RF Serial Data Link {trough USB}
TECGRAF DOCHow to transmit data using a cheap RF module trough USB. The circuit receives energy from the USB port (may provide 100mA and with some programming you can reach 500mA)
List of Materials:
1 - One pair of RF module (like Laipac RLP/TLP433A) look after it in sparkfun.com (they have different operating frequencies: 315, 433 and 917(?) MHz)
1 - TSUB3410 - Serial-to-USB integrated chip (QFP-32) from Texas Instruments.
1 - One Power LED (you may skip it)
1 - 3.3V LDO (Low Drop-out) regulator - to connect in the +5V (+/- 10%) line from the USB.
Start with the "walkthrough.pdf" guide, after it we will improve the wireless link to be connected to an USB port.
! ! ! - Altought it may look like a very simple circuit (just the RF link), you may find some rocks in your pathway.
I still don't know if this is a reliable circuit..so be carefull where you are going to use it. Be advised to try this circuit ONLY when you are in a good mood! if not go play PS2...otherwise this can damage your parasympathetic nervous system!
By: barmak Source: type: instructable
internet mlm Said:
on November 12, 2006 at 5:14 am
internet mlm
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