How to make your first robot

Cost may vary for transreceiver

R/Dan M Sahib,

     The second link given for $52 now displays $1.46.

 

New AXE010X2 and SRF-05

Hi,

I’m a new guy here with so many interests on this field. I want to start with this kit but I’ve researched a bit and I want to be 100% confident before buying one and I have just a couple questions right now.

First is the main chip, the PICAXE-28X1 which have been replaced by the new AXE010X2 (PICAXE-28X2), It’s more expensive but how much more could it cost if the shop change the 28X1 for the new 28X2? It is possible to order the kit replacing the older chip for the newer one?

Last question is basically the same, I’ve found the HY-SRF05 more convenient for what I’m planning for my very first robot, although the Sharp could be useful for some sort of things like “lack of floor to ride on” sensor (as long as there are no black surfaces down). Could I replace this component too?

I know I should be asking the shop first, but I wanted to do here first to see if you sense I’m going to fail using the 28X2 when there are almost no differences or maybe the SRF05 needs more power or it’s not fully compatible with picaxe (I think it is).

More advices are obviously welcome, I’m just downloading and reading a ton of PDFs but sometimes that little things you only learn by practising is what could make a big difference.

Thanks for all, I’ll fill my profile soon and upload some pics of my progress. 

(Sorry for my english, I’m spanish!)

why frits had connected

why frits had connected shorting blocks and female wire and  why it  has left last

analogue_block_strong_0.jpg

  pin

is this right way

is this right   way  toconnect  or  in    really i  would  to connet     blocks  to last one …or  let  it   free…please  help

IR Sensor not giving meaningful input.

Heya guys! I just got my LMR kit, and everything was going pretty good until I got to testing the IR sensor. I will admit that it took me a little while to decide how to put the wires in. It’s hard to see in the picture, but ended up cutting and swapping the red and yellow wires in the cable so the yellow (signal?) cable actually feeds into the middle/red wire on the board. and the red wire feeds into the yellow.

Nothing smells like it’s burning or anything, but when I run the above “readadc 1, b0” code, I get a window with all this blank input, except the entry for b0, which just fluctuates between 0 and 4 and back again. I tried looking at the ir sensor with my phone camera and… sadly I am not seeing any infrared glow.

Did I set something up wrong, or is my sensor just busted?

purchase

Yes, thanks for your comments regarding costs. How do I go about buying the infrared robot?

Thanks

Thanks for the awesome tutorial - I still can’t quite believe that a troglodyte like myself acually managed to build a functioning robot following your guide! The funny thing is, it took me longer to figure out how to get the axepad software to recognise the USB cable on my version of linux than it did to actually build the robot.

The only problem is, now I can’t stop thinking about the next project… :slight_smile:

Help.

I’m to create a robot using Arduino Uno R3, L298N motor controller, and US-015 ultrasonic sensor.

I’m going the supply the Arduino from the DC barrel jack with 7.2v. The L298N will be powered from the Vin of the Arduino and the ultrasonic sensor will be fed through the 5v rail on the Arduino. However, I’m not concrete with this notion. Is this correct?

If i can ask it, how much

If i can ask it, how much cost make this robot? in general

Costs

I made mine earlier in the year, and the parts came to a bit over $100AUD, not including the programming cable and other odds and sods you might need (I didn’t even own a soldering iron). I’d say Australia is probably one of the more expensive places because of shipping costs etc, so you’ll probably find it’s cheaper depending where you live.

My suggestion in terms of budget is to make an inventory of what you need and go from there. Here’s an example of mine for this SH robot: 

  Quantity Cost
Picaxe 28 Project Board (AXE020) 1 $25.30
Male snap off header pins (at least strip of 10) 1 $1.75
Shorting (Jumper) Blocks 3  
Female-Female Jumper cables (at least 5) 1 $4.95
Picaxe 28X1 IC 1 $12.45
L293D Motor Driver IC 1 $2.95
DIL 330x8 Resistor Array 1 $1.70
Servo (eg S03N, HD3001HB) 1 $15.80
Sharp Analogue InfraRed Range Finding System 1 $18.45
Battery Holder 1 $1.65
Geared motors (120:1 or higher) 2 $17.90
Wheels 2 $13.20
subtotal   $116.10
shipping   $9.90
Total   $126.00

 Have fun!

 

I thought Frits left

I firmly remember frits posting that he wanted his account deleted as well as all his content.

Why is this post still up?

Frits has not left

Hi Chip,

Frits still has an active account on LMR and has not asked to leave. He has also posted responses here.

He is welcome to LMR at any time.

how to view video

when i click on the video, the video is saying private, how to get access to view the video.

what should i do if i get

what should i do if i get “firmware check error”?

Chirping sound from somewhere

Just got done building and balancing the body of the bot and went to set servo straight. Picaxe says the program uploads fine but the servo doesnt move when I write code to make look left and right. And if I leave the batteries in while troubleshooting it starts to make this high pitched chirping sound.