Debugging the RS485/Raspi

LED is glowing, “flashing” (getting dark shortly) every second, as the weather station sends data every second

We've connected the logic analyzer after the sferalabs board. Data comes in, all fine.

…and can be decoded.

However,

When I connect to it, it shows no data.

screen /dev/ttyAMA0 19200

(baud rate taken from the data sheet)

Bluetooth is disabled:

$ cat /etc/modprobe.d/raspi-blacklist.conf
blacklist btbcm
blacklist hci_uart

Raspberry Pi, model 3 B

uname -a
Linux raspberrypi 4.4.9-v7+ #884 SMP Fri May 6 17:28:59 BST 2016 armv7l GNU/Linux

Weather station is the basic Elsner P03 without modbus.

Update 24. Nov 16, 14:15

Can you please add this to /boot/config.txt
dtoverlay=pi3-disable-bt
Also, from the command line:
sudo systemctl disable hciuart
then reboot and try again?

Didn't work. Yet.

But I stumbled upon this:

$ cat /boot/config.txt
enable_uart=0

Setting this to enable_uart=1 did the trick.

WOOHOO! \o/

sfera.txt · Last modified: 2016/11/24 14:20 by claude

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Debugging the RS485/Raspi

However,

Update 24. Nov 16, 14:15