Brian Winters
New member
Hi all,
So I ordered the complete HM kit with TC and the Rpi from the heatermeter store. I received it on Thursday and was so excited I stayed up till 2am putting it all together in the hopes of using it this weekend. As of last night, I couldn't get it to work - I had typed up an epic post with all of my steps to ask for help, but while waiting for the mod to approve my account, I believe I resolved the issue. (maybe)
The raspberry PI would not boot with the openwrt-brcm2708-sdcard-vfat-ext4.img – with or without the heatermeter board attached. It worked fine with raspbian and openelec, so I believed the issue to be the WRT image. While researching that, I stumbled upon this post on the openwrt issue list https://dev.openwrt.org/ticket/14955 which suggested that I need to replace the bootcode.bin and start.elf file on the SD card for "newer pi's". I did this and suddenly it was working - still no HDMI output, but I get an IP and can manage the HM from the web interface. Everything appears to be working in the app, but my probes do not read any temperature. I planned to reuse the probes from my maverick wireless redi-check unit, but my suspicion now is that they are not compatible.
Question: Did replacing the bootcode.bin and start.elf files cause anything in linkmeter to not work? Could that be the issue with the probes not being recognized, or is it something else - like my probes or my soldering job?
Also, if we do indeed need to update the files for the newest pi's, I used the ones from here https://github.com/raspberrypi/firmware/tree/master/boot. I would be happy to do a PR or something if there is any way I can help.
Also also, just a quick thanks to Bryan and everyone here, I had a ton of fun putting my heatermeter together. I've spent the last month or so stalking all of your posts so I feel like we are family already. Great community, amazing project, awesome people.
-Brian
So I ordered the complete HM kit with TC and the Rpi from the heatermeter store. I received it on Thursday and was so excited I stayed up till 2am putting it all together in the hopes of using it this weekend. As of last night, I couldn't get it to work - I had typed up an epic post with all of my steps to ask for help, but while waiting for the mod to approve my account, I believe I resolved the issue. (maybe)
The raspberry PI would not boot with the openwrt-brcm2708-sdcard-vfat-ext4.img – with or without the heatermeter board attached. It worked fine with raspbian and openelec, so I believed the issue to be the WRT image. While researching that, I stumbled upon this post on the openwrt issue list https://dev.openwrt.org/ticket/14955 which suggested that I need to replace the bootcode.bin and start.elf file on the SD card for "newer pi's". I did this and suddenly it was working - still no HDMI output, but I get an IP and can manage the HM from the web interface. Everything appears to be working in the app, but my probes do not read any temperature. I planned to reuse the probes from my maverick wireless redi-check unit, but my suspicion now is that they are not compatible.
Question: Did replacing the bootcode.bin and start.elf files cause anything in linkmeter to not work? Could that be the issue with the probes not being recognized, or is it something else - like my probes or my soldering job?
Also, if we do indeed need to update the files for the newest pi's, I used the ones from here https://github.com/raspberrypi/firmware/tree/master/boot. I would be happy to do a PR or something if there is any way I can help.
Also also, just a quick thanks to Bryan and everyone here, I had a ton of fun putting my heatermeter together. I've spent the last month or so stalking all of your posts so I feel like we are family already. Great community, amazing project, awesome people.
-Brian
