Learn TINYBASIC with Real Code Examples

Tiny BASIC allows developers to write BASIC programs with extremely limited RAM and storage.

It provides only the core BASIC syntax-variables, loops, conditionals, arithmetic, and simple I/O.

Ideal for retro computing, educational purposes, and embedded systems with minimal resources.

Line-numbered programs

Variables are typically single-letter or small arrays

Conditional execution and loops

Basic math operations (+, -, *, /)

Simple input/output commands

Line-numbered statements

Variables, loops, and conditionals

PRINT and INPUT for I/O

GOTO and GOSUB for program flow

FOR/NEXT for looping

Programs are linear text, line-numbered

No separate libraries or modules

Variables stored in interpreter memory

Simple input/output mapped to hardware or terminal

Optional persistent storage for saving programs

Start the Tiny BASIC interpreter

Type line-numbered statements

Use LIST to view program

Use RUN to execute

Modify and add lines to extend functionality

Beginner: print messages and basic math

Intermediate: loops and conditional logic

Advanced: small games or interactive programs

Expert: implement small utilities on microcontrollers

Educational: interpreter or retrocomputing experiments

Much smaller and simpler than MicroPython or Mbed OS

No modern library or RTOS support

Easy for retrocomputing or ultra-low memory devices

Sequential execution only

Best for learning and experimenting on constrained hardware

1975 – Tiny BASIC created by Dennis Allison

1976–1978 – Widespread adoption on early microcomputers

1980s – Variants appear for hobbyist systems

2000s – Implementations for AVR, PIC, Arduino

2025 – Still used in retrocomputing and minimal microcontroller experiments

Line numbers - sequential program order

LET - variable assignment

PRINT - display output

INPUT - read input

GOTO/GOSUB - control program flow