This is another braindump post, so my sentences may be a bit haphazard. In the scramble leading up to the IARC, I donated my Arduino’s atmega328p to the Aerial Team, which subsequently fried the chip. I ordered a new chip from Digi-Key a few days ago, but without the Arduino bootloader, I couldn’t upload sketches […]
If I had any real AVR skills, I would be able to generate a PWM signal of whatever frequency using the three (four?) timers in the ATmega1280 on my Seeeduino. Since I do not, I have to use the Arduino Timer library to generate PWM signals of arbitrary frequencies. Lately, I have been worried that […]
The Arduino I2C library is configured, by default, to 100 kHz frequency I2C. We can increase this to the more modern 400 kHz by changing TWI_FREQ in the Arduino I2C library from 100000L to 400000L. It used to take around 1500 microseconds each for my Seeeduino Mega to read six bytes off the accelerometer and […]
Two years ago, I started building a three-wheeled, omnidirectional, “kiwi drive” robot as a school project. For various reasons, I put the project on hold, while things like chemistry and flying machines distracted me. The parts sat in a drawer, unforgotten but largely ignored. ..Until last Monday.