401. How do you select the frequency of microcontroller?
402. If a board has an interface with a specific speed, do we use the same clok outside?
403. What are the components used around crystal?
404. How do we select components around crystal?
405. A board is powered up and observed that there is no output from crystal, how shall we debug?
406. If there are 20 external devices as slaves, what kind of interface is preferred?
407. If there are slaves with same address in I2C, how do we talk to a specific device?
408. How do we calculate the maximum number of slaves in I2C?
409. What are the guidelines to be followed while using Bluetooth and Wi-Fi on the same board?
410. What is the difference between switching regulator and fly-back topology?
411. What is the difference between DDR3 and DDR3L?
412. Which if faster, BLE or Wi-Fi?
413. What are the differences between 8-bit, 16-bit and 42-bit microcontrollers?
414. What kind of LCD did you use in your project?
415. What is the Wi-Fi standard of the module used in your project?
416. What is the maximum transfer rate of DDR3 module?
417. How is switch debouncing handled?
418. How many slaves can be connected over RS485?
419. How to handle switch debouncing in hardware?
420. What are the differences between decoupling and bypass capacitors?
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