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NorthernMan54 / homebridge-dht

Homebridge plugin for DHT22 Temperature / Humidity Sensors
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Segmentation fault #22

Closed toshibochan closed 5 years ago

toshibochan commented 5 years ago

I'm using pin 16. I changed the pin in dht22 file in /user/local/bin/ and run "dht22" but give: Segmentation fault

please need help

NorthernMan54 commented 5 years ago

Another user recently switch to using the adafruit library instead of the supplied dht22 binary, details are here.

https://github.com/NorthernMan54/homebridge-dht/issues/21#issuecomment-470302826

NorthernMan54 commented 5 years ago

@toshibochan I changed the package and am now using a different set of libraries for the DHT22. These may work better.

tomtastic commented 5 years ago

CXX(target) Release/obj.target/node_dht_sensor/dht-sensor.o SOLINK_MODULE(target) Release/obj.target/node_dht_sensor.node /usr/bin/ld: /usr/local/lib/libbcm2835.a(bcm2835.o): relocation R_X86_64_PC32 against symbolbcm2835_peripherals' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: nonrepresentable section on output collect2: error: ld returned 1 exit status make: *** [node_dht_sensor.target.mk:133: Release/obj.target/node_dht_sensor.node] Error 1 make: Leaving directory '/usr/lib/node_modules/homebridge-dht/node_modules/node-dht-sensor/build' gyp ERR! build error gyp ERR! stack Error: make failed with exit code: 2 gyp ERR! stack at ChildProcess.onExit (/usr/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:262:23) gyp ERR! stack at ChildProcess.emit (events.js:189:13) gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:248:12) gyp ERR! System Linux 5.0.0-11-generic gyp ERR! command "/usr/bin/node" "/usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "build" gyp ERR! cwd /usr/lib/node_modules/homebridge-dht/node_modules/node-dht-sensor gyp ERR! node -v v10.15.3 gyp ERR! node-gyp -v v3.8.0 gyp ERR! not ok npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! node-dht-sensor@0.0.34 postinstall: node-gyp build npm ERR! Exit status 1`

tomtastic commented 5 years ago

OK, new library needed compiling with -fPIC as so :

cd bcm2835
./configure CFLAGS=-fPIC CXXFLAGS=-fPIC
make
make check
make install

All good now 👍

NorthernMan54 commented 5 years ago

Is there anything special in your setup requiring this parameter? I have an RPI 3 running Raspbian and didn't need this.

NorthernMan54 commented 5 years ago

Also tks for this, I updated the Build.md doc for others

https://github.com/NorthernMan54/homebridge-dht/blob/master/Build.md#step-7-install-homebridge-dht

tomtastic commented 5 years ago

Is there anything special in your setup requiring this parameter? I have an RPI 3 running Raspbian and didn't need this.

Yes, I'm not running on a RPI currently, but use homebridge-dht to call a BASH script (for lm-sensors) for showing my NAS temperature : 

"accessory": "Dht",
            "cputemp": "/usr/local/bin/sensors_homebridge",
NorthernMan54 commented 5 years ago

Looks like my switch from using the dht22 binary to a node_js module caused you some challenges.