Best sensor for autonomous robot

#1

Hi
I’m buying individual blocks for my STEM class. I want to make a robot that avoids obstacles so it can navigate a maze. I need a power, bluetooth, motor driver and 2 dc motors.
For the sensor at the front is it better to use a dual IR detector
http://store.makeblock.com/Dual%20IR%20Detector%20Block

or an ultrasonic block?
http://store.makeblock.com/Ultrasonic%20Sensor%20Block

#2

Hello,

I have an All-In-One kit from Neuron and I used both blocks that you indicate.

It depends on which software you are going to program and how your labyrinth will be made (with walls or with a black line?)

Do you use the Neuron app for tablet for mBlock for PC or MAC?

Personally, I have not yet succeeded with the Neuron IOS application and the Dual IR Detector block.
Line Follower

#3

err

For the Neuron application on IPAD, I would go with the block Ultrasonic.
With the Line Follower block, the engine runs too fast to detect changes at the right time (even at 10).

#4

Thanks Crackel
Sounds like you need to add a reducing gear rather than direct drive the wheels.

I will try the ultrasonic sensor - I want to navigate a labarynth rather than line follower. It seems like I need to mount the sensor on a servo motor so it looks around.

#5

I just noticed you can control the output speed on the DC motors - did you try this?

#6

Hi,

I tried the value 10 but it’s still too fast. If, I try a value down 10 then the wheel does not turn. So I would have to add a gear system to feel the rotation of the wheels.

The Ultrasonic block will be much better. For the servo motor, you can also turn the car. Here is a model with front and rear propulsion that turns on itself very accurate.

JEEP

#7

thanks for that - I might try the Jeep. Did you use the wi-fi block so you can use with remote control?

#8

While browsing my site, I have 3 ways to remote control vehicles.

  1. With the software buttons in the Neuron app;
  2. With the Joystick block and the Wireless-T and Wireless-R blocks;
  3. With the Funny Touch block (Possible).

To connect to the tablet, I use either the block WIFI or Bluetooth.

#9