How Long Can You Run, MSP430? Three Weeks Plus!

How Long Can You Run, MSP430? Three Weeks Plus!

[K]enneth is busy testing the low power capability of the MSP430. He rigged his MSP430G2231 to 20F worth of super capacitors and an LCD screen to see how long the setup would survive. Its been almost three weeks and its still chugging. The controller sleeps and wakes up 32 times a second to conserve power. The setup also benefits due to the usage of a raw LCD module which is also updated(biased) 32 times per second. Part count is minimal requiring 2 capacitors, one resistor, a 32Khz watch crystal and an LCD. Jump for links.

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An MSP430 ADC Primer

An MSP430 ADC Primer

[N]JC has done an amazing job writing an article on the MSP430G2231 ADC. This is one of his follow up articles on building an oscilloscope with the MSP430 Launchpad. His writeup explains on how to setup the ADC, the different reference voltages and conversion/sampling times. Links inside.

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Make Noise with the Launchpad. Do a Led Zep.

Make Noise with the Launchpad. Do a Led Zep.

[G]atesphere managed to port his Arduino-based glitchamin to the MSP430. A glitchamin is a photo-sensitive electronic instrument that includes 2 potentiometers to generate various sounds. With a minimum part count you can generate really annoying sounds.

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Launchpad Infrared Remote Interface

Launchpad Infrared Remote Interface

[M]oonshadow, one of our forum members came up with a very clever use for the MSP430 Launchpad – control the volume on his amplifier. He reverse engineered the remote’s infrared protocol for specific buttons using the Launchpad. Once decoded, he programmed the Launchpad to turn a gearmotor in either direction to increase or decrease the amplifier’s volume.

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Capacitive Sensing With the MSP430 Launchpad

Capacitive Sensing With the MSP430 Launchpad

[J]oby came up with an innovative way to emulate capacitive sensing using a tinfoil, a capacitor and a resistor using the Launchpad. The theory behind it is simple – charge the capacitor, then wait for it to discharge it through the resistor when you touch it. This will register as a voltage to drop to a port pin. Video and link inside.

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Interfacing the ez430 Chronos with Labview

Interfacing the ez430 Chronos with Labview

[E]lgeeko, a NI forum member created a VI to interface with the ez430-Chronos watch. The Chronos receiver creates a virtual serial com port on a PC. Using the NI VISA serial library, its very simple to create VIs to talk to the watch. Look inside for a list of projects that [E]lgeeko came up with.

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Interface the Launchpad to a Parallax PIR Sensor

Interface the Launchpad to a Parallax PIR Sensor

[G]atesphere, one of our active forum members, tipped us about his PIR sensor interface to the MSP430 Launchpad. He ran into some problems in getting the Launchpad to detect pulses from the PIR sensor. After some debugging and help from his forum thread, it was found that the output of the PIR was too low for the MSP430 to register it as a high signal. More after the jump.

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Knight Rider LED Chaser – Launchpad Style

Knight Rider LED Chaser – Launchpad Style

As a kid, KnightRider was my all time favorite TV series – the car – KITT, stunts, car talking, autonomous mode, fancy controls – and who will ever forget the characteristic whoop-whoop that KITT’s LED chaser made. Well what do know, [J]oby came up with his LED chaser using 8 LEDs in PWM mode. All you need is the Launchpad, 8 limiting resistors and 8 LEDs. The usual way to run LEDs is via PWM so that you can control its brightness( or dimness ). The MSP430 however does not have 8 hardware PWM pins. Links and videos after the break.

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