SX1276 LoRa Radio Wireless 862-930MHz 915MHz UART Serial Module Transmitter Receiver + 915Mhz 3dBi SMA Antenna, Compatible with Arduino STM32 51 Single Chip Microcomputer

If you know what you’re doing you can get every bit of the advertised range and then some. Using two of these I was sending my own version of text messaging over two miles apart, never skipped a beat. I was so impressed I ordered the 30db version too.

As described

I am giving this 3 stars because I have no idea if it works or not.Seems to be useless communicating with an ESP32 915mhz sx1276 Lora board (the Heltec one). Tried their one example and the default Radiohead, and LMIC. I cannot find a sketch for this antenna to use with Lora.h. Also tried to mod sketches to use a matching preamble, spread,bandwidth, text power, freq, all no go. I tried this as both the server and the client.There’s no support. Unless all your radios are the same, or they improve their customer support other than replying - "read the manual", which i did and still get get to work... I wouldn’t bother wasting your time.

3.3v Rx and Tx logic only but will accept 5v on VCC though. I used mine with M0, M1 for dynamic mode switching and AUX pin to wake up my controller for battery save. Everything works as it should. Distance isnt quite as listed but i expected that.

I'm looking at the E32-915T20D user manual v1.6 from EBYTE dated 2020-40-13. This should be the controlling documentation for this module used in the Gowoops radio. I'm a professional engineer quite familiar with technical data sheets. To say that this is 'a joke' is to lend a possibility of pleasure where none should appear.On page 15 in the section 7.5 Parameter Setting Command it gives Air Data Rates (bps) from 0.3k to 19.2k. These correspond to nothing in any LoRa standard but in fact are just common UART data rates. This unit is useless unless someone can provide accurate information on its configuration.

From the website link provided: "The power supply can be 3,3v or 5V and the serial communication is TTL can be 5V. This means that it can be done in a secure connection with Arduino boards and other 3,3v as esp8266."From the User Manual for a E32-915T20D: "Please check the power supply source, ensure its 2.0V - 3.6V, voltage higher than 3.6V will damage the module."Yeah, so Im pretty sure I burned it up connecting to 5V.