Let's Make Robots!

xbee

Xbee ADC

Ok, so I'm working on a plan to bring my little brother's little Niko RC car (you know, these models that suddenly break down for no reason at all after three charges) back to life. The plan is:

RC car

Ok, so I'm working on a plan to bring my little brother's little Niko RC car (you know, these models that suddenly break down for no reason at all after three charges) back to life. The plan is:

  1. Yank out old electronics (fun job, done ^^)
  2. Test steering servo and current draw of drive motor
  3. Build new electronics

Step 2 will be done by tonight but I have a few hickups on step three.

Chess Engine Update 4/3/11

Well by luck I happened to find some one elses chess robot in one of the instructables contest. He was using Apple script to communicate with a terminal chess engine. That is about as much as I read into his project when I was like "Apple script?"

Using An Xbee With I-Phone?

Browsing through sparkfun I found an ipod connector breakout board and a pin-out diagram. It appears to be that the ipod/phone have serial rx and tx pins. It also has the usual ground connectors and a 3.3v supply.

Would these pins be enough to hook up an xbee module?

 

pinout list: http://www.kineteka.com/PodBreakout-v1.aspx

Hello LMR! My name is Jordan, I'm in grade 12 in Canada, and this is my robot Fred. I won't say he's my first robot. I've built my share of line followers and … Read more

MY AGV development platform

 

I decided to do this as a blog as I plan for this to be a long term test platform as I mess around with different tech along the way.

OK I started by buying this RC truck chassis on eBay:

It uses a 7.2v NiMH battery and powers the motor using an ESC that delivers a few AMPs of 6v through a BEC to power a transceiver and the steering servo. Instead of a transceiver, I am hooking up an Arduino Fio and various components, housing them in a project box:

XBee AT/API Reliability

Hi all, I'm trying to control 4 servos with 4 pot via xbee, setup as follows:

Tx: Arduino connected to 4 pots(pins 0-3) & XBee (Series 2.5)

Rx: Arduino connected to 4 servos (pins 5, 6, 10, 11) & XBee (Series 2.5)

The Tx side will map the pot values (0-180) and send them over to Rx.

 

I've setup the XBees in AT Mode using guibot's tutorial but the order of the 4 values @ the Rx end jumbles up at times.

Wireless telemetry + video with 3 resistors and 6 feet of hookup wire
Using a
The Prop can generate NTSC, PAL, or VGA video signals.  Most users connect to their TV through a baseband (RCA jack) input.  Baseband is great for a wired … Read more
This is my first arduino project ever. I at first wanted to create a wireless car with a camera mount so that i can drive around the building. I started at the car … Read more

Xbees and rf modules

Hello guys. 

I was thinking about buying a few xbees for my lasertag project but since they're a bit costly i wanted to ask you if it fits my project before buying them.

I'll tell you what i want to to: basically lasertag is a game where there are lots of players that "shoot" at each other with IR pulses. What i wanted to add to it is some sort of "hit feedback", something, be it sound or LED, that tells me whether or not i have succesfully hit my target.

RC plane Project Part 11 - XBee Pro Field/Range Test

RC plane Project Part 11 - XBee Pro Field/Range Test

(NonStream Link) XBee Pro Field/Range Test 

At last i have done some field tests with the Xbees ..........

...... I have been jumping/running around my local flying field .......

..... even on the lowest power setting i was able to Rx a good clean signal....

Xbee conference notes

Gareth, David, Glen, Chris and I discussed Xbee radio modems. Here are some notes I took.

Watch part I  here.  Watch part II here.

TAG all your Xbee related content with the tag "xbee", please.

 

XBee Files - Part 1 - Basic Communications and Setup. Non-Stream Video :- XBee Files Part 1 This guide will take you through the basic setting up of the XBees in an … Read more

Xbee Live Conference

Call for conference guests

Who is interested in the upcoming Skype Conference on the advanced features of Xbees? The conference will be broadcast as a special live episode of the video (help-) show.

We are looking for a suitable and practical time slot. Hopefully some time this weekend. Can I hear some suggestions?

Help me connect Xbee to Picaxe!

OK, so I’m going to make a remote control to my next robot. I want to connect a picaxe 28x1 to a Xbee and I have ben trying to find
some good examples but with limited success.

As the Picaxe operates at 5V, whilst the Xbee operates at 3.3V I understand that the signal from the picaxe has to be regulated. (not just the input voltage to drive the device).
Of Cause I could run both the picaxe and the Xbee at 3.3V, but that would just screw with everything else I'm gonna connect to it.

Hi guys! Goggling around searching for information on arduinos and robots, I found this fantastic website. After spending hours reading your projects I decided to … Read more

Bandit @ 13:00 - Part 4 XBees (Plus Extra :- EPP Flying practice)

Project "Depron" took one leap forward , with the successful implementation of the XBee Pros and Servo mechanisms.

This is a key part of the project, which means that i can now rest easy that i have 1.5Kms of control over the plane.

It was no easy task to find compatible libraries for the Serial & Servo control,

In the end a combo of the NewSoftSerial.h and ServoTimer1.h was the perfect match for the XBee Pros, the whole system is running rock steady @ 38400Baud (@momo).

Hey guys, Figured I'd share some of my more recent work; Dragoon. This is an RX-64 based quadruped robot using an ArbotiX Robocontroller and the new & … Read more

Thinking of XBee Communication, a few questions before I jump in

What I intend to do is create a wireless link between my robot and my laptop, for remote serial programming, and remote control.

I posess a PICAXE 28X1 project board that i wish to connect with an XBee module.

From what I've seen in http://www.rev-ed.co.uk/docs/axe210.pdf an AXE210 is suggested. On page 9 however, we find that the XBee is only connected to the AXE by three pins: two inputs and one output.

Xbee modules help

HI, well, the free day is arriving, so i thought i'd go to sprakfun and fill my cart.

what exactly do i need to have wireless COM betwen two microcontrolers, or PC, to micro controller, or even stand alone Xbee's?

I have these items in my cart:

Help with XBee Explorer Regulated

Just received a couple of XBee & boards from SparkFun but I'm unsure how many pins are needed.

 

According to the schematic, http://www.sparkfun.com/datasheets/Wireless/Zigbee/XBee-Regulated-v10.pdf, there's a DIO3 pin.

 

What is it used for?

two modes, roaming with ping, and xbee remote control
Using a
Here is my latest little time killer, TRIppy the Tri Wheeler. Trippy is based on a tri wheel design, with the point of this build being speed.  As a matter of … Read more

Using Xbee for wireless program uploads and debugging with picaxe

Xbee_attempt_1.jpg

I have recently tried to use my Xbee modules to perform wireless downloads and debugging for Mr. Tidy but have had no luck.

The Xbee is a 3.3V device so I have translated the voltages ok. The Xbee manual states that by default the modules work transparently. BUT it also states that the idle state should be high, picaxe wants a low idle state so perhaps I just need to invert the signals. The next problem then is do I invert on the PC side as well??

Code help, please

I have been trying to use Guibots xbee example of controlling 2 led's with 2 pots. I want to control a servo with a pot through xbee. using the servo.h sketch the below is what i have, but cant seem to get it to turn the servo. if i hook it up directly with no xbee involved, it works fine. so my problem is taking the example servo.h scketch and being able to break it into two sketches. send and a receive. i appreciate any help.

 looking at the below can you tell what i am doing wrong?