Comments on: RFM12B linking a JeeNode Micro with a Raspberry Pi

By: cristian

cristian — Wed, 30 Mar 2016 19:32:53 +0000

pi@raspberrypi:~/rfm12b-linux $ make
make -C /lib/modules/4.1.19+/build M=/home/pi/rfm12b-linux modules
make[1]: *** /lib/modules/4.1.19+/build: No such file or directory. Stop.
Makefile:30: recipe for target ‘all’ failed
make: *** [all] Error 2

I did everything like it was supposed to be! i compiled even the hello world example, but I can not still compile the driver! please help!!!

By: gareth

gareth — Mon, 11 May 2015 08:11:39 +0000

Hey – that’s really good work and very useful – thanks so much!

The power of open source – other people help fix your bugs – love it!!

By: Huno

Huno — Fri, 08 May 2015 05:29:49 +0000

Hi Gareth,

I found this website… http://www.qdh.org.uk/wordpress/2015/04/21/rfm12b-linux-on-the-raspberry-pi-b2-gpio_base/

But repository from https://github.com/klattimer/rfm12b-linux not working
Now i using this https://github.com/gkaindl/rfm12b-linux an change:

in this file /platform/plat_raspberrypi.h line 81

u32* gpio = ioremap(0x20200000, SZ_16K);
to:
u32* gpio = ioremap(0x3f200000, SZ_16K);

and now i can receive data from my node´s with the raspberry pi 2

sorry for my english, best regards from austria 😉

By: huno

huno — Thu, 19 Feb 2015 15:45:05 +0000

Hi Gareth,

first of all… nice work. I have now successfully compile the module but the same issue.

The module loads but nothin in /dev/rfm12b*. 🙁

By: gareth

gareth — Wed, 18 Feb 2015 17:28:10 +0000

Yes - I've been trying to get it working on the pi 2 myself over the last couple of days. See this post for how to get kernel headers installed - but I get errors in dmesg after the module loads and nothing in /dev/rfm12b*. Still working on it - I'll let you know if and when I find a solution!

By: huno

huno — Wed, 18 Feb 2015 15:30:12 +0000

does not work with the new Raspberry Pi 2 version 🙁

after
echo -e “kernel=vmlinuz-3.10-3-rpi\ninitramfs initrd.img-3.10-3-rpi followkernel” | sudo tee -a /boot/config.txt

the board hangs and does not boot up again.

with windows i edited the config.txt and the rpi working up again.

can anybody help me plz? I need the rfm12 driver.

By: gareth

gareth — Thu, 15 May 2014 10:20:08 +0000

Yes, the board arrived and worked perfectly! I would recommend them to those who want a bare-bones cheap and simple solution to interfacing with the rfm12b. However I’m also interested int the rfm69 which is compatible but increases the range and adds some more modes.

By: Mauro

Mauro — Mon, 21 Apr 2014 14:04:59 +0000

Hi,
has the board arrived ?
Have you done something with it ?

Thanx
Mauro

By: Reading multiple sensors with rfm12b_linux and node-red | layer zero labs

Reading multiple sensors with rfm12b_linux and node-red | layer zero labs — Sat, 29 Mar 2014 16:15:25 +0000

[…] post follows on from this one where Gareth explains how to use an RFM12b module with an RPi. To recap, the RFM12b module is a […]

By: gareth

gareth — Thu, 06 Mar 2014 13:35:06 +0000

Sorry for the delay Mico, I understand what you’re trying to do now!

I’ve just ordered one of these RFM12B modules from ebay: http://www.ebay.co.uk/itm/Raspberrypi-RFM12B-module-SPI-interface-868Mhz-/141193688562.

This looks to be about the cheapest way to use the RFM12b directly on the Pi – without having to pay for the usb interface and memory that the jeelink provides.

The Alpha board doesn’t supply any logic, and neither does this board much, a couple of caps perhaps for decoupling as the RFM12b module speaks SPI as does the Pi (on the GPIO pins.

I’ll post a page here once it has arrived and I either can or can’t get it working – and the new wireless system is ready to be released.

Let me know if this helps and good luck with your projects!