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What is the best way to add IR transmitter/receiver to raspberry pi 3 B+?

Posted: Tue Apr 30, 2019 6:55 am
by crocket
Currently, HiFiBerry Amp2 is added on top of Raspberry Pi 3 B+.

ANAVI infrared pHAT looks neat, but since Amp2 has tall capacitors on it, it seems I can't add it on top of Amp2.

The other two options are GPIO and USB. Do you know any good IR transmitter/receiver for GPIO and USB interfaces?

Re: What is the best way to add IR transmitter/receiver to raspberry pi 3 B+?

Posted: Tue Apr 30, 2019 7:38 am
by Joel_Mckay
sudo apt-get install lirc

Then search for a tutorial about setting up the interface:
http://alexba.in/blog/2013/01/06/settin ... spberrypi/
https://learn.adafruit.com/using-an-ir- ... enter/lirc

This program has been around for a long time.
https://gist.github.com/prasanthj/c15a5 ... 322c95378b

Cheers,
J

Re: What is the best way to add IR transmitter/receiver to raspberry pi 3 B+?

Posted: Tue Apr 30, 2019 9:01 am
by crocket
Joel_Mckay wrote:
Tue Apr 30, 2019 7:38 am
sudo apt-get install lirc

Then search for a tutorial about setting up the interface:
http://alexba.in/blog/2013/01/06/settin ... spberrypi/
https://learn.adafruit.com/using-an-ir- ... enter/lirc

This program has been around for a long time.
https://gist.github.com/prasanthj/c15a5 ... 322c95378b

Cheers,
J
I wanted to get recommendations for infrared hardwares. I can think about software setup later.

Re: What is the best way to add IR transmitter/receiver to raspberry pi 3 B+?

Posted: Tue Apr 30, 2019 11:51 am
by Joel_Mckay
They mention a 38KHz amplifier+de-modulator that runs at 3.3v just fine:
https://www.adafruit.com/product/157

Keep in mind there are many different remotes, IR wavelengths, and any one of 34/38/40/56 kHz modulations.
There were a few receivers that could auto-select several frequencies, but I can't recall a 3.3v version at this time.

Some end up using an mcu and a IR-pass filtered-photo-transistor to decode the raw input signal. Dumping a raw signal without decoding the modulation can be more "universal", but such methods are almost always more difficult to handle correctly.

Good luck,
J

Re: What is the best way to add IR transmitter/receiver to raspberry pi 3 B+?

Posted: Tue Apr 30, 2019 12:13 pm
by crocket
Joel_Mckay wrote:
Tue Apr 30, 2019 11:51 am
They mention a 38KHz amplifier+de-modulator that runs at 3.3v just fine:
https://www.adafruit.com/product/157

Keep in mind there are many different remotes, IR wavelengths, and any one of 34/38/40/56 kHz modulations.
There were a few receivers that could auto-select several frequencies, but I can't recall a 3.3v version at this time.

Some end up using an mcu and a IR-pass filtered-photo-transistor to decode the raw input signal. Dumping a raw signal without decoding the modulation can be more "universal", but such methods are almost always more difficult to handle correctly.

Good luck,
J
I don't like making a mess with jumper cables and a breadboard or prototyping on a breadboard.

What about USB infrared Toy v2 or ANAVI Infrared pHAT?

Is there any good USB infrared transceiver or any good infrared transceiver HAT?

Re: What is the best way to add IR transmitter/receiver to raspberry pi 3 B+?

Posted: Fri May 10, 2019 12:13 am
by PhatFil
For a product to use out of the box.. i use a broadcom Rm Mini device https://www.amazon.co.uk/Broadlink-Univ ... B01HPWMWCY

with the rm-node red node within node red on a pi-0-w to issue learnt IR commands via mqtt and alexa voice commands.

imho the drawbacks are :
#1 you need to download and install a phone app to learn codes and
#2 as a wifi enabled 'IOT device lord knows what usage data its sending out to the broadcom corporate servers

benefits are:
its 'seen' and repeated every code i have flashed at it.

and once all codes are learnt you can delete the phone app unless you also want to use your phone to control it via its app?

Re: What is the best way to add IR transmitter/receiver to raspberry pi 3 B+?

Posted: Fri May 10, 2019 2:59 am
by crocket
PhatFil wrote:
Fri May 10, 2019 12:13 am
For a product to use out of the box.. i use a broadcom Rm Mini device https://www.amazon.co.uk/Broadlink-Univ ... B01HPWMWCY

with the rm-node red node within node red on a pi-0-w to issue learnt IR commands via mqtt and alexa voice commands.

imho the drawbacks are :
#1 you need to download and install a phone app to learn codes and
#2 as a wifi enabled 'IOT device lord knows what usage data its sending out to the broadcom corporate servers

benefits are:
its 'seen' and repeated every code i have flashed at it.

and once all codes are learnt you can delete the phone app unless you also want to use your phone to control it via its app?
That's a reasonably priced product.

Items I have considered