Contour Map Creator 0.402improvement ideas
Sampling
North West corner
Latitude: Longitude:
South East corner
Latitude: Longitude:
Sampling Poinst:
N-S axis: step size: W-E axis: step size:
Plot Options
  Units:
Rounding for legend (decimal places):  
Save/Load Cookie
Other Options

Instructions

Go to the desired location in the map, set two markers by clicking the map to define a rectangle (or enter coordinates manually). Click the button [get data]. Optionally you can change the number of elevation samples you want in each direction, the more the better (max 400). You can also change the number of contours or set custom contour values. You can save some data in cookies, however there is a limit. Use the manual saving text areas below alternatively.

This service comes without any warranty whatsoever, including but not limited to functioning or correctness.

Resources: This service uses ArcGIS Map by Esri, the OpenStreetMap, Geocoding by Nominatim, Mapzen, Leaflet, jQuery and the CONREC contouring algorithm by Paul Bourke and Jason Davies.

Created by Christoph Hofstetter (christophhofstetter (at) gmail.com) 2013-2025

Visit my other projects at urgr8.ch and Living in Natural Harmony.

Elevation Data

min:
max:

Save Data


Copy data and save somewhere

Load Data


Paste data back here and click button below

Save Contour Map as an SVG file

If you want to have the contour maps as an individual layer (e.g. to create overlays) you can copy the code underneath the image below and save it as an svg file. Please note, as for now, the drawing below is square and you may want to stretch it to cover the actual area in a map.

Download SVG file
Download KML file

Version History

Version Modification Date
0.402 - fixed elevation 0 issue for KML export 17.06.2025
0.401 - extended search engine to include whole addresses 16.06.2025
0.400 - updated version with leaflet and alternative maps
- added scale
- improved search for cities
04.06.2025
0.314 - fixing issue with svg file (not opening) 06.10.2019
0.313 - fixing issue with kml file (google earth import) 29.07.2019
0.312 - fixing issue with https connections 21.07.2019
0.311 - added download link for KML file 27.01.2019
0.310 - fix for google map API 12.10.2018
0.309 - added download link for SVG file 01.04.2017
0.308b - resolved an issue with get data 21.02.2017
0.308 - quick fix after malfunction 03.11.2013
0.307 - corrected line scramble issue
- added rounding option
18.09.2013
0.306 - added choice to select units (m or ft)
- added fullscreen option
09.09.2013
0.305 - added saving as svg 08.09.2013
0.304 - added searching
- modified layout
20.08.2013
0.303 - added plotting of sample points 19.08.2013
0.302 - added saving in cookie 19.08.2013
0.301 - added feature request link
- added interval mode for contours added interval mode for contours
- added manual map export/import
18.08.2013


R4 Sdhc 2015 Dual Core Firmware May 2026

The R4 SDHC 2015 Dual Core is a relic of a simpler flashcart era, but with the right firmware, it remains a fantastic device for playing NDS backups and homebrew on original DS hardware. The key takeaways:

If you’ve been wrestling with “r4 sdhc 2015 dual core firmware” downloads that fail, follow this guide step by step. With patience and the right files, your DS will be playing every classic – from Chrono Trigger to The World Ends with You – in no time.

Have a working setup? Share your kernel version in the comments below to help other users who are still searching.


Disclaimer: Flashcarts may be used to play unauthorized game copies. This guide is for educational purposes and assumes you own legal backups of your games. Check your local laws before using such devices.

R4 SDHC 2015 Dual Core firmware (also known as the "kernel") is the

essential software required to boot the flashcard and access its menu system

. For the 2015 edition, the correct official firmware version is typically

or newer, depending on the specific manufacturer site (often r4isdhc.com r4i-sdhc.com Core Features Dual-Core Technology

: Includes two processing chips that allow for faster file loading, improved menu navigation, and better compatibility with homebrew applications. Real-Time Save (RTS)

: Allows players to save their game progress at any point, even in games that do not natively support frequent saving. SDHC Support : Compatible with MicroSDHC cards up to

, providing significant storage for games, music, and movies. Multimedia Capabilities r4 sdhc 2015 dual core firmware

: Built-in Moonshell support turns the console into a media player for DPG videos, MP3 music, and TXT e-books. Cheat Support

: Integrates an "Action Replay" style cheat engine, enabling user-added cheat codes for various titles. Installation & Setup

To set up the firmware, you must format your MicroSD card to

The R4 SDHC 2015 Dual Core is a popular flashcart commonly used to run homebrew and backups on Nintendo DS, DSi, and 3DS systems

. Setting it up involves choosing between the official "Timebomb" kernel or custom firmware like YSMenu to ensure long-term usability. Firmware Options Official Kernel (r4isdhc.com)

: The standard firmware for this card often includes a "timebomb" that prevents it from booting after a certain date (often 5 years after the card's release year). You can download the 2015-specific kernel from the R4 3DS Dual Core 2015 Firmware YSMenu (Recommended)

: This is the most popular alternative because it bypasses the timebomb and provides better game compatibility. You can find setup guides and the latest files on the RetroGameFan Updates and Releases page on GBAtemp. Wood R4 Kernel

: Some variants of the Dual Core card can run Wood R4 firmware, which offers a cleaner interface similar to the original R4. How to Install Firmware How to Fix Error in R4 (SD/TF card error)

R4 SDHC 2015 Dual Core Firmware: A Complete Guide The R4 SDHC 2015 Dual Core

remains a popular flashcart for the Nintendo DS, DSi, and 3DS families due to its reliable game compatibility and dual-processor architecture. However, getting it to work correctly hinges entirely on having the right firmware (also known as the kernel) installed on your microSD card. Essential Firmware Overview The R4 SDHC 2015 Dual Core is a

The 2015 Dual Core edition uses a specific firmware designed to leverage its two internal processors. One processor manages game loading and applications, while the second acts as a dedicated assistant to enhance overall compatibility and firmware stability. Key Specifications Max Storage: Supports SDHC microSD cards up to 32 GB. Format: Requires FAT32 file system.

Compatibility: Works across Nintendo DS, DS Lite, DSi (up to v1.4.5), and 3DS/2DS (up to v11.17.0 and beyond).

Special Features: Built-in support for real-time cheats, soft-reset, and multi-language interfaces. How to Install the Firmware

Installing or updating your firmware is a straightforward process, but using the incorrect files will result in a "Menu?" error or a "system date" warning. Step 1: Prepare Your MicroSD Card Download The Latest R4 3DS Dual Core Firmware

The story of the R4 SDHC 2015 Dual Core is not just a story about a memory card adapter; it is a time capsule from a specific, turbulent era in video game piracy history. To understand this specific piece of hardware, you have to understand the chaos of the Nintendo DS hacking scene in the mid-2010s.

Here is the informative story of the R4 SDHC 2015 Dual Core, its rise, its technology, and its eventual disappearance.

The R4 SDHC 2015 Dual-Core is a model of flashcart produced during the mid-2010s, primarily targeting the Nintendo DS and (initially) 3DS consoles. Despite its “Dual-Core” marketing label (implying two processors for better performance or cheat functionality), it is functionally a standard Wood R4-based clone. The term “2015” refers to its year of market release.

Key finding: This cartridge does not have a “dual-core” CPU in the computing sense. The “dual-core” refers to a firmware architecture that allows it to run two different kernel interfaces (typically Wood R4 vs. YSmenu). As of 2026, this cart is considered obsolete for modern 3DS firmware (11.14+), requiring a custom firmware (CFW) on the console itself to function.

The R4 SDHC 2015 Dual Core is a popular Nintendo DS (NDS) and DSi flashcart, designed to allow users to run homebrew applications, emulators, and backup game ROMs from a microSD card. As the name suggests, the "Dual Core" model advertises improved compatibility and speed over older single-core cards, particularly for games that originally required higher processing power.

However, like most flashcarts, the R4 SDHC 2015 Dual Core is useless without its proper kernel or firmware—the operating system that loads when you boot your DS. Without the correct files, you will typically see a black screen, a "Loading..." freeze, or the dreaded "? Menu" error. If you’ve been wrestling with “r4 sdhc 2015

This article covers everything you need to know about finding, installing, updating, and troubleshooting the R4 SDHC 2015 Dual Core firmware.

Important Legal Disclaimer: This article is for educational purposes only. The R4 cartridges can be used for legitimate homebrew development and backups of games you own. We do not condone piracy. Check your local laws regarding flashcart usage.


The naming convention of R4 cards is notoriously confusing. "R4" was originally a specific brand, but over the years, it became a generic term for dozens of different manufacturers.

The 2015 Dual Core model was popular because it supported high-capacity MicroSD cards (SDHC) and featured a dual-core processor (hence the name) which promised faster menu speeds and better game compatibility at the time.

However, because these cards were often clone cards (unofficial reproductions of original R4 tech), you cannot use just any R4 firmware. If you try to load the official R4 Wood firmware or the firmware for an R4i Gold 3DS, your card will likely brick or fail to load. You need the specific kernel designed for this specific year and model.

Below is the safest method to get your cart working using YSMenu.

The community quickly realized that the R4 SDHC 2015 Dual Core is actually a clone of the Wood R4 architecture. The most stable and feature-rich firmware is a modified version of Wood R4 v1.64 (or later patches). Key benefits:

Warning: Do not download generic “R4 Wood firmware” from random sites. You need the specific build for the R4 SDHC 2015 Dual Core – otherwise, you’ll get a can’t open _ds_menu.dat error.


Before diving into firmware, let’s clarify a major point of confusion. The "Dual Core" in “R4 SDHC 2015 Dual Core” is often a marketing term. Unlike the 3DS or a smartphone, the Nintendo DS does not have two CPUs dedicated to running the cart. Instead, the term usually refers to:

The most critical fact: This card is not an original R4 (from the R4 team). It is a clone or a rebranded cart, often made by a generic manufacturer. This means you cannot use the official Wood R4 kernel or YSMenu without specific patches. Using the wrong firmware will brick the cart (make it unusable).