Tech Explorations https://techexplorations.com/ ​Learn electronics and programming with our comprehensive courses. Mon, 17 Mar 2025 23:04:00 +0000 en-US hourly 1 https://techexplorations.com/wp-content/uploads/2016/03/favicon.png Tech Explorations https://techexplorations.com/ 32 32 Update: KiCad 9 and ESP32 PCB design course has new lectures https://techexplorations.com/blog/kicad/update-kicad-9-and-esp32-pcb-design-course-has-new-lectures Mon, 17 Mar 2025 22:59:01 +0000 https://techexplorations.com/?p=164624 After testing the first prototype of my ESP32-based PCB (see my blog post), I identified several areas for improvement. This iterative improvement process is critical in PCB design, as in any engineering effort. Every prototype reveals issues that aren’t always obvious during the initial design phase. To address these findings, I’ve made a series of […]

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]]> New Lectures on KiCad 9 Features Now Available in KiCad Like a Pro https://techexplorations.com/blog/course/kicad-like-a-pro-kicad9-update Fri, 07 Mar 2025 02:09:04 +0000 https://techexplorations.com/?p=164617 I am excited to announce that a new series of lectures covering the latest features in KiCad 9 is now available in KiCad Like a Pro. This update introduces several tools and enhancements designed to make PCB design more efficient, flexible, and precise. If you have already purchased the course, these new lectures are now accessible […]

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]]> New course: Advanced PCB design project with KiCad https://techexplorations.com/blog/course/advanced-pcb-design-kicad Wed, 26 Feb 2025 02:26:37 +0000 https://techexplorations.com/?p=164597 Designing and manufacturing a custom PCB is a rewarding experience, but taking your skills beyond the basics requires hands-on experience with real-world projects. That’s exactly what my new course, KiCad Advanced ESP32 Project, offers. If you’re already comfortable with KiCad and PCB design but want to explore more advanced techniques, this course will guide you through […]

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]]> Make an Open Source Drone: Course update https://techexplorations.com/blog/news/drones-course-review-and-update Mon, 10 Feb 2025 01:56:58 +0000 https://techexplorations.com/?p=164566 I’m thrilled to announce an update to my second drone course, “Make an Open Source Drone: More Fun.” The course contains new lectures that feature the Matek F405TE flight controller and teach advanced features of the Mission Planner software. If you want to see the updates, look at the “Course #2 update details” segment further […]

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]]> Designing a 4-Layer IoT Development Board with KiCad 9 https://techexplorations.com/kicad/kicad-9-designing-a-4-layer-iot-development-board Mon, 03 Feb 2025 01:42:11 +0000 https://techexplorations.com/?p=164532 In this project, I will walk you through the step-by-step process of designing a medium-complexity, four-layer IoT development board using the release candidate version of KiCad 9. This board features the ESP32-C3 SoC, sensors, flash memory, an SD card reader, and power management circuits, making it a versatile platform for IoT applications. Throughout the design […]

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]]> CrowView Note: Portable Monitor With Built-In Keyboard https://techexplorations.com/blog/review/crowview-note Sat, 04 Jan 2025 05:19:16 +0000 https://techexplorations.com/?p=164519 In this blog post, I’ll share my impressions of the CrowView Note. This device combines a slim, foldable monitor with an integrated keyboard, creating a single unit that’s easy to carry around. I tested it with a Raspberry Pi 5, a Khadas Edge2, and an iPhone 15 to see how it performs in different scenarios. […]

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]]> New Wokwi Simulator Lectures in Arduino Step by Step Getting Serious https://techexplorations.com/blog/course/arduino-step-by-step-getting-serious-wokwi-simulator-update Thu, 26 Dec 2024 00:03:04 +0000 https://techexplorations.com/?p=164509 I’m excited to announce a significant update to my course, Arduino Step by Step Getting Serious. This update introduces advanced lectures on using the Wokwi simulator, a powerful tool that enhances your ability to design, debug, and analyze Arduino projects in a virtual environment. With these new lessons, you’ll explore professional-grade features that make learning […]

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]]> New Simulator Tutorials in Arduino Step by Step Getting Started https://techexplorations.com/blog/arduino/arduino-simulators-new-lectures Fri, 20 Dec 2024 20:49:14 +0000 https://techexplorations.com/?p=164496 I’m thrilled to share a major update to my course, Arduino Step by Step Getting Started. The course now includes a comprehensive section on using online Arduino simulators, making learning and experimenting with Arduino easier than ever. With tools like Wokwi and Tinkercad, you can build and test your projects virtually without needing physical components. […]

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]]> Crowpanel ESP32 4.2” E-Paper Display: A Versatile and Energy-Efficient HMI Solution https://techexplorations.com/blog/review/crowpanel-epaper-display Wed, 11 Dec 2024 23:59:43 +0000 https://techexplorations.com/?p=164456 When compared TFT, LCD, and OLED, E-paper displays stand out for their energy efficiency, excellent readability in bright light, and a look that mimics traditional ink on paper. The Crowpanel ESP32 4.2” e-paper display, offered by Elecrow, is an exciting product that combines the power of an ESP32 microcontroller with the versatility of e-paper technology. […]

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]]> CRUMB: an immersive 3D circuit simulator https://techexplorations.com/blog/review/crumb-3d-circuit-simulator Tue, 03 Dec 2024 22:54:21 +0000 https://techexplorations.com/?p=164442 CRUMB is an interactive 3D circuit simulator designed to emulate a traditional workbench environment, allowing users to construct and test electronic circuits virtually. It offers a comprehensive selection of components, including passive elements like resistors and capacitors, semiconductors such as diodes and transistors, various switches, LEDs, displays, power supplies, signal generators, and programmable microcontrollers. This […]

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