Clue Coffee Scale
The Clue Coffee Scale precisely measures and displays your espresso machine's inputs and outputs so that you can create that perfect cup of java every time.
Improved AMG8833 PyGamer Thermal Camera
The original AMG8833+PyGamer pocket-sized thermal camera hardware is given a CircuitPython software upgrade to increase the image pixel resolution and color depth.
Improve Brushed DC Motor Performance
Brushed DC motors aren't known for their ability to work well at slower speeds; they prefer to zip and zag. In these motors, there's a little-known speed control mode that can be activated with just a couple of lines of CircuitPython code. The secret is in the PWM.
Improve the Low Speed of Brushed DC Motors
Brushed DC motors aren't known for their ability to work well at slower speeds; they prefer to zip and zag. In these motors, there's a little-known slow-motion mode that can be activated with just a couple of lines of CircuitPython code. The secret is in the PWM.
Adafruit LTR390 UV Sensor
The LTR390 is one of the few low-cost UV sensors available, and it's a pretty nice one! With both ambient light and UVA sensing with a peak spectral response between 300 and 350nm. You can use it for measuring how much sun you can get before needing to covering up.
PyGamer Thermal Camera with AMG8833
A pocket-sized portable non-contact Thermal Camera perfect for checking temperatures throughout the home and workshop. Its image and histogram modes make it easy to monitor temperatures from 32°F to 176°F (0°C to 80°C). The Hold button acts as a shutter for capturing fleeting events. The alarm threshold and display range are user-settable.
Build a Custom Front Panel
This guide will walk through the process of designing a high-quality front panel for your project's enclosure. We'll show how to fit components to the layout, create panel drilling guides, and will describe two techniques you can use to attach colorful label graphics.
Blues Playground
Using a Circuit Playground Express with CircuitPython's sound file and accelerometer support, we'll build a multi-voiced percussion instrument and blues chord progression player. Tapping the instrument will play the sound of a variety of selectable percussion instruments or step you through a blues chord progression one beat at a time. The project also includes a hack to connect the Blues Playground to a guitar amplifier for jamming on the big stage!
Basic String Car Racer
The Basic String Car is a simple project that consists of a battery, motor, pulley, and a bit of fence wire. The initial design of the car was made from repurposed parts and materials found in Grandpa's basement workshop. This version uses some commercially-available parts, but could be hacked with parts gleaned from old CD players, for example. What modifications and improvements would you make?
Motion-Activated Solder Fume Extractor With Lamp
A different take on the beginning maker's second project (a clock being the first, of course). We added a motion detector to activate the fan when you're soldering and a USB reading light to eliminate the shadows. The unit employs a USB-rechargeable lithium-polymer battery and provides a separate USB port for the lamp. This solder fume extractor fits into an off-the-shelf enclosure; 3D printing isn't required. Drilling and cutting the enclosure requires some intermediate fabrication skills, but a layout and drilling template is provided to make it easier to prepare the plastic case.