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Prototyping Update #2: Stepper Motor

In this update, we successfully configured the MSP430FR6989 Launchpad evaluation board to communicate with an A4988 stepper driver to run a NEMA 11 stepper motor. The stepper motor has a 27:1 gearbox on the output, which results in the input shaft having to turn about 27 times before the output shaft can complete a full […]

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Prototyping Update #1: SPI LCD and Analog Sensor

For this update, we successfully setup the MSP430FR6989 Launchpad evaluation board to read voltages from an analog sensor, in this case a light-dependent resistor (LDR), and display information on an LCD using SPI. For the analog sensor, we setup a simple voltage divider circuit between the LDR and a 1 kΩ resistor. The MSP430 uses […]

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