Why is my sensor not responding or not responding as expected in BirdBlox?

1. Check your sensor connection. Is the sensor plugged in correctly and securely? Are you using your sensor to activate a servo? If so, does your Hummingbird Bit have power from a battery pack or A/C adapter? Watch the first video below to double check your sensor connection.
2. Make sure your micro:bit is plugged in securely.
3. Check the orientation of the micro:bit. If your micro:bit is plugged into the Hummingbird Bit upside down (the micro:bit screen facing downwards), your components will not work. 
4. Make sure the Hummingbird Bit is still connected with a Bit Display test. A Bit Display test will help you quickly determine if there is a bluetooth connection between the Hummingbird Bit and your tablet or smartphone. 
5. Double check your sensor value. It is helpful to know what number your sensor is generating. Often, the code will be correct and the sensor will be returning a value, but that sensor value is not always intuitive. For instance, a project that uses the sound sensor may appear to behave erratically when tested in a loud room, or a project that uses a light sensor may behave differently on opposite sides of the room due to changes in the light level. Watch the second video below to see what number your sensor is generating.
6. Double check your sensor code. In most cases, the issue can be solved through the code. To test your sensor with accurate code, plug an LED into LED port 1 and a light sensor into sensor port 1, adjust your sensor block and sensor threshold (see step 5), and then copy this BirdBlox program. Watch the third video below to check your sensor code.
7. Check the device pull down menu. You may be looking at the wrong set of blocks. There are 3 pull-down menus, each menu dedicated to one of the 3 devices that BirdBlox can control: Hummingbird Bit, Hummingbird Duo, and the micro:bit. If your blocks are greyed out, it is possible that you are working with blocks that do not match your device. Make sure that you are pulling blocks from the menu that matches your device. 
8. If you have done steps 1-7 and the sensor is still not responding, you may be dealing with a broken sensor or a broken sensor port on your Hummingbird Bit. Try the sensor on another port (be sure to update your code to reflect the new port number).  

• If the sensor reacts, the issue is with the Hummingbird sensor port. 
• If the sensor does not react, switch it out with a different sensor. If the new sensor reacts, your first sensor was broken. Watch the fourth video below to see reasons why the servo motor may be broken.
• If needed, new components can be ordered from our store.

Watch this video to check your sensor connection:

Watch this video to see what number your sensor is generating:

Watch this video to double check your sensor code:

Watch this video to see why your sensor may not be working properly: