Quantity   Component name
1 × Arduino Pro Mini 328: 3.3 V / 8MHz Sourced from Sparkfun
1 × 2x16 Serial LCD This particular example sourced from Parallax
1 × LM7805 Power Management ICs / Linear Voltage Regulators and LDOs
2 × 0.01 uF Capacitor For filtering voltage into and out of the regulator
2 × 35 uF Capacitor Further voltage filtering for the regulator
2 × 10K Resistor Current limiting for the two IO ports used for comm data
1 × Enclosure
1 × RJ25 Jack Typically sold as a RJ11 jack, must have six contacts
1 × Assorted headers and wire