Tag: arduino

Posted in Hardware Robotics

How to find out the SRAM consumption of an Arduino sketch

Build the sketch
Find /tmp/build*.tmp folder. There should be one, if you see multiple then rm -rf /tmp/build*.tmp and rebuild the sketch. Only one build folder should be in the /tmp (for simplicity
run avr-size /tmp/build*.tmp/[sketch_name].elf
sum of data and bss values if the number you’re looking for

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Posted in Hardware Linux Robotics Software

Fix: Error: register r24, r26, r28 or r30 required

I was recently compiling some Arduino code with NewSoftSerial and got hit by infamous “Error: register r24, r26, r28 or r30 required” error. NewSoftSerial is a great library and those using older avr-gcc compiler enjoy it alot. Problem is the newer gcc doesn’t like one nasty error in the code…

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