| ??? 01/18/06 03:07 Read: times |
#107677 - need help on building 38khz reciver |
hi friends,
i need help to build 38khz reciver and transmiter circuit for my obstacle avoidance robot. i have got tsop 1738 reciver ic. i am trying to build 38khz frequency using 555 timer please help. i also have doubt that infrared led glow as normal leds. because when i tried to make it glow as normal led but there was no glow. i think our eyes cannot see infrared signals is it true. |
| Topic | Author | Date |
| need help on building 38khz reciver | 01/01/70 00:00 | |
| wrong place | 01/01/70 00:00 | |
| Infrared is invisible to the human eye | 01/01/70 00:00 | |
| See IR | 01/01/70 00:00 | |
| Ultrasound | 01/01/70 00:00 | |
| link | 01/01/70 00:00 | |
Search on proximity sensors | 01/01/70 00:00 |