uconn cse 1010 arduino simulator program

Please refer the datasheet for pin diagram.

Also, the circuit diagram mentions the Motor Driver as L293D but the motor driver used here is L298N.

Since the pins are same, there won’t be any problem. But the circuit diagram mentiones the DTMF Decoder IC as HT9170B.

As mentioned earlier, the DTMF Decoder IC used here is CM8870.

The above table gives the low frequency, high frequency and binary output value of each button pressed in the keypad.Ĭircuit Diagram of DTMF Controlled Robot without Microcontroller These values indicate that two motors rotates in the same direction i.e. If the robot is to rotate forward or backward then the binary value should be either ‘0101’ or ‘1010’. So, the robot moves in one direction either to left or right. Thus motor connected to the first two pins (OUT1 and OUT2) will rotate and the second motor stays off.

If the button pressed from mobile is ‘8’, it gives a decoded output of ‘1000’ (in the order of Q1, Q2, Q3 and Q4). The following image shows the binary decoded output corresponding to the key pressed on the keypad.Īlso Read the Related Post: Simple Line Follower Robot using Microcontroller These motors rotate according to the decoded output. This data at the output is directly given to the driver IC to drive the two motors. Then it is passed to code detector circuit and it decodes the incoming tone into 4bits of binary data. The decoder IC internally, consists of operational amplifier, whose output is given to pre filters to separate low and high frequencies. Tone from DTMF encoder is given to the DTMF decoder IC. DTMF Based Robotic Vehicle Circuit PrincipleĭTMF based robotic vehicle circuit consists of DTMF Decoder IC, Motor Driver IC (L293D or L298N), motors and a simple robot chassis to hold all these components.ĭTMF decoder IC used is HT9170B (actually a variant called CM8870 is used but the functionality is the same). Using this binary sequence, the robot is controlled.

This frequency can be decoded by the decoder IC into binary sequence.

Of the two frequencies, one is high frequency and another one is low frequency. When a key is pressed from our mobile, it generates a tone, which is a combination of two frequencies. This circuit consists of simple DTMF Tone decoder IC and a motor driver IC. Here, is a circuit that operates the robot without using a microcontroller. Robotic vehicle based on DTMF technology is explained in this article. Limitations of DTMF Controlled Robotic VehicleĭTMF is an acronym for Dual Tone Modulation Frequency.DTMF Controlled Robotic Vehicle Circuit Applications.How to operate DTMF based Robotic Vehicle?.Circuit Diagram of DTMF Controlled Robot without Microcontroller.DTMF Based Robotic Vehicle Circuit Principle.

Uconn cse 1010 arduino simulator program