ZEPTO provides a collection of ANSI‑C libraries for resource‑constrained microcontrollers, offering a static‑memory event scheduler that can replace an RTOS and a low‑footprint JSON encoder/decoder. The modules compile on any processor, use no dynamic allocation, and deliver deterministic, non‑blocking execution suitable for battery‑powered IoT, automotive, and medical devices.
Funding
$450M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Founders
Product
Problem
Embedded firmware developers often struggle to find lightweight, deterministic infrastructure libraries that fit within the strict RAM, ROM, and power budgets of resource-constrained microcontrollers. Conventional RTOS kernels and general‑purpose parsers introduce dynamic memory usage and variable execution latency, which can compromise reliability in battery‑powered or safety‑critical applications.
Solution
ZEPTO delivers a suite of portable C modules engineered for small embedded systems, providing static‑memory, low‑footprint alternatives to traditional operating system services. The core offering includes an Event Scheduler that can replace an RTOS while guaranteeing deterministic execution times and non‑blocking operation. A dedicated JSON encoder/decoder is optimized for minimal RAM and flash consumption, enabling structured data exchange on devices with severe memory limits. All components are written in standards‑compliant C, ensuring easy cross‑compilation to virtually any processor architecture. The libraries are designed for high‑reliability, battery‑operated products and can be integrated into bare‑metal, super‑loop, or existing RTOS designs without code restructuring.
Target Audience
The primary customers are embedded firmware engineers and OEMs developing battery‑powered IoT devices, automotive controllers, medical implants, and other safety‑critical or resource‑constrained hardware.
Features
- Portable ANSI‑C source code that compiles on any microcontroller with a C compiler
- Strict static memory allocation; no dynamic heap usage
- Minimal RAM and flash footprint optimized for sub‑kilobyte environments
- Deterministic, fast execution with bounded worst‑case timing
- Non‑blocking state‑machine architecture suitable for bare‑metal, super‑loop, or RTOS‑based designs
- Event Scheduler module that provides task scheduling, timing, and inter‑task signaling as an RTOS alternative
- Compact JSON encoder/decoder tailored for constrained RAM/ROM while supporting full RFC‑8259 compliance
- Battery‑friendly design with low power consumption and no blocking calls