These are high quality sealed Single Pole - Double Through (SPDT) relays. This relay's coil is rated for 5V. The nominal operating current is 72mA so it will need additional circuity to close the relay with a microcontroller like an Arduino or SBC such as a Raspberry Pi or BeagleBone Black.
Powered by the ULN2003 high current driver, this module gives you easy control of up to 7 relays using TTL logic from an Arduino, Beagle Bone, or Raspberry Pi. 5V, 12V, and 24V relay options.
RELAY GENERAL PURPOSE DPDT 8A 5V
The remote receiver can be used as a replacement for the AR6200, AR7000 and the AR9000 remote receivers. It can also be used as an optional fourth remote receiver for the AR9000.
This is a direct drive 4WD base Programmable robot kit that uses Nexus mecanum wheels and hubs. This robot platform is meant for indoor robotics. It can vector in any direction. It makes a great Autonomous Robot.