@junhua Hi, I also checked this firmware. However, when I send at+sleep the chip responds OK, and when I send again any character to wake up, the radio responses me ERROR, instead of at+recv=8,0,0. Besides, when I put it on sleep mode, I don't need to wake up the module to send a new package. Could you help me with that?
I am also curious about the fault on the converter-board. I received it yesterday, integrated it into my working setup and noticed the software-reset was not working anymore, i had to reset by hand on the board to get it to work.
Also something got hot so i already stopped using it.
I am interested to know what has to be changed to make it work..
hi, the port is to define a specific application with your gateway or network server, for example port 2 ,is used to follow a format to send the sensor, battry, gps infos etc. So your can define your application with the same port . and if there is a downlink control data from network server to your device (module), it can also use the same port .
To update the firmware you'll need to power the module, so VCC and GND. And UART1_TX and UART1_RX to the RX and TX of your USB to serial converter (make sure this is 3.3v, not 5v. I use a 3.3v FTDI cable). Connect BOOT0 to VCC for programming, and GND for normal operation.