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PODCAST · technology

UNWIRED

by Joshua Wang

The UNWIRED podcast is a hands-on podcast that teaches people to think past what meets the eye. We explore what is really happening underneath, talking about every component and how it works while encouraging the creation of listeners' very own projects in the process. This podcast is created and ran by Joshua Wang, a passionate high-school student who aims to be a leader and role model for the future. Thanks for listening!!

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Episodes

  1. AI & Energy: Part 2

    This is the second part of AI & Energy.

  2. AI Assistants & Interfaces: Part 2

    This is the second part of AI Assistants & Interfaces!

  3. AI + Robotics: Part 2

    This is the second part of AI + Robotics.

  4. Edge AI: Smart at the Source: Part 2

    This is the second part of Edge AI: Smart at the Source.

  5. Sensors for Perception: Part 2

    This is the second part of Sensors for Perception.

  6. Training an AI: Electronics at Work: Part 2

    This is the second part of Training an AI: Electronics at Work.

  7. Memory & Models: Part 2

    This is the second part of Memory & Models.

  8. Analog AI & Neuromorphic Computing: Part 2

    This is the second part of Analog AI & Neuromorphic Computing.

  9. The Rise of the AI Chip: Part 2

    This is the second part of The Rise of the AI Chip.

  10. Neural Networks in Silicon: Part 2

    This is a part 2 episode of Neural Networks in Silicon.

  11. The Future of AI Hardware!

    Optical computing, quantum accelerators, 3D chip stacking. Smarter sensors, self-improving chips. Can machines ever become hardware-aware?

  12. AI in Healthcare Devices!

    EKG wearables, smart stethoscopes, diagnostic tools. FDA-cleared algorithms in portable electronics. How do sensors + AI change medicine?

  13. AI & Energy!

    Efficiency vs scale: how green is AI? Specialized chips for low-power learning. Powering the future of local AI.

  14. AI Assistants & Interfaces!

    Microphones, wake words, real-time NLP. Inside Alexa, Siri, and Google Assistant. How do chips handle conversation?

  15. AI + Robotics!

    Control systems, real-time feedback, actuator loops. Vision + movement + decision. Warehouse bots, prosthetics, quadrupeds.

  16. Edge AI: Smart at the Source!

    TinyML, Arduino AI, on-chip inference. Power limits, latency, offline capability. Examples: wearables, drones, smart toys.

  17. Sensors for Perception!

    Vision (CMOS), Audio (MEMS mics), Touch (haptics). How do sensors feed raw signals to AI systems? Edge AI in cameras, doorbells, phones.

  18. Training an AI: Electronics at Work!

    Power-hungry GPUs, cooling, racks. How does math turns into signals? Inside a data center for AI training.

  19. Memory & Models!

    DRAM, SRAM, Flash in training & inference. Why do memory bottlenecks matter? How are models are stored, moved, and compressed?

  20. Analog AI & Neuromorphic Computing!

    Chips that mimic the brain (Loihi, TrueNorth). Spiking neurons, synaptic weight in circuits. Memristors and other brain-inspired tech

  21. The Rise of the AI Chip!

    NVIDIA, Google TPU, Intel, Apple Neural Engine. What's inside a dedicated AI accelerator? The tradeoffs of power, speed, precision.

  22. Neural Networks in Silicon!

    How do CPUs, GPUs, TPUs, and NPUs handle AI workloads? Logic gates to matrix multiplication. Why does AI needs different hardware.

  23. The Future of Sensors!

    What happens when sensors become thinking materials? We close the season with a look into emerging tech, neural sensors, quantum detectors, stretchable circuits, and synthetic skin, in order to imagine a future where machines don’t just sense... they feel.

  24. Sensors in Biology! - Part 2

    This is a second part of our Sensors in Biology episode. Forget silicon. Nature was the first engineer. Explore the stunning parallels between your nervous system and an embedded circuit, and learn how your own body’s sensors, pressure, heat, pain, motion, have inspired everything from…

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  25. Environmental and Remote Sensing!

    From satellites scanning the Earth to soil sensors in your backyard garden, we uncover the tools that let machines read air quality, temperature, radiation, and more across environments vast and tiny. This is sensing at scale.

  26. Capacitive & Resistive Sensing!

    Touchscreens, humidity sensors, and bendable fabrics all rely on changes in resistance or capacitance. This deep dive decodes how electrons interact with matter, and how machines detect presence, position, pressure, and more.

  27. Magnetic Sensing!

    Your phone’s compass, hard drive read-heads, even credit card readers rely on one thing: magnetic sensing. We take you inside Hall effect sensors, magnetometers, and flux gates, and explore how invisible fields shape how machines navigate and store data.

  28. Actuators!

    Sensors sense, but actuators act. Join us as we flip the script and explore the outputs: the motors, solenoids, servos, shape-memory alloys, and soft robotics that transform data into movement, force, and feedback.

  29. Chemical Sensors!

    Smell a gas leak? So can a circuit. This episode uncovers how machines detect molecules, from CO₂ and ethanol to glucose and pH, using reactive surfaces, nanostructures, and biomimicry to sniff out the invisible world of chemistry.

  30. Optical Sensing!

    Lasers, lenses, and light detectors: this episode explores how machines use photons to map, measure, and perceive. From LiDAR and fiber optics to the humble photodiode, we unravel the ways light lets electronics see what we can’t.

  31. Neural Interfaces!

    What if you could plug your brain into a machine? From EEG headsets to brain-computer interfaces, we dive into the electrifying frontier of neurotech, where signals from neurons are decoded, interpreted, and even used to control external devices.

  32. Sensors in Biology!

    Forget silicon. Nature was the first engineer. Explore the stunning similarities between your nervous system and an embedded circuit, and learn how your own body’s sensors, pressure, heat, pain, motion, have inspired everything from prosthetics to robotic limbs.

  33. How do Robots Sense the World?

    What good is a robot that can’t see, hear, or feel? We break down the sensor toolkit behind modern robotics from ultrasonic “eyes” to gyros and encoders. And we show how smart sensing turns a pile of motors into a machine that adapts and learns.

  34. The Sensor Revolution!

    Before machines could think, they had to feel. This episode kicks off Season 4 with a journey through the explosive rise of sensors: how they’ve quietly reshaped everything from your phone to your fridge, and why sensing is the key to the next wave of innovation.

  35. The Future of Signals!

    The next wave of signals won’t ride wires. We close the season with a look at the bleeding edge: optical interconnects, quantum data, neural signaling, and how future machines might communicate in ways biology already does.

  36. Signals in Sensors & Actuators!

    Signals aren’t just for communication, they’re how machines see and act too. In this episode, we show how sensor data becomes signal input, and how actuators translate signals back into motion, force, light, or sound.

  37. The Internet Electronically!

    You type a URL. A webpage appears. But underneath? It’s just signals. We follow a packet from your keyboard to the web server and back, exploring how routers, modems, and cables carry your digital world, one electron at a time.

  38. Error Detection & Correction!

    What happens when a bit gets flipped? This episode explores how systems detect and fix errors in real time using parity, checksums, and advanced codes to ensure that the message always gets through, even in a noisy world.

  39. Wired Communication: Serial vs Parallel!

    USB, HDMI, I²C, SPI. What do they all have in common? Wires. Learn how bits move through copper, how serial and parallel data flows work, and what makes one protocol better than another for your next invention.

  40. Clocks, Timing, and Synchronization!

    Even the fastest systems break down without timing. We explore how digital systems keep track of time using oscillators, PLLs, and clock trees, and why syncing up is mission-critical for everything from CPUs to satellites.

  41. Modulation & Demodulation (AM/FM/Bluetooth)!

    Say it loud and clear, but also in a form the air can carry. This episode dives into how data is encoded onto signals, from old-school AM and FM to the complex magic of Bluetooth and modern wireless protocols.

  42. How Does Wireless Work?

    Invisible waves, real-world power. We explore the physics and hardware behind wireless communication: antennas, radio waves, EM fields, and how your devices talk to each other across air, walls, and even space.

  43. Noise, Filtering & Signal Integrity!

    No signal is perfect. In the wild, noise creeps in. This episode shows you how engineers clean up messy signals using filters, shielding, and clever design to preserve the message and ditch the garbage.

  44. Sampling & Quantization!

    How do you turn a sound wave into a number? This episode takes you deep into the process of sampling, slicing up time, and quantization, rounding off values. These are the hidden steps behind every digital recording, sensor reading, and image file.

  45. Analog vs Digital!

    It's the ultimate showdown: smooth, continuous analog versus the precise, stepwise world of digital. Discover how machines convert the messy real world into clean bits and why knowing the difference matters for every circuit you’ll ever build.

  46. What Is a Signal?

    Every beep, every blink, every wireless ping — it all starts with a signal. In this foundational episode, we unpack the true nature of signals: what they are, how they carry information, and why everything from sound to Wi-Fi depends on them.

  47. Building with Microcontrollers!

    From ATtiny to ESP32, microcontrollers are the brains of modern DIY electronics. This final episode brings together everything from Season 2 and shows how to build complete, self-contained projects using microcontrollers. From choosing the right board to power management to real-world debugging...

  48. Coding for Inventors!

    A modern inventor needs to know a little code. This episode will give you an easy intro to microcontrollers and programming environments like Arduino and CircuitPython. Learn how to blink an LED, read sensor data, and make things actually think. No experience needed.

  49. Your First Product!

    This is where invention becomes innovation. What happens when you want to turn your idea into something others can use? We’ll talk about prototyping, testing, feedback, packaging, safety, and the first steps toward manufacturing. Whether you want to sell it or just keep it for fun, this episode…

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  50. Enclosures and Hardware!

    Once your circuit works, where does it live? In this episode, we talk about how to design physical enclosures for your projects using 3D printing, laser cutting, off-the-shelf boxes, and even repurposed junk. We’ll cover mounting hardware, connectors, panel design, and tips for building something...

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ABOUT THIS SHOW

The UNWIRED podcast is a hands-on podcast that teaches people to think past what meets the eye. We explore what is really happening underneath, talking about every component and how it works while encouraging the creation of listeners' very own projects in the process. This podcast is created and ran by Joshua Wang, a passionate high-school student who aims to be a leader and role model for the future. Thanks for listening!!

HOSTED BY

Joshua Wang

CATEGORIES

technology

Frequently Asked Questions

How many episodes does UNWIRED have?

UNWIRED currently has 50 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.

What is UNWIRED about?

The UNWIRED podcast is a hands-on podcast that teaches people to think past what meets the eye. We explore what is really happening underneath, talking about every component and how it works while encouraging the creation of listeners' very own projects in the process. This podcast is created and...

How often does UNWIRED release new episodes?

UNWIRED has 50 episodes. Check the episode list to see recent publication dates and frequency.

Where can I listen to UNWIRED?

You can listen to UNWIRED on PodParley by clicking any episode. We provide an embedded audio player for direct listening, and you can also subscribe via your preferred podcast app using the RSS feed.

Who hosts UNWIRED?

UNWIRED is created and hosted by Joshua Wang.
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