Abstract
- Any person became a leaky ceiling bathe into an LED temperature show with reside updates.
- ESP32 + OneWire sensor feeds two 5×8 LED matrices to turn reside temperatures and color-coded standing.
- AI generated the code in mins — a amusing, sensible weekend mod that gave damaged equipment new existence.
The use of the bathe after somebody else is all the time a chance. You might be now not certain if the water will probably be simply the appropriate temperature, freezing chilly, or scalding scorching. I do know if my dad has used a bath sooner than me, I wish to flip it down sooner than I am getting in, else it’s going to really feel like my pores and skin is melting off.
However what if the bathe itself informed you the way scorching or chilly the water is sooner than you even stepped in? And what if it did this by way of appearing a reside temperature tracker at the ceiling, whole with a colour indicator? Neatly, this ESP32 undertaking simply is also your subsequent port of name.

This superb ESP32 recreation runs at 60FPS on a 480×320 display
It even has procedural tracks.
This ESP32 undertaking takes the guesswork out of trying out the waters
It additionally seems to be very swish
Over at the ESP32 subreddit, person Hungry_Preference107 had an issue. That they had a ceiling-mounted bathe head that began leaking, in order that they did what any excellent tinkerer would do: exchange the entirety they might with extra cool tech.
First, they became the bathe head into an LED array by way of including lighting fixtures throughout the person spouts the place the water used to come back out. To make sure the bathe nonetheless works like a bath, they prolonged the bathe arm and added a brand new head to the tip. They added a OneWire temperature sensor to the pipe, then stressed out up an ESP32 to clutch the temperature of the water and relay it to the LED display.
The general undertaking became a leaky bathe head into an LED ‘display’ that turns blue when it is chilly, white when it is at ease, and purple when it is too scorching. The LED array additionally presentations you what the present temperature is, thus taking out any guesswork as to whether the bathe is appropriate to climb into or now not.
It seems that programming it was once the very best phase:
Coding was once a 10-minute task the use of AI: I informed it was once a string of addressable LEDs organized into two 5×8 dot matrix shows on GPIO 2 and a one-wire temperature sensor on GPIO 12, and the way the colour will have to alternate according to temperature.
It was once a amusing little ESP32 weekend undertaking, and a lot more helpful than the leaking bathe head it changed.
So there you may have it: a groovy instance of taking one thing damaged and making it even higher than sooner than, the use of the facility of tech. Perhaps that is your signal to tinker with a few of your personal damaged stuff and spot if you’ll be able to give it a 2nd existence that is higher than its first one.

Any person constructed a complete 360° sonar on an ESP32, and the code is more practical than you would assume
Making the ‘ping’ noises along with your mouth is not obligatory.



