Arduino IDE vs CS+
Arduino IDE
arduino.ccCS+
renesas.comSide by side
| Figure | Arduino IDE | CS+ |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | — |
| Plans published | 1 | 2 |
| Spec score · Embedded Development IDEs | 9.1 (#2) | 8.0 (#6) |
| Headquarters | Arduino's privacy policy gives its registered office as Via Andrea Appiani 25, Monza, Italy. | Tokyo, Japan |
| Purpose | Arduino provides software for creating projects with electronic devices that interact with the physical world. | CS+ is an integrated development environment and coding tool for developing software for Renesas MCUs. |
| Support | Arduino links to documentation, a Help Center, and a support request channel. | Renesas offers online support communities, a knowledge base, and ticket submission for technical questions or confidential information. |
Plans
In their own words
Arduino IDE
Arduino IDE is a free desktop environment for building projects with electronic devices that interact with the physical world. The software page lists version 2.3.10, with downloads for Windows, macOS, and Linux. Its editor provides autocompletion, code navigation, and a live debugger; documentation also covers debugging, the Serial Monitor, and the Serial Plotter. Arduino CLI offers a text-based environment to build, compile, and upload sketches, and manage libraries and boards. Documentation describes synchronizing sketches between IDE 2 and Arduino Cloud through a Remote Sketchbook. Arduino IDE 2.0 is open source, with source code hosted on GitHub. Listed targets include Arduino AVR, megaAVR, SAMD, SAM, Mbed OS Nano, and Mbed OS Portenta. Nightly builds preview incoming releases with updated features and bug fixes. Arduino describes its ecosystem as serving students, makers, and professional developers. The software page states that downloads are provided as is and disclaims express and implied warranties.
CS+
CS+ is Renesas’s integrated development environment for creating software for Renesas microcontrollers. The free IDE is available for development and production, while evaluation compiler packages may impose limits. CS+ for CC targets the RL78, RH850, and RX families; CS+ for CA,CX targets RL78, 78K, and V850. Its installer includes compiler packages for target products, and compatible Renesas emulators provide debugging functions. The graphical interface can generate C device-driver programs for MCU peripherals, although generation is unavailable for some MCUs. Modified or saved source files build automatically in the background, and action events can show variable values at a specified address. Smart Browser for CS+ for CC presents device information, hardware manual content, sample code, and related FAQs. CS+ can interoperate with Smart Configurator for RX, and Renesas offers a co-simulation tool linking it with MATLAB and Simulink. Current listed versions run on Windows 10 64-bit and Windows 11; 32-bit use requires CS+ IDE V8.06 or earlier. Debugging emulators are sold separately.