Finally, I succeeded to make the weewx running and capturing AS3935 lightning detector data
For that, I had to force the detection of the i2c addresses from 0x03 to 0x77 instead of 0x08 to 0x77 with the command: sudo i2cdetect -a -y 1 0x03 0x77 I had also to add gpio to weewx group: sudo usermod -a -G gpio weewx PYB Le vendredi 16 février 2024 à 21:30:08 UTC+1, Pierre-Yves a écrit : > Hello All, > > Maybe a bit off-topic. But just in case someone would have faced to this > strange behavior of a Raspberry i2c address map. > > > Rpi4-1: usual address map from 0x03 to 7x76. > Config.: > Weewx 4.10.2, > Bresser 7in1, > sdr driver, > RTC clock (UU), > BME280 (0x76) (pressure, temperature, humidity) > AS3935 (0x03) (lightning detector) > > Weewx on Rpi4-1 running without any error. > > pi@weewx:~ $ sudo i2cdetect -y 1 > 0 1 2 3 4 5 6 7 8 9 a b c d e f > 00: 03 -- -- -- -- -- -- -- -- -- -- -- -- > 10: -- -- -- -- -- -- -- -- -- -- 1a -- -- -- -- -- > 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 60: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- -- > 70: -- -- -- -- -- -- 76 -- > pi@weewx:~ $ > > Rpi4-2: "abnormal" map with addresses 0x03 to 0x07 non selectable. > Config.: > Weewx 5.0.2, > Bresser 7in1, > RTC clock (UU), > AS3935 (??) > > Weewx on Rpi4-2 failing : File "/etc/weewx/bin/user/as3935.py", line 182, > in __init__GPIO.setup(self.pin, GPIO.IN (see log below) > > pi@raspberrypi:~ $ sudo i2cdetect -y 1 > 0 1 2 3 4 5 6 7 8 9 a b c d e f > 00: -- -- -- -- -- -- -- -- > 10: -- -- -- -- -- -- -- -- -- -- 1a -- -- -- -- -- > 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 60: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- -- > 70: -- -- -- -- -- -- -- -- > pi@raspberrypi:~ $ > > Clearly, the AS3935 is not identified because the 0x03 to 0x07 address > range is not active. This AS3935 module works on the Rpi4-1 > > Any idea on where this problem of misconfiguration could come from, > firmware, kernel ? > Is there a way to reset the I2c address map ? > > Thanks, > > Pierre-Yves > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/e6f844cb-245c-412e-8e91-6c5d17e3711fn%40googlegroups.com.
