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Yevhen Kozachenko 🇺🇦
Yevhen Kozachenko 🇺🇦

Posted on • Originally published at ekwoster.dev

🧠 Tiny Yet Mighty: How TinyGo is Revolutionizing IoT and Embedded Development in 2024

#tinygo #embedprogramming #webassembly #go

🧠 Tiny Yet Mighty: How TinyGo is Revolutionizing IoT and Embedded Development in 2024

Tired of bloated embedded toolchains and complex cross-compiling rituals? There’s a new sheriff in town: TinyGo – the minimalist Go compiler that's making embedded programming fun again. And it's not just for Arduinos – learn how this lightweight beast is building WebAssembly and microcontroller firmware like a boss.

🔍 What Is TinyGo?

TinyGo is a lean and mean version of the Go programming language made specifically for:

  • Microcontrollers
  • WebAssembly (WASM)
  • Tiny footprint Linux-based devices

Built on LLVM and compatible with many Go language features, TinyGo lets you write Go code that runs on devices with as little as 16KB of RAM. Yes, seriously.

✨ Quick Features:

  • Cross compiling made easy
  • Runs on dozens of MCUs (Arduino, ESP32, STM32, RISC-V, etc.)
  • WASM support out of the box
  • Works well with existing Go tooling

⚠️ The Pain TinyGo Solves

Traditional Embedded:
  • Toolchain hell
  • Debugging nightmares
  • Inconsistent language support
  • Developer unfriendly
TinyGo:
  • Use a modern language (Go 🧡) with amazing tooling
  • Write once, compile for microcontrollers or WebAssembly

🔧 Tip: Hello World on An Arduino Uno

Let’s break TinyGo in with a basic example to flash an LED on your Arduino Uno.

Requirements:

Code: main.go 

package main

import (
    "machine"
    "time"
)

func main() {
    led := machine.LED
    led.Configure(machine.PinConfig{Mode: machine.PinOutput})

    for {
        led.High()
        time.Sleep(time.Second)
        led.Low()
        time.Sleep(time.Second)
    }
}
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Flash it: 

tinygo flash -target=arduino main.go
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That’s it. You got a running Go program on your Arduino. Beautiful.

🎯 Cross Target Compilation - WASM & Microcontrollers

Let’s say you want to reuse your logic on web — for visualization or interaction. With TinyGo, it's literally one line away:

Compile to WebAssembly: 

tinygo build -o main.wasm -target=wasm main.go
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Now you can use this .wasm in a web project. TinyGo’s WASM builds are tiny (hence the name) — under 100KB vs >500KB with Go’s default compiler!

🧪 Real Use Case: Sensor Dashboard from MCU to Browser

Let’s assume you have a microcontroller reading sensor values. Why spin up a heavy Node.js backend to crunch and visualize data?

Split your logic in a shared Go-like interface that works on both:

  • ESP32 with MicroPython-style simplicity
  • WASM side on the browser

Advanced users can even combine MQTT + WASM visualizers entirely in Go, then build JS dashboards without the JS!

Example interface for message:

type SensorData struct {
    Temperature float32 `json:"temperature"`
    Humidity    float32 `json:"humidity"`
    Timestamp   int64   `json:"timestamp"`
}
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You can reuse this struct both on:

  • Microcontroller sending data in JSON (compiled with TinyGo)
  • WASM code parsing and displaying it in browser DOM (React + TinyGo WebAssembly)

🛠️ The Compilation Magic Behind TinyGo

TinyGo compiles using LLVM under the hood, not the standard Go compiler (gc). This allows it to strip unused functions (tree-shaking), perform deep optimizations, and keep memory usage microscopic.

This is critical when working with:

  • 8-bit and 32-bit MCUs
  • Devices with limited Flash/RAM
  • High-performance browser WASM apps

⛓️ VS Rust Embedded (YES, the hot topic 🥵)

Feature TinyGo Rust + no_std
Learning Curve Low Steep
WASM Support Excellent Also Good
Community Growing Large
Ecosystem Go packages Crates (but isolated)
Tooling Easy (go mod) Complex (Cargo + X)

Rust wins on safety guarantees, no doubt, but TinyGo hits the sweet spot for microservices developers wanting to break into embedded or WASM land without mastering yet another toolchain.

🙌 Real-World Projects Built with TinyGo

  • Blues Wireless Notecard support
  • Flashing firmware via OTA with TinyGo for ESP32
  • Smartwatch UIs in WASM using TinyGo generated .wasm
  • IoT dashboards powered by shared codebase from firmware to frontend

🤯 Pro Tip: Write Go Middleware Once — Reuse as Firmware Logic + WASM Frontend Parser

Imagine writing a parser or rule-engine in Go, then reusing it on:

  • Embedded device (TinyGo compiled firmware)
  • WASM dashboard rule checking (TinyGo .wasm)
  • Backend Go server

DRY across the entire stack — embedded → browser → backend.

🔩 Conclusion: Why You Should Try TinyGo Now

TinyGo isn’t just a toy. It’s beginning to disrupt the WASM and embedded world with full stack Go. For developers already familiar with Go or coming from web dev, this is the most accessible path into:

  • Embedded 💡
  • IoT 🌐
  • Robotics 🤖
  • WASM 🧙‍♂️ wizardry

Next Steps:

  • 👉 Get Started Guide from TinyGo.org
  • 👉 Try the WASM Playground
  • 👉 Flash your first Arduino app in Go

Go small. But dream big. 🧠

#tinygo #embed-programming #golang #wasm

✅ If you need this done – we offer Research & Development Services tailored for embedded, WebAssembly, and cross-platform Go development.

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