HiLetgo Wireless Bluetooth Transceiver Support Review

I purchased this unit to add Bluetooth connectivity to my existing laser engraver. For that it works fine. The documentation was a little skimpy as some of them come with different firmware versions, but overall they work as advertised.

Both worked when I started using them but one died after a few days. I used the 5V digital data from the Nano, my bad I thought the Nano had 3.3 volt outputs. The other worked fine after I put a logic level control between the Nano and HC-06. Get some logic level conversions if you use 5V outputs like Nano or Uno.

I managed to run it with the board but no matter what I do with it it won't let me into AT commands. I did this with both chips and my buddy who also ordered the same chips entered AT commands with the same setup and code. I'm pretty sure the two I have are crap. Don't trust everything you buy from Revain.

This gives good range and works great! Keep in mind that you need to send several AT commands to set it up. I've used it to set up a flying quadcopter so I have no complaints.

I bought two of these devices and BOTH don't work: (One is totally dead. And the second one doesn't transmit. (Can only receive) I have another one of the same kind and they work fine.