Cirrhosis of the liver is an extremely serious condition that requires extensive medical monitoring and often intervention. Progression of the condition can be fatal, so even if caught early it must be monitored closely. But, like most things in medicine, that gets expensive. That’s why Marb built his own DIY “micro lab” to analyze ammonia […] The post DIY micro lab analyzes ammonia levels in blood and urine appeared first on Arduino Blog.

“Single-point threading” on a lathe is the process of cutting threads, such as for a bolt, into the material through turning. The spindle/workpiece spin and the carriage moves linearly at a precise amount per turn of the spindle. That linear movement is the thread pitch. But this process usually requires several passes to reach the […] The post This mod simplifies single-point threading on mini lathes appeared first on Arduino Blog.

Pianos famously have a lot of keys. A standard full-size piano has 52 white keys and 36 black keys, for a total of 88. Therefore, people need to get clever when they build self-playing pianos. However, the brute force approach works, too. Paul Junkin’s brute force strategy was to add a solenoid for every one […] The post This robotic piano has solenoids for all 88 keys appeared first on Arduino Blog.

The age-old combination of physical locks and keys, although reliable, also comes with a few drawbacks, such as when you lose the key or you want to share access with someone else remotely. Davide Gomba has recognized this and built the MKR Keylock project as a way to address some of these shortcomings. Starting with an existing electronic […] The post MKR Keylock is an open-source IoT keypad for your front door appeared first on Arduino Blog.