IR receiver doesn't work?

ygrakes · May 14, 2016, 1:40am

Hello
I would like to test a IR receiver (model RB-See-185) with my GrovePi but I don’t know if I do the correct actions.
I connect the sensor on a A0 port and launch the script: /Desktop/GrovePi/Software/Python/grove_ir_receiver.py (with parameter in script pin port=1).
Nothing is not happening when I test with my remote controler.

I have tested:

an other analogic port
a numeric port
but nothing.

Could you help me? I’m newbie in Raspberry/GrovePi world

Attached my configuration.
All update are done on software and firmware.

karan · May 17, 2016, 11:47pm

Hey,
The IR receiver can only be used with the serial port. Can you try out the instructions and example here: https://github.com/DexterInd/GrovePi/tree/master/Software/Python/grove_ir_receiver.

-Karan

ygrakes · May 24, 2016, 2:20pm

Hello
I have launched the script with the ir receiver on serial port. Attached script logs.
Nothing appears on screen

Thank you.

karan · May 25, 2016, 1:23am

Hey,
If it has been set up correctly, you’ll have to follow the instructions here: http://alexba.in/blog/2013/01/06/setting-up-lirc-on-the-raspberrypi/ to set up the Pi to work with your receiver. The big change here would be that you have to use lirc_rpi gpio_in_pin=14 everywhere in that page instead of gpio_in_pin=23,gpio_out_pin=22.

-Karan

ygrakes · May 25, 2016, 11:01am

Hello
My steps after your answer:

sudo apt-get install lirc : already installed
/etc/modules : there are 2 lines with “lirc_rpi gpio_in_pin”
/boot/config.txt : there are 3 lines with “dtoverlay=”
I have tested with command “mode2 -d /dev/lirc0” : nothing appears on screen
modify /etc/modules : comment line with port 15
modify /boot/config.txt : comment lines “dtoverlay=” other with 14
reboot
I have tested with command “mode2 -d /dev/lirc0” : nothing appears on screen ;-{

Attached my logs + photo.

Thank you.

karan · May 25, 2016, 11:00pm

Hey,
Can you connect the sensor to the first port RPISER instead of the second port. Also, first try out dtoverlay=lirc-rpi,gpio_in_pin=14. If this doesn’t work then try out dtoverlay=lirc-rpi,gpio_in_pin=15.

-Karan

ygrakes · May 26, 2016, 10:30am

Hello,
My tests:

IR receiver connected on port serial (at left at the first test first port)
boot with /boot/config.txt : dtoverlay=lirc-rpi,gpio_in_pin=14
check with command mode2 -d /dev/lirc0 : nothing
modify /boot/config.txt : dtoverlay=lirc-rpi,gpio_in_pin=15
check with command mode2 -d /dev/lirc0 : nothing
reboot
check with command mode2 -d /dev/lirc0 : nothing

Test with an other remote controler : nothing.

Thank you for your patience

karan · May 30, 2016, 10:30pm

Not really sure why this is not working for you. We have used the same tutorial here to set up the IR receiver: http://alexba.in/blog/2013/01/06/setting-up-lirc-on-the-raspberrypi/. Would it be possible for you to use jumper wires to directly connect the IR receiver to the GPIO pins on the Raspberry Pi, and maybe start with a fresh noobs image to see if it works.

-Karan

ygrakes · June 10, 2016, 2:39pm

Hello
I have followed yours instructions:

reinstall with Noobs image
install lirc package
directly connect IR receiver on GPIO (RX on n°23)
modify /boot/config.txt:
# Uncomment this to enable the lirc-rpi module
dtoverlay=lirc-rpi

Uncomment this to override the defaults for the lirc-rpi module

dtparam=gpio_out_pin=16
dtparam=gpio_in_pin=23
dtparam=gpio_in_pull=down

sudo /etc/init.d/lirc stop
mode2 -d /dev/lirc0

and it works ! I see signal texts.

What do you think of the problem origin? My grovepi board has a problem?
Thank you.

karan · June 13, 2016, 1:32am

Hey ygrakes,
Great to hear that the receiver is working for you. Are you using the Grove IR receiver or something else. How are you connecting the sensor to the Raspberry Pi right now and can you add a picture of the IR receiver and the connections. Also, why do you have dtparam=gpio_out_pin=16 and isn;t there another line like dtoverlay=lirc-rpi,gpio_in_pin=15 to associate the pin with LIRC. I think the GrovePi is fine, there might be some small problems with the connections or the configurations.

-Karan

ygrakes · June 17, 2016, 12:11am

Hello
My answers :

I only try the IR receiver. No other sensor is connected on my board/raspberry. At the beginning, I have tried the temperature sensor and it works fine with GrovePi & python script example.
My test with the IR receiver directly connect on Raspberry uses the plan at the URL : http://i1.wp.com/anderson69s.com/wp-content/uploads/2015/08/rpi_ir_schema.png?resize=500%2C475 (original URL : http://anderson69s.com/2015/08/04/raspberry-pi-dupliquer-sa-telecommande-ir/)
I have contacted the person in charge of the web site above (in comments part) because I have meet some problem on my Rasbian image. This person has adviced to modify config.txt with :
dtoverlay=lirc-rpi
dtparam=gpio_out_pin=16
dtparam=gpio_in_pin=17
dtparam=gpio_in_pull=down

but the IN PIN wasn’t correct. I have tried with 23 port number and it worked.

Thank you

karan · June 17, 2016, 3:43am

Hi ygrakes,
Great to hear that the IR receiver is working for you. I did have a look at the link that you had mentioned above and it does look like you are directly connecting the IR receiver to the GPIO pins. The GrovePi has a RPISER port which is directly connected to the Serial GPIO’s on the Pi and should allow you to directly use the sensor without using jumpers if you want to switch to using that. The only other big difference that I found was the dtparam=gpio_in_pull=down parameter. We have not been using this too.

Great to hear that it worked for you. Do let us know more about the project that you are building with it.

-Karan