Build Your Own Transistor Based Mobile Line Follower Robot (LFR)

The mobile line follower robot is a type of mobile robot with only has one specific task which is to follow the line made with black tape over the white background or vise verse. The LFR perhaps is one of the most popular robot build by the robotics, for more information please visit http://www.ermicro.com/blog/?p=1097

Category:

Science & Technology

Tags:

• LFR
• ROBOT
• TRANSISTOR
• LDR

[meshgheru]

I use a double gearbox instead that 2 micromotor and I change the 2n3904 with BC 639.

And the bot doesn't run! :( If one transistor is burned or fail,the circuit will work? I ask this because I thing one of that 2 transistor is broken.

[ermicroinfo]

@meshgheru, usually a double gearbox (e.g. tamiya) need more current in order to work compare to the micromotor (or the GM2 geared motor from solarbotics). This LFR circuit is designed to work with a small current (less then 100 mA). You could read more information on ermicroblog website shown on the video

[srikings]

boss can you get me the circuit and its components list. pls mail to: pdodlavssa@gmail.com

[geanfilms]

ADOREI SEU ROBÔ.PARABÉNS PELO VÍDEO!!!

[iceberg789]

very nice and simple, thanks !! :)

[geonylove]

am facut acest robot si sincer merge!!! multumesc pt postare tino tot asa

[ermicroinfo]

@zaiban03329777747, Congratulate! You could try to experiment with 12 volt, pay attention to the transistor if it getting to hot than you have to lower the voltage. With more voltage means the LFR will run more faster and it could become difficult to navigate the black line properly.

[zaiban03329777747]

@ermicroinfo i have made one and it is working beutifully thanks for sharing the idea and circuit , very simple circuit design....i have one more question can i use 12 v insteat of 5 v>>>.thanks