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| # | Post Title | Result Info | Date | User | Forum |
| Answer to: Logic Analyzer vs Oscilloscope? | 31 Relevance | 1 year ago | Admin | Equipments | |
| ... SPI, UART, etc. It captures the state of multiple digital lines over time, making it super handy when you need to debug communication between devices. For example, if you're working with an Arduino talking to an I2C sensor and you suspect there's a data issue, a logic Analyzer can show you the exact data packets being sent and received. On the other hand, an oscilloscope lets you see the actual WAveform of the signals. This is crucial when you need to check signal integrity issues like voltage spikes, noise, ringing, or timing glitches that a logic analyze ... | |||||
| Answer to: How to read resistor color codes? | 26 Relevance | 11 months ago | Paul | Theoretical questions | |
| A good rule of thumb when reading resistor color codes is to start from the end where the color band is closest to the lead. That first band usually marks the most significant digit, so if one side has a band that's clearly closer to the edge than the other, that’s your starting point. For instance, in many 4-band resistors, you’ll see something like red on one end and Gold on the other. The Gold band is usually spaced a bit farther from the edge, and since Gold and silver are never used as the first digit, that’s a solid hint they mark the tolerance and should be read last. Resistors can have up to 6 color bands, with the extra ones representing things like tolerance and temperature coefficient. These can be a bit trickier to read, but once you're familiar with the basic rules, it gets easier. Here’s a quick breakdown: 4-Band Resistor 1st Band = 1st digit 2nd Band = 2nd digit 3rd Band = Multiplier (i.e., how many zeros to add) 4th Band = Tolerance (accuracy) Example: Red (2), Violet (7), Orange (×1,000), Gold (±5%) → 27,000 ohms or 27kΩ ±5% If you still find it tricky, you can use an online calculator to make things easier: 👉Resistor Color Code Calculator | |||||
| Answer to: Logic Analyzer vs Oscilloscope? | 14 Relevance | 11 months ago | Tech Geek | Equipments | |
| I often rely on an oscilloscope to see whether a signal is working as expected or to figure out its exact behavior. Since not all signals are digital, a logic Analyzer isn’t always the right tool. The oscilloscope is especially useful when you're unsure about a signal’s timing. By viewing it on the scope first, you can determine the correct settings and then use a logic Analyzer more effectively if needed. | |||||
| Answer to: Logic Analyzer vs Oscilloscope? | 14 Relevance | 1 year ago | TechPulse | Equipments | |
| ... it only displays high/low states and lacks the ability to show WAveform details. An oscilloscope, on the other hand, excels in visualizing analog and digital WAveforms, providing critical insights into signal integrity, voltage levels, noise, and rise/fall times. It is essential for debugging analog components and mixed-signal systems but typically supports fewer channels. While logic Analyzers are better for multi-line digital analysis, oscilloscopes are necessary for understanding WAveform details and ensuring signal quality. Both tools complement ea ... | |||||
| Logic Analyzer vs Oscilloscope? | 14 Relevance | 1 year ago | Philippe | Equipments | |
| Hi everyone, I’m wondering if a logic Analyzer can fully replace an oscilloscope when working with digital signals. Are there specific cases where an oscilloscope would still be necessary, or can a logic Analyzer handle all aspects of digital signal analysis? | |||||
| ESP32 vs RP2040 – Which is better after Arduino? | 7 Relevance | 1 year ago | Neil_Overtorn | ESP32 | |
| I've worked with Arduino before and WAnt to try something new for my next robotics project. I'm considering either the ESP32 or the RP2040. The project might involve sensors and wireless communication. Which board would be a better step forward, and why? | |||||
| Answer to: Where can I learn more about direct port manipulation for controlling GPIO pins? | 7 Relevance | 2 years ago | Rashid | Programming | |
| This video is an absolute Gold. Thank you for sharing it. To learn more about architecture, what's the best WAy? | |||||
| Answer to: Why Fluke multimeters are so expensive? | 5 Relevance | 7 months ago | Kanishk | Equipments | |
| ... and leads, stable True‑RMS accuracy, and features like LoZ, VFD filtering, and fast continuity. Add tight QC, long WArranties, Service/parts availability, and strong resale/calibration support, and the cost reflects safety engineering and longevity more than branding. | |||||
| DIY an RF power meter Based on STM32F103 + MAX4003 | 11 Relevance | 2 months ago | anselbevier | Hardware/Schematic | |
| ... for beginners who are new to RF like me, and even the cheapest RF power meters cost hundreds of RMB. For electronics enthusiasts who follow the principle of "spend when you should, save when you can", DIYing an RF power meter is a great alternative. The first step WAs to define the functions and design the hardware circuit. To test RF power, a chip called a detector is required. I had not found a suitable option for a long time as it WAs my first time working with an RF detector, until I saw the power detection module on the E25-C test baseboard, which use ... | |||||
| Answer to: ESP32 not detected. No COM port displayed on my PC | 5 Relevance | 2 years ago | Amelia | ESP32 | |
| I had a similar issue with my ESP32 when I first started using it. In my case, the problem WAs the CP2102 driver. After installing the correct driver, the COM port appeared instantly. If you’re using Windows: Go to the Device Manager. Look for a device under "Other Devices" or "Unknown Devices" when you plug in the ESP32. Install the driver manually by downloading it from Silicon Labs (for CP2102) or (for CH340). If the LED still turns off After all this, it could also be a power issue. Do you have an external 5V power source to test it? | |||||
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