Import IR transmitter library on nrf52840 thread sdk

[mj_zen]

Hi,

I want to make universal AC remote, using nrf52840.

I have decoded IR codes of all AC remotes which have been decoded using IRremoteESP8266 library.

Since AC IR codes are quite long and each AC vendor has their own IR Protocol, how can I send long IR codes on nrf52840?

[Jørgen Holmefjord]

Hi,

The best solution would be to use the PWM peripheral, as this can output sequences directly from RAM without any CPU intervention.

We have implemented IR in our Smart Remote 3 reference design. I would recommend you to have a look at the Infrared transmitter documentation, and download the firmware, to look at how it is implemented in the code.

Best regards,
Jørgen

[Jørgen Holmefjord]

How did you implement the acknowledgement handler? This should be passed to drv_ir_init(), see m_ir_tx_drv_ack_handler() in m_ir_tx.c.

[mj_zen]

This m_acknowledgement_handler is passed in "drv_ir_send_symbol" in drv_ir_sirc.c file.

In m_acknowledge_handler(mp_ir_symbol), ir signal to be transmitted is passed in this m_acknowledge handler.

But after transmitting the signal once, code is stuck in this handler  and keeps on sending garbage values and my board reboots after sometime because of Watchdog which is enabled in main().

Please suggest what could be done.