This list reflects the parts that I used for my specific installation, not exact part requirements. The total cost using off the shelf components was ~$60.
| Name | Manufacturer | Model | Quantity |
|---|---|---|---|
| Raspberry Pi | Raspberry Pi Foundation | Zero W | 1 |
| Micro SD Card | Samsung | MB-MC32GA | 1 |
| Junction Box (6"x6"x4") | Cantex | R5133710 | 1 |
| 1/2" Conduit (6' Kit) | Southwire | 58004507 | 1 |
| 1/2" 1-Hole Strap | Halex | 26151 | 1 |
| 1/4" Concrete Screws | Tapcon | 24330 | 3 |
| Stranded Wire | Consolidated | 16 AWG Stranded | 36' |
| Buck Boost Converter | DZS Elec | LM2596 DC-DC HW-411 | 1 |
| TTL to RS485 Adapter | LC Electronics | 2046l | 1 |
| 1K Resistor | NA | NA | 1 |
The BOM for the PCB is shown below. This replaces the off the shelf power and communication adapter boards.
| Name | Manufacturer | Model | Quantity |
|---|---|---|---|
| 100uF Low ESR Electrolytic Capacitor | Panasonic | EEU-FR1H101B | 1 |
| 180uF Low ESR Electrolytic Capacitor | Panasonic | EEU-FR1V181 | 1 |
| 10uF Ceramic Bypass Capacitor | KEMET | C0805C106K8PAC | 2 |
| 0.1uF Ceramic Bypass Capacitor | KEMET | C0805C104M5RACTU | 2 |
| Green LED | Cree | C4SMA-GGY-CU2W37A1 | 1 |
| Schottky Diode | Vishay | 1N5820-E3/73 | 1 |
| 2x20 Header | TE Connectivity | 7-534206-0 | 1 |
| 4 Post Terminal Blockr | Phoenix Contact | 1711042 | 1 |
| 68uH Inductor | Coilcraft | MSS1278H-683KED | 1 |
| BJT Matched PNP | Diodes Incorporated | DMMT5401-7-F | 1 |
| MOSFET P-Ch | Diodes Incorporated | DMG2305UX-13 | 1 |
| 120 Resistor | Vishay | CCF07120RGKE36 | 1 |
| 200 Resistor | Vishay | CCF07200RGKE36 | 1 |
| 10K Resistor | Vishay | CCF0710K0JKE36 | 4 |
| 20K Resistor | Vishay | CCF0720K0JKE36 | 2 |
| 47K Resistor | Vishay | CCF0747K0JKE36 | 1 |
| 5V Voltage Regulator | Texas Instruments | LM2596S-5.0/NOPB | 1 |
| RS-485 Interface | Maxim | MAX485EPA+ | 1 |