#embedded-systems

Why Adding Delays Didn’t Fix My UART Data Loss: Understanding Hardware Flow Control

While working with an EBYTE E22 LoRa module, I encountered an interesting problem with UART communication.

How Does a Drone Know Where It Is Pointing?

Every robot lives in two worlds at once:

Embien Technologies — Newsletter July 2026

CEO Note

My First AI HelloWorld in Embedded

It’s been years since I actually sat down and did embedded development myself. Lately I’ve been folding AI into my personal workflows, and…

Plannorium Sign vs DocuSign vs Dropbox Sign vs PandaDoc (2026 Comparison)

Choosing an e-signature platform in 2026 is no longer just about getting a signature. Whether you are building a healthcare platform, a…

Why Do We Need a Phase-Locked Loop (PLL)?

FUNDAMENTALS · CLOCK & TIMING

I²C basics with and ESP32, from a beginner

You might have heard this term being thrown around often or possibly posted on job boards but why? I²C is a very common protocol utilized…

EIREERArduino Uno Complete Guide for Beginners (2026)

Whether you’re taking your first step into electronics or planning your next embedded systems project, the Arduino Uno remains one of the…

Understanding Switch Debouncing

Mechanical switches do not transition from ON to OFF in an instant. Due to the mechanical properties of the internals like springiness of…

How Do You Make a Doorbell Ring for Someone Who Can’t Hear It?

A $10 pile of parts, an Android app, and the part of modern Android that fought me the hardest

Testing the New Arduino UNO Q: Can One Board Replace a Raspberry Pi and an ESP32?

Arduino UNO Q is the newest addition to the Arduino UNO family, released by the official Arduino team at the end of last year. This time…

Arduino vs ESP32: Which Development Board Should You Choose in 2026?

If you’re starting your journey in electronics, robotics, or IoT, choosing between Arduino and ESP32 can be confusing. This guide compares…

Retail & Embedded Barcode Scanner Pain Points Solutions

Common Pain Points with Modern Barcode scanner Systems

How to Achieve 1,000Hz Signal Integrity: Bypassing PCB Noise and 1.5%

If you have ever tried to build a high-speed motion tracking system, you already know the nightmare: sensor drift, data corruption, and…

Time to dance again: The Parrot Disco in 2026 (now with ArduPilot)

Disclaimer: First up I am not an ArduPilot wizard, I know my way around enough to be dangerous, but this process has taught me a LOT about…

Cluster Is a Verb: Turning 3 Pis Into One Very Angry Computer

One Raspberry Pi is a cute hobby. Three Raspberry Pis in a tight little rack that talk trash over gigabit is a local supercomputer with…

Hello Rust’y Pico — Part 1: Setting Up Embedded Rust

Building your first Raspberry Pi Pico application with a Debug Probe

From Names to Data: A Journey Through NDN in the World of IoT

Exploring NDN, NDN-Lite, Contiki-NG, and Cooja through hands-on experimentation

From Embedded Systems to Updateable Platforms

Many industrial systems today are still developed according to a principle that has been successful for decades: A hardware platform is…

Storing your ATTiny program in…EEPROM?

Storing your ATTiny program in…EEPROM?

Building an OTA System Changed How I Think About Engineering

A little different from my usual Medium posts.

What Actually Happens When You Call HAL_GPIO_WritePin()?

A beginner-friendly investigation into how a single STM32 HAL function travels from your application code to the GPIO hardware, revealing…

What Firmware Development Actually Takes to Build, Test, and Ship

Introduction

How to connect to simple digital modules using an ESP32

So you blinked the light and are ready to tackle on more projects? You have some sort of module that you are ready to connect but have no…

The Adventure of Zephyr: Episode 01: Setting Up Zephyr

The first piece of hardware in this story was not something I ordered. It was something I found. Digging through a drawer in the lab, I…

Beyond Test & Measurement: How Peridot Technologies Enables Innovation Across Strategic Industries

Bridging the gap between design engineering and physical realization.

What It Takes to Put a Computer Inside a Garbage Truck (and Keep It Running)

Lessons from deploying vehicle-mounted industrial computers across Danish milk-transport and waste-management fleets

LL2 | When the Watchdog Fires and Nobody Knows Why: A Lesson in ISR Priority Design

Lesson Learned series — real bugs from production automotive ECU development

Getting Started with ESP32-CAM: My First Hands-On Experience

“Why isn’t this thing connecting?”

Exploring Requirements for Physical Devices and the Internet of Things

Building software-controlled hardware devices presents some specific requirements challenges.

Bare Metal STM32 (Part 4): UART Without Libraries

In the previous part, we saw how we could blink the onboard LED by using just the registers present in the STM32 (you can check it out by…

The Complete, Practical Guide to ISO Standards in Medical Device Software Development (Pt. 3/6)

Part 3: The Software Development Lifecycle, Done Right

Top Skills Required to Become an Embedded Engineer

Embedded engineering is still one of the most stable and lucrative jobs in technology. The need for talented embedded engineers is expected…

The Adventure of Zephyr: Prologe

Mengenal Partisi di ESP32: Hal Pertama yang Wajib Dipahami Sebelum Ngulik ESP-IDF

Akhir-akhir ini saya mulai serius ngulik lebih dalam soal embedded system, khususnya ESP32. Selama ini pengalaman saya di dunia IoT lebih…

Firmware Over The Air (FOTA)

Also referred to as Firmware Over-The-Air (FOTA) or simply Over-The-Air (OTA) updates, both terms are used interchangeably throughout this…

Industrial Automation Projects: Transforming Ideas into Smart Industrial Innovations

In today’s rapidly evolving industrial landscape, automation is no longer a luxury — it’s a necessity. From intelligent manufacturing…

Building a Remote Relay Controller for EV Chargers with an ESP32 and MQTT

TLDR; How an ESP32 next to each EV charger lets us remotely reboot a frozen unit over MQTT, no site visit needed.

Building a Weather System with an ESP32-S3 Smart Display

In this project, an ESP32-S3 Smart Display is connected with multiple sensors to create a compact weather station capable of monitoring…

Why you need RTOS for your next embedded project?

If you are a tech enthusiast, a project manager, or if you’re just getting started with hardware, these terms might sound like sci-fi…

Avoiding an AI Dystopia

It feels like I can’t peruse LinkedIn without seeing posts about massive spending of data centers and the insane CAPEX investments by big…

Corporate Security Can’t Detect What They Can’t See: The Pico W Underground

Why a six-dollar microcontroller is quietly becoming one of the most interesting pieces of hardware in modern security research.

When R Stopped Meaning RISC

From hand-typed hex on a Samsung SPC-1000 to ARM assembly on an embedded Linux board — the long, slightly anticlimactic story of RISC vs…

Bare Metal STM32 (Part 3): Blinking an LED the Hard Way

In the previous 2 parts, we looked at how the linker script organizes the code and how the Reset Handler function handles shifting of the…

STM32N6 Is Not Just Another STM32: Inital impressions from My First 48 Hours

I’ve been waiting to get my hands on the STM32N6 Discovery Kit for a long time, and now that it’s finally on my desk, I’ve spent the last…

From Data Collectors to Decision Makers: Why Intelligent Sensors Are the Next Shift in Edge AI

The next evolution of IoT may not be about connecting more sensors. It may be about making sensors smart enough to decide what matters…

Bare Metal STM32 (Part 2): Reset Handler

Welcome to Part 2. We left at how the different parts of compiled code is stored in memory when the system boots up. If you did not go…

Your STM32 Just Crashed. Now What? A Beginner’s Guide to HardFault Errors

That blinking red LED is trying to tell you something.

Cyberdeck 101

Building Your Dream Cyberdeck: Beginner Tips & Lessons Learned —a collection of notes from my first proper cyberdeck build. Full tutorial…

On Phones as Edge Computer Replacements

Why the standard “edge PC + cameras + sensors + GPIO-driven actuators” robotics stack is an artifact of when it was designed, and what a…