| ??? 12/02/10 07:02 Read: times |
#179813 - Wrong. Responding to: ???'s previous message |
Andy Neil said:
For a Zebra crossing, a simple 555 timer would suffice! Jecksons Ben said:
Traffic light meant zebra cross. No, it does not! (remember, we are talking specifically about the UK here) A Zebra crossing is a crossing without any traffic lights! See the Wikipedia article linked earlier: http://en.wikipedia.org/wiki/Zebra_crossing A Zebra crossing is marked by Belisha Beacons: 
http://en.wikipedia.org/wiki/Belisha_beacon These flash continuously simply to mark the crossing - they do not have any control function on the traffic or pedestrians. Because they just flash continuously, a 555 timer would obviously be sufficient to simulate them! Or even just an astable multivibrator using a couple of transistors! |
| Topic | Author | Date |
| traffic lights | 01/01/70 00:00 | |
| you are thus forgiven, but | 01/01/70 00:00 | |
| Oh, how very British | 01/01/70 00:00 | |
| Menagerie of crossings | 01/01/70 00:00 | |
| Animal crossings... | 01/01/70 00:00 | |
| zebra cross | 01/01/70 00:00 | |
| Zebra crossing project | 01/01/70 00:00 | |
| trafic light | 01/01/70 00:00 | |
| Wrong. | 01/01/70 00:00 | |
| Laura used MCU | 01/01/70 00:00 | |
| Please read posts carefully! | 01/01/70 00:00 | |
| See the persons in that photo | 01/01/70 00:00 | |
| Double Pun | 01/01/70 00:00 | |
| Good one! | 01/01/70 00:00 | |
| delay | 01/01/70 00:00 | |
| Oh dear! | 01/01/70 00:00 | |
| Sequence | 01/01/70 00:00 | |
| Robot? | 01/01/70 00:00 | |
| Smith & Jones? | 01/01/70 00:00 | |
| Too many names? | 01/01/70 00:00 | |
| there once was a TV series ... "alias Smith and Jones" | 01/01/70 00:00 | |
| Alas, Smith & Jones | 01/01/70 00:00 | |
| A word to brighten my day | 01/01/70 00:00 | |
| seems like here | 01/01/70 00:00 | |
there's demand for that here | 01/01/70 00:00 |