I'm having issues with my CodeRover core and Micro:Bit. The CodeRover works using the remote control. When we put a micro:bit in, it would flash the +5v and 3.3v indicators on the core then go completely dead. The first micro:bit got so hot it burned my finger enough to blister while pulling it out. I'm glad I pulled it and not my kid. I assumed we had a bad micro:bit, so I ordered another. After waiting for it to come in the mail, i paired the new one first using just usb power. It paired with the tablet and was working. I shut it off and plugged it into the CodeRover core and the same thing happened. I should have checked voltage on the core before attempting another micro:bit, because it’s putting out over 7v where it should be 3v for the micro:bit. I checked voltage with the CodeBit plugged in, because that is working. I then checked with the micro:bit plugged back in and I’m seeing 4.6v for a second or two before it shuts off completely. I’m pretty sure both of the micro:bits are fried… they won't power on outside of the CodeRover with usb power. Is anyone else having issues like this?
Hi Jesse,
We understand your frustration with the issues you've encountered with the CodeRover core and Micro:Bit, and we appreciate your patience as we've reviewed the situation. Based on our assessment, we believe the problem may be due to one of two factors:
MOSFET Damage: The MOSFET in the Core is crucial for adapting the power output to different devices. It's possible that this component was compromised, perhaps due to static electricity during assembly or from a short circuit. This could lead to improper voltage regulation and might explain the over-voltage scenario you experienced.
Short Circuit with the First Micro:Bit: If the first Micro:Bit had a short circuit, it could have potentially damaged the MOSFET in the Core. This might account for the voltage regulation issues when you connected the second Micro:Bit. The signs you noted, such as the 3V and 5V LEDs turning off, typically indicate a short circuit.
To help resolve this issue, we are sending you a replacement Core. While these scenarios represent our best understanding of the potential causes, they are not definitive diagnoses. Electronic devices can be affected by a variety of factors, and it's challenging to pinpoint a single cause without examining the devices in person.
We hope this replacement will ensure a better experience with our products going forward. Should you have any further questions or need assistance, please don't hesitate to reach out.
Thank you for your understanding and for bringing this matter to our attention. Best, Tony