These shift register chips on the module allow for 32
IOs from a single socket, plus allow for chaining the modules. Adding 4
of these module will enable any S socket with 128 new outputs! GHI taken
this a step further and added a 330ohm resistor on every output. With
this, transistors and LEDs can be added directly. Pins are outputs only
and capable of 10mA each.
Size: 140mm x 20mm
3.3V Consumption : Dependent on number of modules chained and use of outputs