Precision Projects: From DIY Clocks to Secure CAs
Dive into Issue #13 with hands-on maker projects featuring Arduino and Raspberry Pi builds. Learn to construct a PTP wall clock, set up a home lab with Portainer, and create a…
Arduino
Building a Precise PTP Wall Clock
Inspired by Oliver Ettlin's presentation, this project involves creating a PTP wall clock using a Raspberry Pi and LED matrices. It covers the technical setup, including hardware assembly and configuring the Raspberry Pi for PTP time display, while discussing the challenges of such precision in everyday use.
Read the build on jeffgeerling.com: Building a Precise PTP Wall ClockESP32
Build a Speaking Alarm Clock
Creating a speaking alarm clock with the XIAO ESP32-S3 is a rewarding project. It combines the microcontroller with Wit.ai for text-to-speech and a MAX98357A for audio output. The guide includes wiring, coding, and setting up a web UI, making it a smart home addition.
Read the build on circuitdigest.com: Build a Speaking Alarm ClockESP32 with Firebase: A Practical Guide
Integrating ESP32 with Firebase Realtime Database is a practical project for real-time data applications. This guide covers setting up the ESP32 to communicate with Firebase, providing example code for data transmission, and discussing real-world applications. Learn how to configure your Firebase project and authentication.
Read the build on randomnerdtutorials.com: ESP32 with Firebase: A Practical GuideRaspberry Pi
Raspberry Pi Pico and TM1637 Display
Integrating a TM1637 4-Digit 7-Segment Display with a Raspberry Pi Pico is a straightforward project for makers. This guide provides detailed wiring instructions, MicroPython code examples, and customization tips, making it a practical resource for those interested in microcontroller displays.
Read the build on randomnerdtutorials.com: Raspberry Pi Pico and TM1637 DisplayBuild a $15 DIY Walkie-Talkie
Creating a walkie-talkie for just $15 is possible with a Raspberry Pi Pico W and some basic audio components. This project involves simple assembly and coding with MicroPython, making it accessible and affordable. Plus, it's expandable with features like encryption or extended range.
Read the build on hackster.io: Build a $15 DIY Walkie-TalkieSet Up a Home Lab with Portainer
Setting up a home lab with Portainer on a Raspberry Pi is a practical project for tech enthusiasts. This guide walks you through installing Portainer, configuring Docker containers, and exploring potential applications. Perfect for hobbyists and professionals looking to manage their own lab environment efficiently.
Read the build on oneuptime.com: Set Up a Home Lab with PortainerBuild a Tiny CA for Your Homelab
Creating a small-scale Certificate Authority (CA) at home is simpler than you might think. Using a Raspberry Pi, YubiKey, and an Infinite Noise TRNG, this guide walks you through setting up a secure CA. Enhance your homelab's security with this practical DIY project.
Read the build on smallstep.com: Build a Tiny CA for Your Homelab