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Step 6Write some test firmware to turn your MCU into a serial Voltmeter
I used the LPC2148 MCU from NXP LPC2148 in my setup, because I'm familiar with them from experience at my job. Other good choices would be any cheap MCU with analog inputs and free GPIO pins with a free GNU toolchain and an RS232 port.
Using your IDE and compiler of choice, write some firmware that will read the analog input you've decided on and put the results on the serial port. Given the complexity of MCU programming, more in-depth instructions on this subject would be a whole 'ible of its own. Flash your MCU with an appropriate flash cable. Your code works correctly on the first try, right?
Using your IDE and compiler of choice, write some firmware that will read the analog input you've decided on and put the results on the serial port. Given the complexity of MCU programming, more in-depth instructions on this subject would be a whole 'ible of its own. Flash your MCU with an appropriate flash cable. Your code works correctly on the first try, right?
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