API Documentation

Generate 800×480 BMP images for E-Ink displays showing F1 race schedules in 1bit, B/W/R, or Spectra 6 mode.

800×480 BMP 1bit / B/W/R / B/W/R/Y / Spectra 6 E-Ink REST API
GET /calendar.bmp

Generates F1 calendar as a BMP image (800×480) for 1bit, 4-bit B/W/R, 4-bit B/W/R/Y, and Spectra 6 E-Ink displays.

Parameters

Parameter Type Description
lang string Language code for calendar text
Values: cs, de, en, es, fr, it, ja, nl, pl, pt-BR, sk, tr, zh-CN (default: en)
year integer Season year for specific race
optional — e.g. 2026
round integer Round number (1-24) for specific race
optional — e.g. 5
tz string Timezone for schedule times (IANA format)
optional — e.g. America/New_York, Europe/Prague
display string Output mode for 1bit, B/W/R, B/W/R/Y, or Spectra 6 displays
Values: 1bit, bwr, bwry, spectra6 (default: 1bit)
weather boolean Enable or disable the weather overlay
Values: true, false
weather_type string Which weather data variant to render
Values: race_day, current

Response

Content-Type image/bmp
Dimensions 800×480
Color depth 1bit / 4-bit B/W/R / 4-bit B/W/R/Y / Spectra 6
Cache 1 hour

Code Examples

# Download next race calendar
curl -o calendar.bmp "https://f1.rhiz3k.freeddns.org/calendar.bmp"

# With Czech language and timezone
curl -o calendar.bmp "https://f1.rhiz3k.freeddns.org/calendar.bmp?lang=cs&tz=Europe/Prague"

# Specific race (year and round)
curl -o calendar.bmp "https://f1.rhiz3k.freeddns.org/calendar.bmp?year=2025&round=5"

# B/W/R/Y output for four-color E-Ink
curl -o calendar.bmp "https://f1.rhiz3k.freeddns.org/calendar.bmp?display=bwry"
import httpx

async def get_f1_calendar(lang: str = "en", tz: str = "Europe/Prague"):
    """Download F1 calendar as BMP image."""
    async with httpx.AsyncClient() as client:
        response = await client.get(
            "https://f1.rhiz3k.freeddns.org/calendar.bmp",
            params={"lang": lang, "tz": tz}
        )
        response.raise_for_status()

        with open("calendar.bmp", "wb") as f:
            f.write(response.content)

        print("Calendar saved as calendar.bmp")

# Usage
import asyncio
asyncio.run(get_f1_calendar(lang="cs"))
// Fetch and display calendar
async function loadF1Calendar(lang = 'en', tz = 'Europe/Prague') {
    const url = new URL('https://f1.rhiz3k.freeddns.org/calendar.bmp');
    url.searchParams.set('lang', lang);
    url.searchParams.set('tz', tz);

    const response = await fetch(url);
    const blob = await response.blob();

    // Display in img element
    const img = document.getElementById('calendar');
    img.src = URL.createObjectURL(blob);
}

// Download as file
async function downloadCalendar() {
    const response = await fetch('/calendar.bmp?lang=cs');
    const blob = await response.blob();

    const link = document.createElement('a');
    link.href = URL.createObjectURL(blob);
    link.download = 'f1-calendar.bmp';
    link.click();
}

E-Ink Display Usage

Fetch /calendar.bmp and display directly on your E-Ink display. Recommended refresh interval: every 1-6 hours. Compatible with any 800×480 E-Ink display (e.g., Waveshare 7.5", LaskaKit).

For LaskaKit / zivyobraz.eu:

  1. 1 In zivyobraz.eu select content source: URL with image
  2. 2 Paste URL: https://f1.rhiz3k.freeddns.org/calendar.bmp?lang=cs&tz=Europe/Prague
  3. 3 Set refresh interval to 1-6 hours
GET /teams.bmp

Generate a BMP image showing all F1 teams with their drivers, photos, and championship points in 1bit, B/W/R, B/W/R/Y, or Spectra 6 output modes.

Parameters

Parameter Type Description
lang string Language code for calendar text
Values: cs, de, en, es, fr, it, ja, nl, pl, pt-BR, sk, tr, zh-CN (default: en)
year integer Season year for team data
optional — e.g. 2026
display string Display output mode
Values: 1bit, bwr, bwry, spectra6 (default: 1bit)

Response

Content-Type image/bmp
Dimensions 800×480
Color depth 1-bit / 4-bit / Spectra 6
Cache no-store

Other Endpoints

GET /api/teams/{year}

Get all teams with drivers and points for a season (JSON)

GET /api/standings/leader

Get current championship leaders (driver and constructor)

GET /api/races/{year}

List of all races for a given season

GET /api/race/{year}/{round}

Detailed race information including schedule

GET /api/stats

Request statistics (last hour and 24h counts)

GET /health

Service health check

GET /api

JSON API — API documentation in JSON format