Here’s schematic for my Cloud Base Altitude Meter:
Bill of Materials
| Part | Manufacturer | Cost |
|---|---|---|
| Arduino Pro Mini | SparkFun | $9.95 |
| SHT15 Humidity and Temperature Sensor | Sensirion / SparkFun | $41.95 |
| 16×2 Character LCD | SparkFun | $15.95 |
| Trimpot 10K | Generic | $0.95 |
| Power Switch | Pololu | $6.95 |
| Push Button | Generic | $0.50 |
| “N” battery holder | Radioshack | $1.49 |
| A23 battery | Golden Power | $3.99 |
| ProtoBoard | SparkFun | $9.95 |
| Project case | SparkFun | $9.95 |
| TOTAL | $101.63 |
Source code
Click on this link to get Arduino source code: Source Code – Cloud Base Altitude Meter