EcoDuino is designed by DFRobot to help you grow plants. By using a...
The Wireless Connectivity Cape offers advanced Wi-Fi features that...
Add 4.3” TFT LCD Display features a vivid 4.3" LED backlit 480 x...
Pololu - 3498
They are 2 mm thick with a 9.7 mm diameter, and the hole through the center enables them to securely press-fit onto the 2mm-diameter motor shafts of our 20D mm metal gearmotors (extended motor shaft versions only). The disc consists of ten evenly spaced magnetic poles (five north-south pairs), which allows for an encoder system that offers 20 counts per revolution.