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| # | Post Title | Result Info | Date | User | Forum |
| Are there any Arduino-compatible Wi-Fi modules that support 5GHz? | 2 Relevance | 1 year ago | Jaden | Arduino | |
| I know that most Arduino-compatible Wi-Fi modules, such as the ESP8266 and ESP32, operate on the 2.4GHz frequency. However, is there a WAy to connect such boards to a 5GHz Wi-Fi network? Are there any modules that support 5GHz, or is 2.4GHz the only option? I would like to understand this in detail, so please help me. | |||||
| How to Integrate Amazon Alexa with Arduino Cloud? | 2 Relevance | 1 year ago | CircuitSphere | Arduino | |
| Hi everyone, For our school project, we’re building a robotic car that can be controlled using voice commands. We WAnt to integrate Alexa with Arduino IoT Cloud to make this possible but don't know how to set it up. What’s the best WAy to connect Alexa to Arduino IoT Cloud, and what challenges should we be aware of? | |||||
| How to interface stepper motor with Raspberry Pi Pico? | 2 Relevance | 1 year ago | Harper | RPi Pico | |
| I’ve always used Arduino for stepper motor control, but I recently got a Raspberry Pi Pico and WAnt to try it for the first time. Since the Pico works differently, I’m unsure about the wiring, which driver to use, or how to write the code for smooth operation. What’s the best WAy to control a stepper motor with the Pico, and how does it compare to using an Arduino? | |||||
| How to use an NRF24L01 module for wireless communication? | 2 Relevance | 1 year ago | PCBChronicles | Arduino | |
| ... so I’m wondering what the best WAy to wire them is, especially to avoid issues with voltage drops. If anyone has a simple example sketch or a reliable guide for basic communication between two modules, that would be a huge help. Also, are there any common mistakes or things I should WAtch out for when working with these modules? Any advice or suggestions would be greatly appreciated! | |||||
| Answer to: Multiple LEDs using fewer Pins- how to expand Arduino GPIO pins? | 2 Relevance | 1 year ago | Admin | Arduino | |
| ... shift register, and you can daisy-chain multiple registers to control even more LEDs. This is a great solution if you need simple on/off control for your LEDs. Multiplexing – If you don’t need all LEDs to be on simultaneously, you can use a multiplexing approach. This involves arranging LEDs in a matrix where rows and columns are controlled separately, significantly reducing the number of GPIOs needed. However, since LEDs are turned on One at a time in rapid succession, brightness might be affected unless you use high-speed switching. LED Driver ICs (e.g. ... | |||||
| Answer to: Best practical uses of continuity function on a multimeter? | 2 Relevance | 2 years ago | Admin | Theoretical questions | |
| Hey there! The continuity function on a multimeter is super handy, especially when you're troubleshooting. It's the only function I have used more than a few hundred times. Sounds like you’re already on the right track using it to check connections, but here are some more WAys I’ve found it useful: Broken Wires: I use it all the time to check for breaks in wires. Especially when making breadboard projects. The jumper wires really annoy me when I find out the circuit is not working because of just that One faulty jumper wire. So now, before using any jump ... | |||||
| Answer to: How to Identify the Neutral Wire Using a Multimeter? | 2 Relevance | 1 year ago | Admin | Equipments | |
| Hey there! Here's a quick, step-by-step guide to identifying live, neutral, and earth wires using a digital multimeter: Set Up Your Multimeter:Choose the AC voltage mode and set the range higher than your local supply (e.g., 220V or 110V). Identify the Live Wire: Label your three wires as A, B, and C. Measure the voltage between A and B, B and C, and A and C. The pair that shows ~220V (or 110V) contains the Live and Neutral wires. For example: 220V between A and B i.e., One of them is live. Then, measure between One of these (A) and the third remaining wire (C). If A to C also reads close to 220V (or 110V), then A is likely to live. If it’s much lower (around 1-5V), then the live wire is the other One (B). Determine Neutral vs. Earth: Now measure the voltage between the identified live wire and the remaining two wires i.e., first between A and B, then between A and C The wire with a lower voltage difference (around 1-5V) compared to the live wire is neutral. For example: Bw A and B = 215 and BW A and C = 220. In this case, wire B is neutral The other wire, showing nearly 0V less than the neutral is your Earth i.e., wire C is Earth. Keep in mind: Ideally, live should be around 220V (or 110V), while neutral and earth are close to 0V (with a slight drop of 1-5V on neutral due to resistance). For a deeper dive and more detailed instructions, check out this article: How to Identify Live, Neutral, and Earth Using a Multimeter. | |||||
| How to interface an SD card with Arduino? | 2 Relevance | 1 year ago | catElectronics | Arduino | |
| I WAnt to use an SD card with an Arduino to store and retrieve data, but I’m unsure about the wiring and code setup. What’s the best WAy to interface an SD card module with Arduino, and what libraries or considerations should I keep in mind? | |||||
| How does a transformer work? | 2 Relevance | 1 year ago | abhinav singh | Theoretical questions | |
| I'm new to the electrical field and trying to understand how a transformer works. I've read a lot of material online, but some of it seems overly complex and confusing. Could someone explain the working principle of a transformer in a simple and easy-to-understand WAy? | |||||
| Answer to: RAM VS ROM VS Flash memory in Microcontrollers like Arduino? | 2 Relevance | 1 year ago | Admin | Hardware/Schematic | |
| ... sketch, it gets stored here permanently. It's like the hard drive on your computer – it keeps the code even when you turn the power off. So, when you power your Arduino back on, it knows what to do because the code is safe and sound in the Flash. SRAM (like RAM on your computer): This is your Arduino's working memory. When your code runs, it uses SRAM to store variables, temporary values, and all the stuff it needs to keep track of while it's running. Think of it like your computer's RAM – it's super fast, but it's volatile. That means when you turn the po ... | |||||
| How can I safely power a BLDC motor from a hard disk drive? | 2 Relevance | 8 months ago | Anil_Tech | Theoretical questions | |
| I have a brushless DC motor taken from an old hard disk drive and I WAnt to power it safely for testing or small DIY applications. Since these motors are usually designed for specific control circuits, I’m not sure about the correct voltage, current, and driving method. What’s the safest WAy to power and control a hard drive BLDC motor? Should I use a dedicated ESC, a custom driver circuit, or a microcontroller-based solution?Any tips for determining the correct pinout and avoiding damage to the motor would also be helpful. | |||||
| Why is SPI faster than I2C in microcontrollers? | 2 Relevance | 1 year ago | Paul | Theoretical questions | |
| I understand that both SPI (Serial Peripheral Interface) and I2C (Inter-Integrated Circuit) are commonly used communication protocols in microcontrollers, but I've read that SPI is generally faster than I2C. Could someone explain the key reasons behind SPI's speed advantage? Does it have to do with the WAy data is transmitted, the absence of certain control mechanisms, or other factors? Also, are there specific scenarios where the speed difference between SPI and I2C might not matter as much? | |||||
| Answer to: Suggest some good Arduino books? | 2 Relevance | 2 years ago | Deboojit | Arduino | |
| The best WAy to begin is by using a starter kit. These kits typically include an Arduino UNO, a selection of sensors, electronic components, and a detailed workbook or online resources with example projects to guide you step-by-step. For me, the book "Getting Started with Arduino" by Massimo Banzi and Michael Shiloh works best. | |||||
| RE: What exactly is PWM resolution ? | 2 Relevance | 2 years ago | Sebastian | Hardware/Schematic | |
| Good point by @FullBridgeRectifier . Just to clarify for anyone new to this: when we say “divide by 255 instead of 256,” it’s because we’re looking at the maximum value the PWM can take, not the total count of values. This WAy, your duty cycle calculations always correctly reach 100%. | |||||
