This is a simple project that hopefully I wont over complicate. Since he Squeegee needs to get as close to furniture and the toilet and bathtub as possible this my be a challenge. After all we spend most our time trying to get our robots to avoid the objects in the room. Im giving new life to a radioshack robie jr rc controlled robot.
By jstarne1
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Looks like the rear may drag too much so I may utilize a ball caster to prevent him from dragging. Perhaps one in the front and one in the back centered sounds good to me.
Ok excellent news! The small plastic ball casters I ordered arrived and now I can mount a couple on squeegee to make sure he can move without too much resistance. I will install these and then start troubleshooting this h bridge. If I don't have it moving in about 20 minutes im just going to swap this l297 out for a standard I one sold in the ezrobot store.
I also purchased a new digital Volt/ohm meter and new standard l298n h bridges for this project. Because the soldering iron I was using was an old 15 watt I purchased a new variable wattage iron more suited for this project. On the list is to purchase a digitally controlled and isolated soldering iron and station. This 30 watt variable will be fine for now
I understand now, I am using the H-bridges that DJ sells and it works fine. I think those casters will work great.
I tried two different h bridges and I still could not get it moving. Hmmm times like this make me wish I had a oscilloscope. I tried using different sets of ports , like d0 -d5 and still no change , its weird. Anyways maybe I can test digital port by watching for 5 volt positive coming off the signal pin. That sound right? Just trying to verify ports are pushing the signals they should. I have two more ezb on the way but I would love to have him running before that
I inserted this small ball caster with included screws on the rear of the chassis. Works very smoothWeller digital like mine is the best soldering station you can buy if you buy cheap it wont last very long.
looking at the best in meters is FLUKE they are always #1
ultra high precision is H.P 6 DIGIT METER and they make 10 digit meter also 6 digits i use for calibration.
But if looking for a good meter is should be able to check capacitors,frequency and have min max ,thats a good meter for robots FLUKE MODEL 189 4 1/2 DIGITS is a perfect meter for that i had it for about 10 years never went bad,calibration still perfect
JUST some of mine expert tips on buying test equipment
what would me a cool cleaning robot is to use one of neato,or roomba or ironbot MINT as the base for robie jr and take out most of the parts.
I idea i had for awhile,i have robie jr in mint condition so cant use him,but i think i have another robie jr bought so many many robots are to keep track of them,only reason i remember my robie jr in mint condition is that the box in on one of my shelfs and can see him easy
also that blower fan ,it looks like it was from a neato XV-11 model,i have so many of them over 20 if you need one.
i sell neato xv-11 parts on ebay ,mostly the motors go super fast and LIDAR NAVIGATION SENSOR it also sells fast one guy on here bought one.
@brett , thanks! They look good and wont scratch up a floor and can hold at least 6 pounds. Im considering installing two side by side for durability reasons but it rolls smooth.