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1answer
153 views

Not getting data from Parallax GPS

I am trying to use a Parallax PMB-648 GPS with an Arduino Nano running this code: ...
1
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1answer
744 views

Arduino with Parallax RFID reader storing variables in char

I am quite new to electronics and have been tinkering around with this Arduino UNO w/ WiFi Shield and the Parallax RFID R/W Module. Link to the RFID Module: ...
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1answer
351 views

Most efficient h bridge to run two DC motors in robotics application

EDIT: I was mistaken about the motors, I actually have a pair of DC motors I want to construct an h bridge that would allow me to control the servos in a boebot. However, I want to maximize the speed ...
2
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1answer
136 views

Propeller Chip with Catalina C compiler

I am working on a project using multiple MEMs sensors that communicate to a microcontroller where the data is processed before sending it serially via RF. I am using the Parallax Propeller Chip for ...
0
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0answers
124 views

Can't figure out how to connect Parallax position controller to PC

I was wondering if it is possible to connect the position controller to PC without having to use a microcontroller in the middle. I have seen this thread over here: ...
2
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1answer
856 views

1-Wire bus implementation in PIC18F series for Parallax ColorPAL #28380 sensors

I've bought a Parallax ColorPal 28380 color sensor, http://www.parallax.com/Portals/0/Downloads/docs/prod/sens/28380ColorPAL.pdf In the documentation above, they've used a Basic Stamp ...
1
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1answer
309 views

Arduino, problem with displaying RFID ID

I have recently gotten a Parallax RFID reader and I was trying to make it work with my Arduino uno. I have gotten all the necessary wires attached and I used a RFID reading program I found from Make ...
0
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2answers
283 views

Placing an ultrasonic sensor in a corrosive environment

A year or so ago I built a simple gauge for the fuel oil tank in my basement using a MaxSonar-EZ ultrasonic distance sensor. At some point, it stopped working, and when I removed it from the tank ...
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2answers
327 views

Having some issues with RFID reader

I just received an RFID reader from Parallax (#28440) to play with, and am having some problems getting it to send me data. I'm interfacing it with the mbed microcontroller that I also just received. ...
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6answers
922 views

What is a good way to learn the Parallax Propeller chip?

I am experimenting with the Parallax Propeller chip but don't have any ideas for projects to learn with. What are some good strategies on how to learn this chip? Are there any techniques or projects ...