Debugging the RS485/Raspi [Scratchbook]

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====== Debugging the RS485/Raspi ====== {{::img_20161124_100617.jpg?nolink&800|}} * LED is glowing, "flashing" (getting dark shortly) every second, as the weather station sends data every second {{:img_20161124_100600.jpg?nolink&800|}} * We've connected the logic analyzer after the sferalabs board. Data comes in, all fine. {{::logic-analyzer.png?direct&1200|}} ...and can be decoded. ===== However, ===== When I connect to it, it shows no data. <code>screen /dev/ttyAMA0 19200</code> (baud rate taken from the data sheet) Bluetooth is disabled: <code> $ cat /etc/modprobe.d/raspi-blacklist.conf blacklist btbcm blacklist hci_uart </code> Raspberry Pi, model 3 B <code> uname -a Linux raspberrypi 4.4.9-v7+ #884 SMP Fri May 6 17:28:59 BST 2016 armv7l GNU/Linux </code>

sfera.1479980116.txt · Last modified: 2016/11/24 10:35 by claude

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