I built a tool to measure DC performance of an ADC. Since I have it, I figured I may as well use it to investigate the four ADCs I have lying around- an esp32, and arduino uno (atmega328), SAMD21 based feather board, and the ADS1015. This post is about the data I want to collect … Continue reading ADC Comparison – What and How I am Testing
With the ADSXXXX series out of stock for the foreseeable future, I needed to evaluate the ADC’s on several micros to understand if they would be good enough for my application – reading oxygen sensors. Mostly I care about DC characteristics, because my signal should be changing very slowly- on the order of many seconds. … Continue reading Testing An ADC for DC Characteristics
Just another version of the micro word clock. Like the old version, this uses a matrix that is more widely available than the original matrix, including on adafruit. Unlike the older version, this version is very tiny (no larger than the display) and it incorporates a battery fallback for the RTC, as well as a … Continue reading Micro Micro Word Clock!