Let's Make Robots!
FingerTech Robotics tinyESC Small Motor Controller (website) Read more
Starter pack designed for the hobbyist for PICAXE experiments. 18X supplied, but supports all 8,14,20,18,28,40 PICAXE sizes. Complete with Serial programming … Read more
This silicon tire makes a great replacement for your worn RW2-series tires. Read more

xmos progess anyone?

Calculon recieved a note from his lovely postman indicating that he will get it on monday. :)

From what he's been able to read, he gets the impression that almost all mechanics/electronics (motor control, LED control, adc, sensor-type switches, and so on) must be handled by other ICs that communicate to/from the xmos board with serial ...

Is that right, or is there something he doesn't understand yet?

Price: $29.95 USD

 Collected by one member
This dual brushed DC motor driver, based on Freescale’s MC33926 full H-bridge, has a wide operating range of 5 – 28 V and can deliver almost … Read more

Stall Detection

Ok, here's my problem for you guys.  How do you use a MCU(Arduino, PIC, Stamp, etc) to detect if the bot has a motor stalled on it. I know it can be done, because I've read about bots that are bumperless and detect which motor(s) are stalled for collision detection.  Yes, I know you measure the amps that the motor is pulling, but how do you use the microcontroller to do it?

 

Price: $4.95 USD

 Collected by one member
This semiconductor gas sensor detects the presence of methane (CNG) gas at concentrations from 300 ppm to 10,000 ppm, a range suitable for detecting gas … Read more

Common Electronics Knowledge Questions

Hi LMR. I have already made a robot, as you may know, but all I did (on the physical/electrical side of things) was plug a few cables into the pre-made servo ports on the Board of Education, as my copy of Electronics for Dummies told me to do. I read the entire thing, but they explained a few things in a way I didn't understand. Like the names for stuff, and what each means. Until now, I thought voltage was a measure of battery capacity. I FAIL, I know. I've sorted it out, so now I know about amps and volts, but I have a couple technical questions regarding electricity.

Dirk the homeless robot

dirk-sal-geld-hand.jpg

And more cool projects on Electric-Circus!!!

Price: $52.95 USD

 Collected by one member
This discrete MOSFET H-bridge motor driver enables bidirectional control of one high-power DC brushed motor. The little 1.8×0.8-inch board supports a wide 5.5 … Read more

A question about hooking up 2 LDRs to 1 picaxe input.

Hey everybody. I am a long time lurker on this site and I would like to thank you all for all the valuable information here. I have built a start here bot and a few more complex things of my own. Now I am trying to build a very small sized robot with a picaxe 08m.

I am a beginner in electronics. I know how to hook up a LDR and read the input, but I would like to know if there is a possibilty to hook up 2 to 1 input. The problem is I am short 1 input on my robot and all the other picaxe pins are in use. The 2 ldrs would be used as left and right eyes in a sense.

Price: $0.75 USD

 Collected by one member
This single-pole, double-throw (SPDT) switch can be used as a general-purpose micro switch or tactile bump sensor for your robot. The switch body dimension is … Read more

L293D question

I have build my own board with a PICAXE-18M and L293D motor driver.
The motor driver uses a seperate power source to power the motors.
When an output signal from the PIC is send to the L293D a LED shows the output is high.
All seems to work without problems; the motors do exactly what i tell them to do and so do the LEDs.

FIRST Ny regional

So i've been a little inactive lately, due in part to my involvement in my schools robotics team, but i'd thought i post a few pictures from our competition over the weekend at the javits center. Not exactly the greatest pictures but the competition was really cool.

 

Sorry it's taken me so long to update.

A little more on the robots:

Rorcle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

New plastic bumper, LCD mount out of expanded PVC, will be acrylic when I get the funds for a heat gun.

haven't made my decision as to which LCD I'm using.