
Required Hardware 1 Breadboard Jumper Cables (both M/M and M/F) 3 1-Kohm Resistors 1 MCP23017 16-bit I/O expander Having built our cube standing on our perfboard, we need to program it. To do that, we’ll connect the cube to an MCP23017…
By Eliza Strickland Posted 5 Sep 2013 | 18:20 GMT Meet the nuclear power worker of the future: the crawler bot.The 104 commercial nuclear reactors in the United States are now middle-aged; most were built in the 1960s and 1970s. So…