Servo jitter in Arduino projects is usually caused by power instability, electrical noise, long signal wires, or software timing conflicts. To reduce it, use a separate and stable power supply for the servo (not the Arduino 5V pin), and connect all grounds together. Add a 100 µF–470 µF electrolytic capacitor near the servo’s power pins and a small 0.1 µF ceramic capacitor for noise filtering. A 220–470 Ω resistor in series with the signal line can also help. On the software side, avoid writing the same servo position repeatedly, filter noisy input signals, and use small delays or smoothing functions to prevent rapid position changes. These steps usually eliminate most servo jitter problems.

Hi,I WAs trying to understand the working of the 74HC595 Shift register, so I opened its datasheet.It has two registers(one called shift and the other one storage). But I am confused.. why do you need an extra storage register? What's the purpose of the register? How these two registers are working together to shift the O/P? Attachment :  Block-diagram-of-74HC595-Shift-register.png

Both are very different from each other. Here's how: Flash Memory Purpose: Primarily used to store the program (firmware) that runs on the microcontroller. Access Method: Works at the Block level, meaning you write or erase data in chunks, not byte by byte. Endurance: Lower than EEPROM, typically around 10,000 to 100,000 write/erase cycles per Block. Speed: Faster read speeds compared to EEPROM. Capacity: Much larger than EEPROM (e.g., Arduino Uno has 32 KB of Flash memory). EEPROM (Electrically Erasable Programmable Read-Only Memory) Purpose: Designed to store small amounts of data that need to be saved even when the power is off (e.g., device settings or user preferences). Access Method: Data is accessed and written byte by byte, making it perfect for small, frequently changing data. Endurance: It has a high write endurance, typically allowing 100,000 to 1,000,000 write/erase cycles. Speed: Slower compared to Flash. Capacity: Usually much smaller (e.g., Arduino Uno has only 1 KB of EEPROM). What is their purpose in Arduino boards? Flash Memory: This is where your Arduino sketch is stored when you upload it via the IDE. If you need to store constant data like lookup tables, you can use Flash with the PROGMEM directive. EEPROM: You can use it to store user-defined values like calibration data or device settings using the EEPROM library to store it permanently.