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Tools

Interactive tools to help you build, debug, and understand electronics with tinyCore.


Power Budget Calculator

Plan your battery life. Configure sleep/wake cycles and get estimated runtime from any LiPo size — with real values from the tinyCore v2.1 datasheet.

Open Power Calculator →

Resistor Color Code

Decode and encode resistor color bands interactively. Supports 4-band and 5-band resistors with a live visual preview.

Open Resistor Calculator →

Ohm's Law Calculator

Solve for voltage, current, resistance, or power with a live animated circuit diagram showing electrons flowing in real time.

Open Ohm’s Law →

Serial Monitor

Connect your tinyCore via USB and read serial output directly in the browser. Includes a live plotter for graphing sensor data.

Open Serial Monitor →

Binary Flasher

Upload your own compiled .bin files and flash directly to any ESP32 device — no software install required, right from the browser.

Open Binary Flasher →


The tinyCore v2.1 manages power from USB, LiPo, and 3.3V regulation through a carefully designed power tree. Understanding this helps you plan power budgets accurately.

tinyCore v2.1 Power Tree Diagram

All tools run entirely in your browser — no data is sent to any server.