This page documents software for the Ebyte e32 Lora module that runs on the Raspberry Pi which can be found in this github repo. See below for software installation.
Wire up the Ebyte e32 Lora Module to the Raspberry Pi first. Then check out the other resources listed below:
- Wiring and Pi Configuration
- Running as a Service
- Using Sockets
- Client Example using Sockets
- Transfer Files
Before you install the
e32 program be sure to have completed the Wiring and Pi Configuration. These instructions are to be run on your Raspberry Pi. Download e32. See instructions below.
wget https://lloydrochester.com/code/e32-1.10.0.tar.gz tar zxf .tar.gz cd ./configure make sudo make install e32 --help # this should show the help of the tool that was installed
The C project will build a command line tool that also runs as a Unix Systemd Service which you can interface with using sockets. Below are the options. Note, there are many ways to send and receive data.
$ e32 -h Usage: e32 [OPTIONS] Version 1.10.0 A command line tool to transmit and receive data from the EByte e32 LORA Module. If this tool is run without options the e32 will transmit what is sent from the keyboard - stdin and will output what is received to stdout. Hit return to send the message. To test a connection between two e32 boards run a e32 -s on both to ensure status information is correct and matching. Once the status is deemed compatible on both e32 modules then run e32 without options on both. On the first type something and hit enter, which will transmit from one e32 to the other and you should see this message show up on second e32. OPTIONS: -h --help Print help -r --reset SW Reset -t --test Perform a test -v --verbose Verbose Output -s --status Get status model, frequency, address, channel, data rate, baud, parity and transmit power. -w --write-settings HEX Write settings from HEX. see datasheet for these 6 bytes. Example: -w C000001A1744. For the form XXYYYY1AZZ44. If XX=C0 parameters are saved to e32's EEPROM, if XX=C2 settings will be lost on power cycle. The address is represented by YYYY and the channel is represented by ZZ. -y --tty The UART to use. Defaults to /dev/serial0 the soft link -m --mode MODE Set mode to normal, wake-up, power-save or sleep. --m0 GPIO M0 Pin for output  --m1 GPIO M1 Pin for output  --aux GPIO Aux Pin for input interrupt  --in-file FILENAME Transmit a file --out-file FILENAME Write received output to a file -x --sock-unix-data FILE Send and receive data from a Unix Domain Socket -c --sock-unix-ctrl FILE Change and Read settings from a Unix Domain Socket -d --daemon Run as a Daemon
Once the wiring is complete we can get the status of the module. This should be the first verification step. If you cannot get the status nothing else will work.
$ e32 --status Version Raw Value: 0xc3450d14 Frequency: 868 MHz Version: 13 Features: 0x14 Settings Raw Value: 0xc0010f1a1744 Power Down Save: Save parameters on power down Address: 0x010f Parity: 8N1 UART Baud Rate: 9600 bps Air Data Rate: 2400 bps Channel: 23 Frequency 433 MHz Transmission Mode: Fixed IO Drive: TXD and AUX push-pull output, RXD pull-up input Wireless Wakeup Time: 250 ms Forward Error Correction: on TX Power: 30 dBm
Transmitting Data from Standard Input
We can type directly into the
e32 and send what we type by hitting enter.
$ e32 waiting for input from terminal I am typing, when I hit enter this line will be transmitted over the air ^C
Changing e32 settings
We can use the
-w HEX option to change settings. For example we could save the settings by doing a
e32 -w C000001A1744. See the datasheet for each of these options. For the form
XX=C0 parameters are saved to e32’s EEPROM, if
XX=C2 settings will be lost on power cycle. The address is represented by
YYYY and the channel is represented by
#lora #wireless #ebyte-e32-lora