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I have a wooden toy train that runs on wooden tracks. I would like to place two ESP-WROOM-32 Boards on top of the train. Broadcast communication (which involves radio frequency, not Wi-Fi) would help communicate about the train's lateness to five other wooden trains on the same track. Local communication would help communicate to the train station about the train's lateness. I would also need radio frequency Tx-Rx Modules for discharging and undergoing the signal, and repeaters just in case the signal loses power due to long-distance traveling. My wooden train should be automated. It should run at 4 inches per second, keep a minimum distance of 30 seconds away from the other wooden trains, and make a 17-second-long stop every 500 seconds. What's the procedure to connect the components? What's the Arduino code (C++) for this project?

Explain how can measure the 50Hz frequency: 1- Using timer operation 2- using counter operation. Calculate the error for each method.

Question 13

Hi! Please help me understand the pictures that are attached here. Thank you!

Could someone explain the solution picture 1 with the 'OR'. The solution is on picture 2 but I want an explanation on why the wiring for goes before the operation and not after it.  Question: What's the problem here? What would happen if we try 'OR'? How do we fix it.

A door needs to have a security system. The system is supposed to decide to open the door or to keep it closed by checking some conditions. The system should use a keypad and an IR receiver as inputs and one servo motor to move the lock of the door as an output.if the password is right or the right code(55)has been received by IR Receiver then the door should be open. Otherwise, the door should remain closed. To make the door open; turn servo to 90 degrees. To close the door, turn the servo motor to 0 degrees. After 20 seconds from unlocking the door, the door should be locked again. (i)Draw the circuit and connections you planned. (ii)Write the necessary code for the correct operation of the system.

What is a 10dB directional coupler?

If a reccessed luminaire without an integraljunction box is installed, what extra wiring mut be provided?

Amprobe Clamp-On Meter (Model RS-3) How many conductors should be in the jaws of the meter when measuring current? 1. a. One conductor of the circuit b. Two conductors of the circuit C. All conductors of the circuit d. None of the above of the scale. The best reading is in a. lower portion b. middle portion c. higher portion d. it does not matter which portion 2. 3. If vou loop the conductor around the jaws to get a better reading, the actual reading is determined by a. dividing the reading by the number of loops in the jaws b. multiplying the reading by the number of loops in the jaws c. reading the scale directly d. Other: ents on the Amprobe meter are taken using the jaws. 4. Voltage measu a. True b. False 5. List the scale ranges available for current with the Amprobe clamp meter: 6. List the scale ranges available for voltage with the Amprobe clamp meter: 0450_assign_ELTE108_Handout_Lab_02_2020-02-05 Page 6 of 12

3) What is a field control station involves?A: Power connectionB: One or more network connectionsC: Connection port for programmingD: All of the above

How to wire 220volt ac at a breaker box?

Is there anything particularly noteworthy about a CPLD?

Answer without explanation

Which of the following statements is true for an SCR. O A. It is an on-only controllable switch, which is turned on by a gating signal and cannot be turned off externally; only system conditions can turn off the device once it is on O B. None of the other choices are correct O C. It is a controllable switch, which is turned on by applying a gating signal and is turned off when the gating is removed O D. It is an off-only controllable switch, which is turned off by a gating signal as needed O E. It is an on-off controllable switch, which is turned on and off by a gating signal as needed

Explain this and elaborate