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Sensorless BLDC motor control

Hi there,   my current project is to build a controller for a sensorless BLDC motor using a MSP430G2553. I want to realize trapezoidal control with Back-EMF/zero-crossing detection. I plan to detect...

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GY521 MPU6050 - Accelerometer + Gyro on Energia

Hello, i need help with running GY521 gyro on my Stellaris Launchpad with Energia. I found something about wiring  GND -> GND 3,3V -> VCC Analog4 -> SDA Analog5 -> SCL   and also read this...

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Ultrasound Garage Car Stopper

A Ultrasonic car stopper project I made for my garage to inform as to how far I should pull my car forward. This project uses a MSP430 launchpad and a HSC - 04 ultrasonic range module as well as a RGB...

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Launchpad lm4f120 running I2C

Hello, I am having big troubles with running I2C on my stellarpad.   I am total noob to this topic so i want to ask if anyone can explain it. I have found that Stellarpad has 4 chanells. I have got...

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MSP430g2553 1mhz or 16mhz? how to set it?

I have here some msp430g2553 wich i don't know the frequency. Since sometimes i need a low consuption (and i don't know sleep mode) and others a faster uControler i need to know how to set the...

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stepper position feedback options?

What have you guys used for stepper motor position feedback? I'm aware of shaft encoders, hall effect sensors, magnet and reed switches... but haven't used any to actually get feedback/control....

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μ Launchpad V1.1 prototype build

hey guys, the boards and components came in for my μ-Launchpad.  I have the backside of the board populated so far, going to finish the front side tonight.   I have the LED μ-booster built up, it was...

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Dutch lanquage LaunchPad Forum

Hi,   For all you Dutch LaunchPad People: Now there is a Dutch Language LaunchPad Forum on: http://launchpad.swtrocketry.com   Voor alle Nederlandstalige LauchPad gebruikers:...

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mspgcc isr into archive library

When I insert into an archive library the interrupt services does not appears into the target elf.   I reproduced with a minimal gist the problem:   https://gist.github.com/attdona/0ef96f41155d780f70ef...

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Open Source Compiler for G Series

Hello,   Is there any Open Source Compiler for G series ? It would be of great help if anyone direct me to guide on how to set up Open Source compiler for G series and blinky program.   Regards,

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Veroboard for msp430 in my club

First i would like to clarify why i'm making this board   I'm in a robotics club. It only uses microcontrolers modules designed for basic. I wanted to change that. I realy like Texas microcontrolers...

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Storing IR codes in flash memory

Hi, i'm trying to make IR controlled relay board with programmable button to change IR remote codes, The IRremote library returning decoded infrared values in unsigned long type, when i try to write...

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Most Compact 8x8x8 LED Cube with G2553

This is an 8x8x8 LED cube, designed by me, i think its the most compact circuit i have ever seen on the internet regarding a cube of this size... Attached Thumbnails

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Using TEST / RST as digital outputs

Hello everyone, Is it possible to use the Launchpad's "TEST" and "(S1) RST" pins as logic outputs? What line of code would enable me to do this?   Thank you very much.

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scientific notation

Hi everyone! im trying to make a vacuum sensor with msp430 and a lcd, the sensor gives me an output from 0 to 10v, i have done a voltage divider for get 3.3v, but i have to print the mbars in the lcd...

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Math lib problem

Hello, i am having problems with math library using energia. I always keep getting thi s error. I dont know whats wrong.   Error  : http://pastie.org/8127090   Here you can read the source :...

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Programming MSP430F2012 uC with Launchpad SBW

A have made an instructables about using Launchpad Spy-Bi-Wire to upload program to a MSP430F2012 from Energia. It works in the same way using mspdebug on Linux....

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I2C Question

Hey everyone,   I was wondering how safe it is to send 0x0 over i2c. is it like sending any other byte or should it be avoided?   Thanks

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what is a normal I2C NAK ratio

I am working with the TLC59108 LED Driver chip over I2C and it is responding to my communications, however I have noticed it doean't always aknowledge its slave address call.   percentage wise it works...

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Did anyone see this clock on Dangerous Prototypes?

This looks pretty cool.  MSP430 + 2x 8x8 LED matrices, and a few other components.  Watch the video for features.   http://dangerousprototypes.com/forum/viewtopic.php?f=56&t=2784   They're always...

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