Streaming Video and Audio over WiFi with the ESP32 In this video, we dive into a hardware hack combining several components to create my version of the TinyTV, complete with a remote control, and video streaming over Wi-Fi. We challenge the speed of image display, using different libraries and tweaking performance for optimal results. We explore Motion JPEG or MJPEG to decode and draw images quickly, and even reach about 28 frames per second. We also catered audio using 8-bit PCM data at 16kHz, and deal with syncing both video and audio streams. Finally, we add some interactive elements allowing us to change channels and control volumes, with a... 16 July 2025
Sound and (almost 😉) Vision - We're getting closer to our own Tiny 📺 In this exciting video, we're making progress on our miniature television project, having perfected sound and making strides with vision. We delve into the audio aspect, utilizing Mini esp32 S3 boards with 3-watt class D amplifiers based on the versatile max 98357ic. Fascinating features like class D amplifiers' efficiency and the easy PWM signal creation process are explored. We also play around with speakers of varying sizes, check out the temperature of the amplifier, and fiddle with animated gifs on our square display. Lots to come in future videos, including Version 2 of our boards and potential video playing methods!... 16 July 2025
Soldering up another ESP32-S3 board and a 3in1 Oscilloscope So in this video, I had a fun time experimenting with the cool gadgets sent over to me by Fury. I unwrapped this awesome USB soldering iron that looks quite promising and useful. The tiny solder stand, a Galium nitri power supply and a collection of soldering iron bits that they sent over were quite appreciable. The video took a spin when I introduced the novel 3in1 oscilloscope. This tool bundles an oscilloscope, a transistor tester and a signal generator. Well, that's a triple threat! I went on to test the soldering iron and it showed some remarkable results. The... 16 July 2025
256 Shades of Grey – Adventures in Image Processing In this enlightening video, I delve into the deep and fascinating world of image processing. Forget everything you thought you knew about pixels – they’re not squares or rectangles and they definitely aren’t discs. All pixels are, my friends, are point samples, each capturing brightness or color at a particular position. Curious to know how to manipulate them? I also unravel this mysterious tapestry, familiarizing you with the technicalities of grayscale, RGB, HSB, YUV, and a fleeting mention of CMYK. And if you think that's all, hold tight! Did you know we could apply Fourier transforms, akin to graphic equalisers... 16 July 2025
I Feel the Need – The Need for Hardware SPI… An insightful iteration on my Arduino Nano esp32 video. Despite criticism regarding the slow display update speed, a solution was found thanks to the helpful fellow, Nick. Turns out, the software SPI was the cause of the issue. A quick tweak in the code and voilà , we've got ourselves an SPI clock whizzing at 80 megahertz. Quite the speed boost for just a few lines of code alteration! 16 July 2025
Arduino Nano ESP32 - It's nice - But probably not for me. In this video, I took a deep dive into the Arduino Nano ESP32 and compared it with other available boards in the market. Despite its seemingly high cost as compared to the options on AliExpress, its overall quality, fantastic documentation, and the fact that it fits neatly into the Arduino ecosystem makes it a good buy, especially if you've already invested in the Arduino Nano and its shields. The board has a few interesting peculiarity, including the use of a NORA-W106 module, a switch mode step-down converter for power, and an RGB LED. However, I was disappointed to find out... 16 July 2025
A Lot of Hot Air - Soldering ESP32-S3 Boards In this video, I test out the new hot air rework station I just got to solder my Mini esp32 S3 boards. I dissect the hot air gun, encountering an Australian plug and a couple of interesting quirks inside the control PCB. I attempt to understand the circuit, welcome your thoughts on the build quality, and then solder on a new, hopefully safer, UK-compliant plug. Post-assembly, I apply way too much solder paste thanks to these tricky solder syringes, before setting the station to 300 degrees C for some hands-on rework. After some trials, I successfully fix some solder bridges... 16 July 2025
Lovely High Res E-Paper Display Just when we thought we'd done with our mailbag, some exciting new stuff tips up. This time, we've got a soldering kit, a fun-looking Dash, and extra bonus, an ink plate 10, which is a cool e-paper display from Soldered. We've unboxed it, pulling out a board with an esp32 module, an SD card, and a battery connector. One of the major selling points is its open-source nature, you can download all the schematics from GitHub, and for those inclined, learn about how to build pcbs. Also showcased a Simon Says game soldering kit, despite my modest soldering skills (we... 16 July 2025
Happiness is a Working Blink Sketch - ESP32-S3 PCBs Are Here! In this video, I explore the functions of my newly arrived little boards - essentially a PCB that an esp32 S3 room module can be connected to. I put the board's voltage regulator, battery charger, and a 3 watt class D amplifier to the test, and damn, they work perfectly! I even use breadboards, connecting them together to facilitate a wider workspace. I gave the pcbs a spin, conducting sanity checks to ensure full functionality. With a successful battery charge and impressive voltage measurements, my PCB's are up to the challenge. I also dabble in some circuit jargon, explaining schematics,... 16 July 2025
Lots of Stuff - And a NEW PCB! It's a rare mailbag video. In today's episode, I'm unboxing some goodies from PCB way - my super tiny esp32 breakout boards, which I'm planning to use to recreate a mini TV complete with speakers and a display. Also received some convenient adapter boards for easier testing. Excited to explore a new Arduino Nano esp32 based on a different, tinier module, and contrasting it with other products like the Tiny Pico. Also up for testing is a new mini wear electronic load compared to my old one, and an ATX power adapter for more USB ports. I'll be testing power banks, playing with inexpensive yellow... 16 July 2025
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Another Street Battery Salvage In this video, I plucked a battery from a Honey Melon street crystal, ending up with another 500-milliamp hour battery to add to my growing collection. After checking the connection, I added a protective PCB and tested the battery - a reasonable 3.5 volts at a flat level. Following the safe soldering of wires and wrapping it up, I hooked the revamped battery to my charger. It showed promising results, charging quickly at one amp with voltage visibly on rise. After a full recharge, I performed a load test which unfortunately gave a disappointing 311 milliamp hour. It falls short... 16 July 2025
TinyTV Teardown - RP2040 Inside In this episode of Atomic14 TV, we explore a cool gadget from Kickstarter - a tiny TV! Not only do we do an unboxing, but we venture inside its intriguing interior, with a circuit board, knobs and super-tiny battery. Included is a mini remote control, SD card, speaker, and audio amplifier. The tiny TV also has an IR receiver and even a Low Dropout Regulator! Stay tuned for a hands-on approach as we aim to recreate this tiny TV with an ESP32! 16 July 2025
Minimalist Microcontroller: Building a Bare-Bones Dev Board Dive into the fascinating process of building a minimal ESP32-based dev board, beginning with the ESP32-S3 Wroom module, and eliminating unnecessary components. Through soldering, wire connecting, and voltage testing, we reach a product that's compact, efficient and fully functional. 16 July 2025
A Replacement For AliExpress? An Amazon Killer? Delve into an intriguing comparison between new seller platform, Temu, and the well-established AliExpress, as we order, assess, and dissect various tech products. Discover the truth: Do quality, price, and delivery time stack up, and is this new 'Amazon killer' really a viable alternative for gadget lovers? 16 July 2025
Wireless Powered Raspberry Pi Dive into the magic of wireless charging technology with a Raspberry Pi Zero W2 and a TFT display! Discover how it manages to power up and run Doom without an obvious power source. Explore the efficiency, power input and output, temperature dynamics, and range of the transmitter. Furthermore, learn about the issues with locating magnets for alignment and possible solutions for ensuring a consistent power supply, including a complete wireless charging system with a battery. 16 July 2025
A Smarter Magic Mirror - Raspberry Pi Face Recognition and Doppler Radar Motion Detection Learn how to enhance a magic mirror with motion sensors, face detection, and face recognition using PIR sensors, radar sensors, and image processing on a Raspberry Pi. 16 July 2025
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Automating Blog Improvements with AI: Summaries, Tags, and Related Articles Learn how to use ChatGPT to enhance your blog's homepage, create summaries and tags, find related articles, and generate post images with ease, leveraging AI to save valuable time and effort. 16 July 2025
AI Powered Raspberry Pi Home Automation - Is this the future? Witness the power of ChatGPT controlling home automation lights through a Raspberry Pi, making life easier with plugins. Delve into the fascinating world of large language models, redefining interactions with APIs. 16 July 2025
Fixing the Ender 3 Printer's XT60 Connector Problem Learn how to fix a common overheating issue with the Ender 3 printer by properly wiring up a new XT60 plug and socket, improving connection and reducing heat build-up. 16 July 2025