I built an ESP32 PID controller to hold an oven at exactly 80°C for 12 hours — making perfect Clotted Cream at home. The system achieved ±0.3°C precision with just ~$15 in hardware. Full open source project with code, wiring diagram, and 3D-printable enclosure.
Author: vitormelon
AI cooks very well these days. But someone still needs to know how much salt to add.
TL;DR: I built a professional temperature controller (ESP32, PID, auto-tune, presets, LCD graph, power loss recovery, cloud integration) in one day. Something that would normally take a month. The difference wasn’t the tool. It was the experience to know what to ask — and to notice when something was wrong without looking at the code. […]
The 1-Billion-Reais Lesson: Technology Hype Isn’t Always the Best Solution
Imagine spending 1 billion reais on a project only to realize in the end that it doesn’t solve the intended problem. That’s exactly what happened with the ASX, the Australian Securities Exchange, when it tried to replace a stock deposit and settlement system with blockchain. An independent review revealed that the technology would neither speed […]
My Impressions as a Participant in the Real Digital Pilot (DREX), and One Detail That Displeased Me
Introduction: First of all, I want to clarify that this article exclusively reflects my personal opinion and does not represent the views of CERC. Let’s dive into the Real Digital Pilot project and understand its merits and areas for improvement. What Is Real Digital? The company I work for, CERC, is part of one of […]
What My Ideal Work Environment Would Look Like
Many of us have in mind changes we would like to apply to the workplace. I define the work environment as the set of structures, customs, rules, and tools that are present daily and are used by people to perform their tasks and achieve expected outcomes. After more than a decade of working in very […]
Xiaomi Mijia M365 Pro Scooter – Hard Brake issue – SOLUTION
I had the hard break issue with my electrical scooter (Xiaomi Mijia M365 Pro) that fried some MOSFETs and board circuit paths of the scooter controller, than I changed the original MOSFETs to similar ones, fixed the board paths and tested. This fixed the problem, but to prevent from happening again I had to use some heat pads on the MOSFETs and set the KERS to weak.
My Working From Home Table
As you know I’m a software engineer and since the pandemic situation got to Brazil I`ve been working from home. One of the main problem of that was arranging my (home) office
BoaCompra-Coffee: IoT that tells you if there’s coffee or not in a Slack channel using ESP-8266 and AWS Lambda
This post is separated into two parts, the first shows non-technical explanations of the problem and the second is just a technical explanation of how the problem was solved. The main contributors in this project were:– Gabriel Sabadin Facina– Jeferson Capobianco da Silva– Luiz Fernando Galdino Dubiela – Marcelo Gimenes de Oliveira– Rafael Dantas– Vitor […]
Hello World – The Onion Theory
Hello, in this first post I will present my vision on one of the things that you and I probably consider very important in life: Happiness.
I seek happiness in a very practical way and I will present to you through my Onion Theory: