We build a bench top power supply from an ATX computer power supply. These bench top power supplies can provide quite a bit of current at 3.3, 5, and 12 volts. We 3d printed a panel that houses a switch to turn the unit on, a switch to silence the fan, an indicator LED and three sets of terminals for the three voltages mentioned above.
How to connect the MCP21017 GPIO Expander to an Arduino and Raspberry Pi
In this episode, we take a look at the MCP23017 GPIO Expander IC. With this IC, we can add 16 GPIO pins to the existing GPIO pins on an Arduino, Raspberry Pi, or any micro controller that has an i2c bus. They can be “stacked” for up to 128 additional GPIO pins! Bring on the LED’s!
How to connect the MCP3008 Analog to Digital Converter (ADC) to a Raspberry Pi and Arduino
In this episode we take a look at the MCP3008 Analog to Digital Converter IC. With this chip we can add Analog inputs to a Raspberry Pi, or extend the analog ports on an Arduino.
DIY 3d printed Drill bit organizer
For Christmas I got some awesome new drill bits. But I want a different case for them. In this video, we design and 3d print a custom drill bit case for my new Norseman metric set!