| Comment | Description | Designator | LibRef | Footprint | DISTRIBUTOR | DISTRIBUTOR PART# | MANUFACTURER | MANUFACTURER PART# | PROTOTYPE PRICE | Quantity | VOLUME PRICE |
| TP | Test Point | 5V, GND | TPS | SIP-1 | DIGIKEY | 2 | |||||
| 220uF | CAP ALUM 220UF 6.3V 20% RADIAL | C1 | CAP POL | RB-2MM-5MM | Digikey | 493-1004-ND | Nichicon | UVR0J221MDD | 0.156 | 1 | 0.054 |
| 100uF | CAP ALUM 100UF 50V 20% RADIAL | C2 | CAP POL | RB-3.5MM-8MM | Digikey | 493-1107-ND | Nichicon | UVR1H101MPD | 0.21 | 1 | 0.073 |
| 100nF | CAP CER 0.1UF 25V 10% RADIAL | C3, C4, C5 | CAP NP | RAD-0.1 | Digikey | 445-8421-ND | TDK | FK18X7R1E104K | 0.20 | 3 | 0.07 |
| 220p | CAP CER 220PF 100V 5% RADIAL | C7 | C-EU025-024X044 | RADCAP-0.1 | Digikey | 478-4847-ND | AVX | SR151A221JAR | 0.19 | 1 | 0.068 |
| 1N5819 | DIODE SCHOTTKY 40V 1A DO-41 | D1 | DIODE SCHOTTKY | AXIAL-0.4 - DIODE | DIGIKEY | 1N5819DICT-ND | Diodes | 1N5819-T | 0.31 | 1 | 0.11 |
| 1N4001 | RECTIFIER 50V 1A DO-41 | D2 | DIODE | AXIAL-0.4 - DIODE | DIGIKEY | 1N4001DICT-ND | Diodes | 1N4001-T | 0.13 | 1 | 0.028 |
| JP3 | 3 PIN JUMPER | JP1 | JP3 | SIP-3 | 952-2264-ND | Harwin | M20-9990346 | .14 | 1 | .08 | |
| 220uh | Inductor | L1 | INDUCTOR | RB-5MM - 9MMDIA | Digikey | AIUR-02H-221K-ND | Abracon | AIUR-02H-221K | 0.35 | 1 | 0.22 |
| LCD1602 | LCD 2 LINE 16 POS | LCD1 | LCD1602 | LCD1602_FLAT | 1 | ||||||
| OSTTC03 | TERMINAL BLOCK 5MM VERT 3POS PCB | P1, P3 | 3PIN-POW | OSTTC03 | Digikey | ED2601-ND | Onshore | OSTTC030162 | 0.68 | 2 | 0.43 |
| OSTTC080162 | TERMINAL BLOCK 5MM VERT 8POS PCB | P2 | 8PIN-POW | OSTTC08 | Digikey | ED2606-ND | OnShore | OSTTC080162 | 1.05 | 1 | 0.659 |
| OSTTC02 | TERMINAL BLOCK 5MM VERT 2POS PCB | P4 | 2PIN-POW | OSTTC02 | Digikey | ED2600-ND | Onshore | OSTTC020162 | 0.36 | 1 | 0.18 |
| 10PIN-SIL | P5 | 10PIN-SIL | SIP-10 | Digikey | 952-1843-ND | Harwin | M20-9991046 | .35 | 1 | .17 | |
| Photon | Photon | Photon | PHOTON | Sparkfun | WRL-13764 | Particle.io | Photon | 19.95 | 1 | 17.95 | |
| PTCPTH | FUSE PTC RESETTABLE .75A HOLD | PTC | PTCPTH | PTC | Digikey | MF-R075-ND | Bournes | MF-R075 | 0.25 | 1 | 0.15 |
| 1R0 | RES 1 OHM 1/2W 5% | R1, R2 | R-EU_0204/2V | AXIAL-0.5 | Digikey | S1HCT-ND | Stackpole | CFM12JT1R00 | 0.078 | 2 | 0.01 |
| 30K | RES 30K 1/4W 5% | R3, R7 | R-EU_0204/7 | AXIAL-0.4 | Digikey | PPC30.1KYCT-ND | Vishay | SFR2500003012FR500 | 0.126 | 2 | 0.019 |
| 20K | RES 20K OHM 1/4W 5% | R4 | R-EU_0204/7 | AXIAL-0.4 | Digikey | S10KQCT-ND | Stackpole | CF14JT20K0 | 0.05 | 1 | 0.008 |
| 10K | RES 10K OHM 1/4W 5% CF | R5, R6, R9 | R-EU_0204/7 | AXIAL-0.4 | [NoValue], [NoValue], Digikey | RNF14FTD10K0CT-ND, S10KQCT-ND, S10KQCT-ND | Stackpole | RNF14FTD10K0, CFM14JT10K0, CFM14JT10K0 | 0.10, 0.05, 0.05 | 3 | 0.016, 0.008, 0.008 |
| R-PACK-8-16 | RES ARRAY 330 OHM 8 RES 16-DIP | R8 | R-PACK-8-16 | DIP-16 | Digikey | 4116R-1-331LF-ND | Bournes | 4116R-1-331LF | .52 | 1 | .26 |
| RPot | Potentiometer | R10 | RPot | POT_TT38A | 1 | ||||||
| 1K | RES 10K OHM 1/4W 5% | R11 | R-EU_0204/7 | AXIAL-0.4 | S10KQCT-ND | Stackpole | CFM14JT10K0 | 0.05 | 1 | 0.008 | |
| MAC97 | THYRISTOR TRIAC .6A 600V TO92 | T1, T2, T3, T4, T5, T6, T7, T8 | LX807DE | TO-92 | Digikey | MAC97A8GOS-ND | ON | MAC97A8G | 0.308 | 8 | 0.108 |
| MC33063/34063 | U1 | MC33063/MC34063P | DIP8 | Digikey | 296-17764-5-ND | TI | MC33063AP | 0.45 | 1 | 0.26 |