ISU Audio & Arduino Clubs
Resistometer – Bill of Materials
- Kits are available from G. Tuttle. Request one in person at a club meeting or send an email togtuttle@iastate.edu.
- The BoM includes everything needed to make the resistometer PCB. To complete the project and use the meter you will also need a nine-volt battery and connector with barrel-jack connector or a 9-V supply with a 2.1-mm connector.
| item | Manufacturer p/n | Digikey p/n | quantity | item cost | total |
|---|---|---|---|---|---|
| Microcontroller | Microchip 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 L7805CV | 497-1443-5-ND | 1 | 1.08 | 1.08 |
| red LED | Lite-On LTL-4211 | 160-195-ND | 1 | 0.21 | 0.21 |
| 16-MHz crystal | ECS, Inc. ECS-160-20-46X | XC1759-ND | 1 | 0.37 | 0.37 |
| 0.33-uF capacitors | Murata RCER71H334K1DBH03A | 490-7543-1-ND | 1 | 0.62 | 0.62 |
| 0.1-uF capacitors | Vishay K104K15X7RF5TL2 | BC1084CT-ND | 3 | 0.29 | 0.87 |
| 22-pF capacitors | Vishay K220J15C0GF5TL2 | BC1005CT-ND | 2 | 0.27 | 0.54 |
| 56-kΩ resistor (1%) | Yageo MFR-25FRF52-56K | 13-MFR-25FRF52-56KCT-ND | 1 | 0.10 | 0.10 |
| 10-kΩ resistors | Stackpole CF14JT10K0 | CF14JT10K0CT-ND | 3 | 0.10 | 0.30 |
| 1-kΩ resistor | Stackpole CF14JT1K00 | CF14JT1K00CT-ND | 1 | 0.10 | 0.10 |
| 220-Ω resistor (1%) | Yageo MFR25SFTF52-220R | 13-MFR25SFTF52-220RCT-ND | 1 | 0.10 | 0.10 |
| Socket | On Shore ED281DT | ED3050-5-ND | 1 | 0.89 | 0.89 |
| ICSP header | Sullins PEC03DAAN | S2012E-03-ND | 1 | 0.38 | 0.38 |
| 3-pos female header | Sullins PPPC031LFBN-RC | S7036-ND | 2 | 0.38 | 0.76 |
| barrel jack | CUI PJ-102AH | CP-102AH-ND | 1 | 0.83 | 0.83 |
| screw - 2-56 x 3/8 | Essentra 010256F037 | RPC7524-ND | 4 | 0.12 | 0.48 |
| nut - 2/56 | Essentra 0400256HN | RPC7088-ND | 4 | 0.16 | 0.64 |
| stand off - 2/56 | Bivar 9913-125 | 492-1042-ND | 4 | 0.10 | 0.40 |
| bumpers | Bump Spec B25BL07X30RP | 2042-1053-ND | 4 | 0.06 | 0.24 |
| PCB | 1 | 3.00 | 3.00 | ||
| Total | 17.80 | ||||