| ??? 12/29/05 11:59 Read: times |
#106146 - Finding %RH Responding to: ???'s previous message |
Hi Athar,
I looked at the data sheet you linked to. If I understand your question the solution is very straightforward. You have two data points of a linear function which must satisfy the equation f(x) = mX + b Your data points are (0, 0) {X = 0V, f(X) = 0%RH} and (3.3, 100) {X = 3.3V, f(X) = 100%RH}. You can calculate m (the slope of f(X)) as the rise over run between the two data points, and that will give you all the information you need to solve for b. Then you have your equation. I will be happy to help you further, but on the chance that you are a student I thought you might be better off seeing if you can take it from here. I'll look for your next post. |
| Topic | Author | Date |
| Problem Humidity Project | 01/01/70 00:00 | |
| Which humidity sensor? | 01/01/70 00:00 | |
| Problem Humidity Project | 01/01/70 00:00 | |
| Datasheet? | 01/01/70 00:00 | |
| Problem Humidity Project | 01/01/70 00:00 | |
| 2-byte character | 01/01/70 00:00 | |
| Finding %RH | 01/01/70 00:00 | |
| Temperature compensation needed? | 01/01/70 00:00 | |
| Surely | 01/01/70 00:00 | |
| Why bother? | 01/01/70 00:00 | |
| Why bother? | 01/01/70 00:00 | |
| Problem Humidity Project | 01/01/70 00:00 | |
| Problem Humidity Project | 01/01/70 00:00 | |
| Comment your code! | 01/01/70 00:00 | |
| Problem With ADC Code | 01/01/70 00:00 | |
| Where are the comments?? | 01/01/70 00:00 | |
| Problem With ADC Code | 01/01/70 00:00 | |
| Try this | 01/01/70 00:00 | |
| Mixing 3V and 5V chips | 01/01/70 00:00 | |
| 3.3v sensor, 5v chip | 01/01/70 00:00 | |
| The problem is... | 01/01/70 00:00 | |
but then | 01/01/70 00:00 |