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| # | Post Title | Result Info | Date | User | Forum |
| Answer to: What’s the real impact of a broken neutral in a 3-phase 4-wire system? | 8 Relevance | 8 months ago | LogicLab | Theoretical questions | |
| Yeah, losing the neutral in a 3-phase 4-wire system can cause major issues, especially if the loads Aren’t balanced (which they usually Aren't in real-world setups like homes or small businesses). What actually happens is this: the neutral point “floats” because there's no solid reference anymore. So instead of each phase staying around 230V, the voltages start to shift depending on the loads on each phase. Light load = lower voltage, heavy load = higher voltage. In the worst cases, one phase might go up to nearly 400V—way more than your appliances are built for. As a result, you'll see major voltage fluctuations in your supply. There are protection relays and devices that can catch this (like a phase failure relay or neutral monitoring), but not every system has them—especially older setups. In short: broken neutral = unpredictable and often destructive voltage swings. A real pain to troubleshoot if you don’t catch it quickly. | |||||
| Multimeter continuity beeps with no contact — false positives? | 4 Relevance | 8 months ago | CircuitFlow | Equipments | |
| Hi everyone, While checking continuity with my multimeter, I sometimes get beeping sounds even when the probes Aren’t actually touching the wires.It seems like a false reading.Could this be due to stray capacitance, interference, or a faulty meter? | |||||
| Answer to: SR Latch Output Unstable with Mechanical Switches? | 4 Relevance | 8 months ago | Bryan | Theoretical questions | |
| Yep, you're on the right track—mechanical switch bounce is the most likely culprit here. Mechanical contacts don’t just close once—they physically bounce for a few milliseconds, causing multiple rapid transitions that your SR latch interprets as separate inputs. That’s why you're seeing multiple or unstable output changes. To fix this issue, I recommend using a resistor and capacitor on the input line. A typical starting point is a 10kΩ resistor and a 0.1µF capacitor. This will help smooth out the bounce. Also, make sure the inputs Aren’t floating and are properly pulled up or down. That should clean up the behavior of your SR latch. | |||||
| Answer to: Moore vs Mealy State Machines – Which One Should I Use? | 4 Relevance | 9 months ago | Yvette | Theoretical questions | |
| ... behaviors: Moore outputs change only on state transitions (i.e., clock edges), while Mealy outputs can respond immediately to input changes without WAiting for a state transition. In practice, this means that Moore machines are more stable and less prone to glitches, making them easier to simulate and debug. However, they may require more states and often have a one-clock-cycle delay in response. On the other hand, Mealy machines can be more efficient, often requiring fewer states and providing faster responses, but they can suffer from glitches if the inp ... | |||||
| Answer to: Good Arduino IoT projects for a beginner? | 4 Relevance | 9 months ago | Jignesh | Arduino | |
| ... thresholds + cloud alerts. 2. Smart Plant Mood Monitor Combine a soil moisture sensor, light sensor, and temp sensor. Based on readings, display your plant’s "mood" using emojis on an OLED or in a mobile app. Could also send WAtering reminders if the soil is dry. 3. Wi-Fi Jammer Detector With just an ESP8266, you can scan Wi-Fi channels and detect when there's suspicious interference or sudden drops in signal — send an alert if something looks off. Simple but cool networking concept. 4. IoT Trash Bin Level Monitor Use an ultrasonic sensor to measure h ... | |||||
| Answer to: Raspberry Pi Pico vs ESP32? | 4 Relevance | 10 months ago | DabieTech | RPi Pico | |
| If you prefer a board that maintains a workflow similar to the Arduino Uno or Nano, the Raspberry Pi Pico offers a familiar development experience. It supports both C/C++ and MicroPython, making it a great option for experimenting with new programming environments while retaining a simple and straightforward approach to hardware control. Its Programmable I/O (PIO) feature also opens the door to custom protocol development and precise timing applications, which Aren’t easily achievable on traditional Arduino boards. On the other hand, if you're ready to explore more advanced capabilities such as Wi-Fi and Bluetooth connectivity, multitasking, or real-time data streaming, the ESP32 provides significantly more flexibility. It supports multiple programming environments—including the Arduino IDE—while offering powerful hardware features like dual-core processing, built-in wireless communication, touch sensors, and high-resolution ADCs. While the development process might initially seem more involved due to the richer feature set, the ESP32 is well-suited for complex or connected projects and offers long-term value for those interested in expanding their skill set. | |||||
| Answer to: Li-ion vs. Li-Po Batteries: Which One Should I Choose? | 4 Relevance | 1 year ago | Admin | Theoretical questions | |
| ... They’re also cheaper and easier to find, which makes them great for most everyday electronics projects—like if you just WAnt to power an Arduino or some sensors and Aren’t too fussy about space. In general, Li-ion is a nice, reliable option if you’re not pushing high current or cramming everything into a super tight space. Li-Po batteries, on the other hand, come in those thin, soft pouches and can be shaped in all sorts of WAys, which is awesome if you’re building something with unusual dimensions or you need to save every millimeter of space. They can al ... | |||||
