One day, I impulsively put aside the Substack scrolling, photo taking, music listening and navigating and tried an underused capacity of my mini computer: I phoned a friend.

It never fails: Just as you sit down to enjoy a nice meal with the family, your phone rings. Sigh. Even more annoying is the fact that a glance at your smartphone screen doesn’t show who’s calling.

Serial Studio turns data from your hardware into a live dashboard. Connect an Arduino, ESP32, STM32, Raspberry Pi, Teensy, or anything else that speaks serial, Bluetooth, a network protocol, or an ...

Each method "votes" on what it thinks the price is. If they agree, you're good to go. If they disagree, you see all the candidates and make the final call. No more accidentally tracking a "Save $200" ...