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| # | Post Title | Result Info | Date | User | Forum |
| Answer to: How to secure your IoT devices from hacking? | 2 Relevance | 1 year ago | Philippe | Theoretical questions | |
| To secure your IoT devices from hacking, follow these seven steps before consulting an expert—most threats can be avoided this WAy: Change default usernames and passwords to strong, unique Ones. Keep the firmware updated to patch known vulnerabilities. Use a separate network (such as a guest Wi-Fi) for IoT devices. Disable unused features like remote access or UPnP. Enable your router’s firewall and monitor network activity. Use WPA2 or WPA3 Wi-Fi security with a strong password. Research devices before buying—choose brands with good sec ... | |||||
| Why does my Servo motor Jitter instead of holding position? | 2 Relevance | 1 year ago | hobart bess | Programming | |
| ... servo motor powered from the Arduino's 5V pin Signal wire connected to pin 9 #include <Servo.h> Servo myServo; void setup() { myServo.attach(9); myServo.write(90); } void loop() { } I've tried adding delay(1000); in the loop, but that didn't help. Do I need a separate power source for the servo, or is there another WAy to fix the jitter? Any advice would be greatly appreciated. | |||||
| How does an operational amplifier (op-amp) work? | 2 Relevance | 1 year ago | Jaden | Theoretical questions | |
| I understand the basics of electronics well enough, but for some reason, op-amps completely throw me off. I get that they amplify signals, but the whole idea of negative feedback, virtual ground, and different configurations just doesn’t click. Can someone break it down in a WAy that actually makes sense? | |||||
| Program to toggle LED state with a single button? | 2 Relevance | 1 year ago | tricky_logic | Programming | |
| ... tried using digitalRead() in a simple if condition, but I suspect I need to debounce the button properly. Should I use delay(), or is there a better approach using millis()? Here’s my basic code: const int buttonPin = 2; const int ledPin = 13; bool ledState = false; void setup() { pinMode(buttonPin, INPUT); pinMode(ledPin, OUTPUT); } void loop() { if (digitalRead(buttonPin) == HIGH) { ledState = !ledState; digitalWrite(ledPin, ledState); delay(200); // Debounce delay? } } Is there a more reliable ... | |||||
| Answer to: Difference Between delay() and millis() in Arduino? | 2 Relevance | 1 year ago | Admin | Programming | |
| In-depth explanation of delay() VS millis() in Arduino: What is delay()?The delay(ms) function is a simple WAy to pause your program for a specific duration (in milliseconds). While using delay(), the microcontroller does nothing except WAit, effectively blocking all other code execution. Example: Blinking an LED using delay()Here’s a basic example of using delay() to blink an LED every second: const int ledPin = 13; void setup() { pinMode(ledPin, OUTPUT); } void loop() { digitalWrite(ledPin, HIGH); // Turn LED on delay(1000); // WAit for ... | |||||
| Answer to: RAM VS ROM VS Flash memory in Microcontrollers like Arduino? | 2 Relevance | 1 year ago | Kanishk | Hardware/Schematic | |
| Think of these memory types in this WAy: const int myConstant = 42; // Stored in Flash (permanent) int myVariable = 10; // Stored in SRAM (temporary) EEPROM.write(0, 25); // Stored in EEPROM (permanent small data) Flash: Where the program itself is stored (const values stay here too). SRAM: Where runtime variables live (int myvariable). EEPROM: Stores values permanently (but with limited writes). ROM (bootloader in Flash): Loads your program when the board starts. If you turn off the power, only Flash and EEPROM keep their data, while S ... | |||||
| What connector do I need? | 2 Relevance | 2 years ago | GPag | Circuits and Projects | |
| How can I tell what the specs are on this connector so I can replace it? I need both the male and female sides. Do any of the numbers around the connector tell what it is?It connects the PCB to a AAA battery compartment. Forgot that the batteries were left in and they caused corrosion. Also, what is the best WAy to clean up the PWB? Thanks Attachment : IMG_2024-12-17-175606.jpeg Attachment : IMG_2024-12-17-175047.jpeg Attachment : IMG_2024-12-17-175758.jpeg | |||||
| Answer to: Confused About NODEMCU and ESP8266 – Are They the Same? | 2 Relevance | 2 years ago | Loris | ESP32 | |
| ... low-cost Wi-Fi microchip with full TCP/IP stack and microcontroller capability. It WAs developed by Espressif Systems and has become very popular due to its low cost and ease of use in Internet of Things (IoT) projects and other applications requiring wireless communication. NodeMCU: On the other hand, NodeMCU primarily refers to two things associated with the ESP8266: Development Board: The NodeMCU development board is based on the ESP8266 microchip. It's a user-friendly and open-source IoT platform. It includes a firmware that runs on the ESP8266 ... | |||||
| Answer to: Confused About NODEMCU and ESP8266 – Are They the Same? | 2 Relevance | 2 years ago | Admin | ESP32 | |
| ... due to its low cost, small size, and decent processing power. The ESP8266 itself is just a chip, and while you can use it directly, it’s typically integrated into modules or development boards for easier use. NodeMCU: This term means two things: NodeMCU Development Board: This is a development board that features the ESP8266 chip (typically the ESP-12E or ESP-12F module). The NodeMCU board makes it easier to work with the ESP8266 chip by providing additional features like USB-to-serial conversion, a power regulator, and easy access to the GPIO (input/o ... | |||||
| Answer to: analogWrite() Used on Digital Pins Instead of Analog Pins? | 2 Relevance | 2 years ago | Admin | Programming | |
| ... the digital pins ON and OFF at a very high frequency creating a dummy analog signal. And there are 6 digital pins on UNO that supports this behavior- with a "~" symbol next to them (like 3, 5, 6, 9, 10, 11) When you use analogWrite(pin, value), you're controlling the duty cycle of the PWM signal A value of 0 means the pin is off all the time. A value of 255 means the pin is on all the time. Values in between control how long the pin stays on during each cycle, effectively simulating an analog voltage between 0 and 5V. So analogWrite function has nothing ... | |||||
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