| ??? 06/02/03 12:19 Read: times |
#47234 - RE: Counting Cars Responding to: ???'s previous message |
hi
lay a rubber pipe across the road. the air pressure due to a passing car closes a mechanical switch....and causes your system to wake up...it counts and goes back to sleep. ed |
| Topic | Author | Date |
| Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 | |
| RE: Counting Cars | 01/01/70 00:00 |