ISU Audio & Arduino Clubs
Temp-Time – Bill of Materials
- Kits are available from IEEE — contact the current IEEE representative, listed on the About page.
- The BoM includes everything needed to make the Temp-Time PCB.
- A DC source is needed to power the circuit. The source should provides at least 6 V and use a 2.1-mm barrel plug. A 9-V battery works, but will have to be replaced periodically. (Use a rechargeable!) A 9-V DC wall plug supply will also work. If you built the DC Supply project, this would be a perfect place to use it — set the voltage to 7.5 V or 9 V.
| item | Manufacturer p/n | Digikey p/n | quantity | item cost | total |
|---|---|---|---|---|---|
| Atmega328 | ATMEGA328P-PU | ATMEGA328P-PU-ND | 1 | 2.89 | 2.89 |
| OLED display | Hosyond (from Amazon) | Amazon | 1 | 3.00 | 3.00 |
| 5-V regulator | STMicro LD1117S50TR | 497-6447-1-ND | 1 | 0.38 | 0.38 |
| Real-time clock | Analog DS1307+ | DS1307+-ND | 1 | 5.75 | 5.75 |
| Op amp | Microchip MCP601 | MCP601-E/P-ND | 1 | 0.68 | 0.68 |
| Temperature sensor | TI LM35DZ | LM35DZ/NOPB-ND | 1 | 1.67 | 1.67 |
| LED (yellow) | Lite-On LTL-4251 | 160-1961-ND | 1 | 0.19 | 0.19 |
| Lithium backup battery | FDK CR1220 | SY033-ND | 1 | 0.79 | 0.79 |
| 16-MHz crystal | ECS-160-20-46X | XC1759-ND | 1 | 0.37 | 0.37 |
| RTC crystal | Abracon AB26T-32.768KHZ | 535-9032-ND | 1 | 0.29 | 0.29 |
| 10-µF capacitors | Panasonic ECE-A1CKS100I | 10-ECE-A1CKS100ICT-ND | 1 | 0.24 | 0.24 |
| 0.1-µF capacitors | Vishay K104K15X7RF5TL2 | BC1084CT-ND | 3 | 0.25 | 0.75 |
| 22-pF capacitors | K220J15C0GF5TL2 | BC1005CT-ND | 2 | 0.23 | 0.46 |
| 10-kΩ resistors - 5% | Stackpole CF14JT10K0 | CF14JT10K0CT-ND | 3 | 0.10 | 0.30 |
| 10-kΩ resistor - 1% | Stackpole RNMF14FTC10K0 | S10KCACT-ND | 1 | 0.10 | 0.10 |
| 2.2-kΩ resistor - 1% | Stackpole RNMF14FTC32K20 | S2.2KCACT-ND | 1 | 0.10 | 0.10 |
| 1-kΩ resistor - 5% | Stackpole CF14JT1K00 | CF14JT1K00CT-ND | 1 | 0.10 | 0.10 |
| Switch | C&K JS202011CQN | 401-2001-ND | 1 | 0.75 | 0.75 |
| Socket - 28 pin | On Shore ED281DT | ED3050-5-ND | 1 | 0.35 | 0.35 |
| Sockets - 8 pin | Assmann AR 08-LC-TT | AE9986-ND | 2 | 0.16 | 0.32 |
| ICSP header | Amphenol 67996-406HLF | 609-3218-ND | 1 | 0.31 | 0.31 |
| Barrel jack | CUI PJ-102AH | CP-102AH-ND | 1 | 0.76 | 0.76 |
| terminal block, 3 position | On Shore OSTVN03A150 | ED10562-ND | 1 | 1.26 | 1.26 |
| CR1220 battery holder | Keystone 3001 | 36-3001-ND | 1 | 0.46 | 0.46 | screw - 2-56 x 3/8 | Essentra 010256F037 | RPC7524-ND | 4 | 0.11 | 0.44 |
| nut - 2/56 | Essentra 0400256HN | RPC7088-ND | 4 | 0.15 | 0.60 |
| spacer - #2 x 1/8 | Bivar 9913-125 | 492-1042-ND | 4 | 0.10 | 0.40 |
| bumpers | Bump Spec B25BL07X30RP | 2042-1053-ND | 4 | 0.05 | 0.20 |
| PCB | Arduino Club custom | Available from IEEE | 1 | 2.00 | 2.00 |
| Total | 26.02 | ||||