📡 Bluetooth UART Wireless Module: Dual Mode, SPP2.0 and BLE4.2 Support, Arduino Compatible with BQB and Rohs Certificates Review

FIX: Downgraded from 3 stars to 2 stars due to missing Android app "ELET BLE” (for OTA update) mentioned in the documentation. Not in the Play Store, not via an internet search. ORIGINAL: The module itself looks solid, but the documentation is not optimal. The device does not come with a label or sticker or anything to indicate where documents can be obtained. Web searches yield nothing. Finally, you can go to Revain QnA and find that there is a link to a Baidu network drive, but it has its own

Works well with Arduino and BlueDisplay Android app, set baud rate to 115200, connect rx, tx, 5v, Gnd and reset. Module Rx goes to Tx Arduino and Tx of the module goes to Rx Arduino for those new to this type of communication.1. Connect the module as above.2. Install bluedisplay in the arduino.3 library. Select the flickering sketch from the bluedisplay.4 samples. Set the speed to 115200, comment out 9600.5. Upload to arduino.6. With the BLE module enabled, install the Bluedisplay app and then…

UPDATE: Downgraded from 3 stars to 2 stars due to lack of "ELET BLE” (for OTA update) Android app mentioned in the documentation. Not in the Play Store, not via an internet search. ORIGINAL: The module itself looks solid, but the documentation is not optimal. The device does not come with a label or sticker or anything to indicate where documents can be obtained. Web searches yield nothing. Finally, you can go to Revain QnA and find that there is a link to a Baidu network drive, but it has its…

Testing the found module works fine, but programming and integration took a long time due to bad and missing documentation. No data sheet available. The voltage on the Rx/Tx pins is ambiguous; Do you need a logic level converter or not? Direct document upload is not available; You need to register on the remote sketch site and provide personal information (phone number). I had to scan the technical document after translating it from Chinese. The document was a bit helpful but lacked depth.