IR LED interfacing with CC2541?

lovelesh

Other Parts Discussed in Thread: CC2541

Hi,

I am trying to interface IR LED with HM-10 module which contains CC2541. Is there any sample code for PWM generation for IR LED for 40khz pulse?

Thanks.

over 10 years ago

0 Fredrik K over 10 years ago

TI__Guru** 106705 points

Hi Lovelesh,

The CC2541 user guide explains how to do IR modulation in the Timer1 chapter.

Cheers,
Fredrik

0 lovelesh over 10 years ago in reply to Fredrik K

Expert 1020 points

Thanks Fredrik,
Your reply was spot on. I would appreciate if you could send me a link for the sample codes if they are available for IR generation.

Regards,
Lovelesh

0 lovelesh over 10 years ago in reply to Fredrik K

Expert 1020 points

Hi Fredrik,

My goal is to send IR codes for TV operation from my phone to cc2541. I have gone through a lot of posts and there seems 2 ways for IR generation:
1) Using the CC2541 user guide and timers 1 &3.
2) Using HAL libraries.

I am confused about what approach is faster to get my product ready. Any help is appreciated.

Thanks,
Lovelesh

0 Tim C over 10 years ago in reply to lovelesh

TI__Mastermind 34660 points

Hello. There are no HAL drivers for timers / IR Modulation for CC2541. You must write the driver yourself using the User Guide as Fredrik mentioned.

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IR LED interfacing with CC2541?