How many grams of coffee did I add to my pour-over?
Is the bag of cat food empty?
Did I remember to water the plant?
What’s the weight of these screws in my workshop?
To answer these questions (and more), you’re going to build an internet-enabled scale to track weight data over a period of time.
To do this, you’ll be performing a bit of hardware hacking – tearing down a DYMO Postage scale and soldering wires to connect it to a PyPortal. Then, you’ll add some CircuitPython code to the PyPortal which allows you to read the the scale remotely using Adafruit IO – our easy-to-use internet of things service.
This is an introduction to hacking and controlling consumer off-the-shelf electronics with CircuitPython.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell with Google Hangouts On-Air is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
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