The flow of sand is controlled so that it takes a set amount of time to completely empty the upper bulb. Hourglasses are often used as time management tools and decorative items. This time I will present you a very simple way to make a digital version of such a clock. This is another example in my collection of DIY unusual clocks which you can check out on my playlist. At first I tried to make the project with an Arduino Nano microcontroller, but it soon became clear to me that stronger performance was needed, so I used an ESP32 which is quite sufficient, even for a more complex project.
Interested in another hourglass project? Check out this LED Matrix Hourglass guide in our Learn System.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!
Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: A New Arduino MicroPython Package Manager, How-Tos and Much More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
