FriedCircuits USB Tester v2.0 [Discontinued] _MAKE_TOOLS This is the Chibitronics Effects

This is the Chibitronics Effects Add-on Pack

The state of the inputs can be read

Torque: At 4

8" TFT breakout

Wikipedia has a great article on peristaltic pumps

FriedCircuits USB Tester v2.0 [Discontinued] _MAKE_TOOLS This is the Chibitronics EffectsUSB has become the core of many projects, but it's troublesome to test USB voltage levels and current usage using a breadboard. Some people try to splice cables and alligator clip onto frayed ends, but it's difficult to get solid readings. This USB Tester will make it much easier to monitor any USB project's power source. As part of the USB spec, ports are limited to 500mA, so you want to monitor how close you are. Most people use USB hubs, both