SUNROM ELECTRONICS

RF Remote for Robot 2x DC Motors

Add battery and Motors to chassis with this board and your robot is ready to be controlled remotely

RF Remote for Robot 2x DC Motors

Sunrom Part# 4040

Available We dispatch same day if ordered by 4PM (excluding holidays), then courier usually takes 2-5 days.
Quantity Pricing
Quantity :
Price (Discount%)
1-4 :
Rs.649/- (0%)
5-9 :
Rs.630/- (3%)
10-24 :
Rs.604/- (7%)
25-49 :
Rs.584/- (10%)
50-74 :
Rs.571/- (12%)
75-99 :
Rs.552/- (15%)
100-249 :
Rs.532/- (18%)
250-499 :
Rs.519/- (20%)
500-999 :
Rs.506/- (22%)
1000+ :
Rs.487/- (25%)

The small board does great job in controlling 2x DC motors through RF Remote Control. You can easily make a robot out of this board that can be directed from remote control. Just add battery, motors and chasis. Good thing about the board is that it is possible to add external microcontroller to expand the functionality through serial UART pins provided on board.

Board can be operated in two modes, Auto mode (default on start up) and Manual Controller Mode. In Auto mode the DC motors are controlled totally from hand held RF Remote and it outputs the decoded remote data serially on its TXD pin for external controller to take further action if required. In manual controller mode the DC motors are not operated from RF Remote but the external controller sends it serial characters when ever motors are to be controlled.

Features

  • Drives 2x DC Motors(Forward, Reverse, Left and Right)
  • 3 Speed Control mode
  • Can work from any battery from 9-15V
  • OnBoard 5V 1 Amp Regulator based on LM7805
  • LEDs for Motor Direction and Power
  • Can operate in Auto or Manual Control mode by external controller

Overview of Receiver Board

You can connect any battery from 9V to 15V as it has regulator of 5V based on LM7805. You can connect two DC motors to make a robot and control from transmitter. The controller PIC IC decodes the transmitter and controls the speed of motors through L293 IC PWM.   

 The transmitter keypad remote we provide with this baord has to be stored in IC with the help on on board switch. When you order we store the transmitter already so board is ready to use, but just in case you order more RF transmitters from us you can use on board switch to store new transmitters so they will respond. You can store upto 20 keypads. For notes on how to store the transmitters to on board switch refer to product ST3777 notes.

Switches of Remote Used to control Motors

Use the switches as below to control motors. 

 

Modes of operation

The board has two modes of operation

  • Auto Mode (Also called stand alone mode, Just add battery and motors and control from Remote)
  • Manual Controller Mode (In this mode a external microcontroller is added and connected via the 4 pin connector, The motors no longer are controlled from Remote but instead controlled from external controller by serial commands. The pins required from external control are TXD and GND. The controller is always able to read all incoming IR commands from remote control serially through its RX pin.)

Auto Mode

This is the first mode the board takes upon power up

Manual Controller Mode

In this manual mode an external microcontroller is added and connected via the 4 pin connector, The motors no longer are controlled from Remote but instead controlled from external controller by serial commands. The pins required from external control are TXD and RXD. The controller is always able to read all incoming IR commands from remote control serially through its RX pin whichever mode is set.

For Serial Data format refer to product ST3777, it also has sample code you can use to develop further. 

Command list to control DC Motors from external controller

In Manual mode, these commands are to be sent from external controller to control the DC motors. The baud rate has to be 9600 bps.

ASCII Charcter

Effect

‘A’

Set Auto Mode (Use Remote to control motors) Default on startup

‘M’

Set Manual Mode (Use following commands to control motors, Remote not used)

‘F’

Forward the robot, ON two motors clock wise

‘B’

Backward the robot, ON two motors anticlock wise

‘L’

Left the robot, One clock wise and other anticlock wise

‘R’

Right the robot, One anti clock wise and other clock wise

‘S’

Stop both motors

 ‘1’  Low Speed
 ‘2’  Medium Speed
 ‘3’  High Speed

Note: Commands like F, B, L, R, S are only available in manual mode. If you wish to use manual mode first send command M to put the board in manual mode and then send direction control commands. Once commands like F, B, R and L are set the motors are ON as per commands. You will have to issue ‘S’ stop command to stop the motors else they will continue in same state as last command sent to it.

You can keep reading the serial data output from the board, which always gives state on what remote switch is pressed.

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  • GSTIN: 24AFBPT4632H1ZJ
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