ITS-G5-RX connects over Bluetooth automatically.