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buy this
http://www.ebay.com/itm/10-x-Ultrasonic-Module-HC-SR04-Distance-Measuring-Transducer-Sensor-for-Arduino-/130705106799?pt=LH_DefaultDomain_0&hash=item1e6ea1a76f
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### Elegoo UNO R3 EL-KIT-012
![img](https://images-na.ssl-images-amazon.com/images/I/81ynLI7lvcL._SX679_.jpg)
### [Montaje](https://www.youtube.com/watch?v=W1UmNt9NcNE)
### Notas
- 1pcs UNO …
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Hi your implementation works great except that it fills the heap.
I'm using your library in a while loop and if I check the memory it uses all the heap and breakdown after 30 minutes
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https://github.com/cornellhyperloop/electrical/blob/master/State_Estimation/src/statemachine.cpp
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**Describe the problem you have/What new integration you would like**
I would like to have temperature in ultrasonic distance sensor code for better precision.
I have done a little research a…
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Hi @eliotlim
I setup my arduino and ultrasonic range sensor, publishing sensor_msgs/Range message, my range message are correct.
However, when I launch the node, the topic "/sensor_pointcloud_nod…
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I am trying to replicate this [onion focaccia](https://github.com/jcallaghan/recipes/issues/45) recipe. I'm going to try using a sourdough so I need a [starter](https://github.com/jcallaghan/recipes/i…
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Use this : https://www.bananarobotics.com/shop/US-100-Ultrasonic-Distance-Sensor-Module
And also measure temp in garage.
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Collect and analyze the data from the Ultrasonic Sensor:
- Set up notifications from IFTTT, when something is wrong (e.g. not enough water in the bucket)
- Probably do the same thing with other se…
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I am using the following code, but I can not see the image. Please help me where I am doing wrong.
Information such as "obstacle_distance" and "ultrasonic" comes up but the image does not come.
…