I've tried my best to _calibrate_ the NE555 to generate a 1 Hz clock. My oscilloscope was not precise enough for that, so I used a simple microcontroller setup based on the [NEO430](https://github.com/stnolting/neo430) to compare the NE555 clock against a Quartz-based reference clock. The deviation in _ms_ is printed via the processor's UART. After some fine tuning of the potentiometer I finally got a "good" 1 Hz clock from the NE555 and sealed the configuration with some nail polish.
Discussions
Become a Hackaday.io Member
Create an account to leave a comment. Already have an account? Log In.