Let's Make Robots!

IR compound eye

Mr._General_4.bas17.21 KB
Vendor's Description: 

I have posted some tip/walkthroughs on home made IR sensors for obstacle detection and later for motion tracking. Now DAGU proudly presents the IR compound eye. Designed to fit LMR's universal sensor bracket, this sensor works by shinning IR light onto an object and then tracking the reflected IR. This sensor does not work in bright daylight as sunlight has a lot of IR and blinds the sensor.The IR LEDs can be controlled by a digital output so that ambiant light as well as reflected light can be measured. Your microcontroller needs 4 analog inputs available to use this sensor. See a video of it working here: http://www.youtube.com/watch?v=iKYCob7getU

Note: calibration is not normally required, heatshrink is provided fo those who wish to fine tune their eye. A black permanent marker can also be used. Incorrect application can reduce the range of the eye.

This product is now sold at Robot Shop.

Click on the schematic for a bigger image.



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J1 is the connector with 7 pins. You can tell pin 1 if you look at the PCB because the pad is square instead of round. As Rudolf has mentioned:

pin1 is Vcc (+5V)
pin2 is analog output (up)
pin3 is analog output (left)
pin4 is analog output (down)
pin5 is analog output (right)
pin6 is digital output (IR leds)
pin7 is ground


I dont mean to add to the confusion, but you do mean "analog input" instead of output right?
I believe he's referring to it as "output from the sensor".

it's more like this line that is wrong/confusing:

pin6 is digital output (IR leds)

Here is what I think:

pin1 is Vcc (+5V)
pin2 is analog output (up)       ----->     MCU analog input
pin3 is analog output (left)      ----->     MCU analog input
pin4 is analog output (down)   ----->     MCU analog input
pin5 is analog output (right)    ----->     MCU analog input
pin6 is digital input (IR leds)   <-----     MCU digital output
pin7 is ground

I was just wondering..what are the dimensions of this thing?
The eye is designed to fit neatly on the Sensor Brackets so it is 50mm x 30mm

That's small..now I'm definately getting one since I'm gonna order a batch of servos anyway..I sent a mail to Claudia allready :)


PS: So I'll be translating you Picaxe code to Arduino soon...

I'll post some updated code for you tomorrow. Better description of each line and better imunity to ambiant IR

I thought this was so cool that I took the liberty of sharing it with the Arduino community...


I presume you wont mind, Oddbot?!