Digital Temperature and Humidity sensor SEN0148 stopped working
Semmelinkc 2017-08-23 07:41:28 2562 Views2 Replies Hi,
I bought a Digital Temperature and Humidity sensor SEN0148 and initially wired it up incorrectly because the instructions from my local re-seller was incorrect.
After following the datasheet I got it working fine, without a pullup resistor, even though I could not see one factory fitted on the probe itself.
In anycase, recently I plugged it in again and it suddenly stopped working. Just when I was going to deploy it in the open wild.
I have only used the probe indoors and for about 10 hours of operation in total. Basically I am getting negative values back, which in the standard library SHT1x means that there is a communication failure.
I can not understand what I did to break the sensor and would appreciate help so at least I do not do it again. Can anyone tell me if wiring the sensor wrong would have damaged it? For example sending 5V into all inputs?
After trying my own debugging I have concluded that all wiring is fine. I am not sure but I guess the only problem I can see is that the DATA pin measures 0V when measuring between VCC and DATA, where I get a 5V connection between all other pins. I have also tried coupling a 10K resistor between DATA and VCC with no avail.
The product, library and sample code:
https://www.dfrobot.com/wiki/index.php/ ... U:SEN0148)
Arduino IDE: 1.8.0
Chris2
I bought a Digital Temperature and Humidity sensor SEN0148 and initially wired it up incorrectly because the instructions from my local re-seller was incorrect.
After following the datasheet I got it working fine, without a pullup resistor, even though I could not see one factory fitted on the probe itself.
In anycase, recently I plugged it in again and it suddenly stopped working. Just when I was going to deploy it in the open wild.
I have only used the probe indoors and for about 10 hours of operation in total. Basically I am getting negative values back, which in the standard library SHT1x means that there is a communication failure.
I can not understand what I did to break the sensor and would appreciate help so at least I do not do it again. Can anyone tell me if wiring the sensor wrong would have damaged it? For example sending 5V into all inputs?
After trying my own debugging I have concluded that all wiring is fine. I am not sure but I guess the only problem I can see is that the DATA pin measures 0V when measuring between VCC and DATA, where I get a 5V connection between all other pins. I have also tried coupling a 10K resistor between DATA and VCC with no avail.
The product, library and sample code:
https://www.dfrobot.com/wiki/index.php/ ... U:SEN0148)
Arduino IDE: 1.8.0
Chris2
2017-08-27 03:00:46 Hi,
When the initial wiring did not work, I basically switched it all around. So I possibly did every combination, never exceeding 5V however.
The sensor worked fine before the pullup resistor, and yes I did try with pullup resistor afterwards but still with no luck. Semmelinkc
When the initial wiring did not work, I basically switched it all around. So I possibly did every combination, never exceeding 5V however.
The sensor worked fine before the pullup resistor, and yes I did try with pullup resistor afterwards but still with no luck.
Semmelinkc 2017-08-25 01:03:40 What wrong wiring did you do? and you said no matter if you add the pullup resistor, the sensor is stop working, right? robert.chen
robert.chen 