Hi Eric!
I guess you mean ESP8266. You'll not need to customize the BBB. Just
connect an Esp module to the BBB headers and use a serial port for
communication. The pins depend on the serial port in use. I recommend
UART-4. The following commands work on a 'bone' kernel supporting the
capemgr:
Activate and initiate the serial port by
sudo su
echo BB-UART4 > /sys/devices/platform/bone_capemgr/slots
exit
stty -F /dev/ttyS4 115200 raw -echo
Wire the module
- ESP GND -> BBB P9_01 (ground)
- ESP VDD -> BBB P9_03 (3V3)
- ESP EN -> BBB P9_03 (3V3, only some modules like Esp-12e)
- ESP TXD -> BBB P9_11 (UART-4 RX)
- ESP RXD -> BBB P9_13 (UART-4 TX)
Then you can send data to the Esp
echo $'AT\r' > /dev/ttyS4
And receive data by
cat /dev/ttyS4
It's more convenient to use tools like nodempu-uploader.py
<https://github.com/kmpm/nodemcu-uploader> to communicate (option
-terminal) or load files to the Esp file system.
To upload firmware use esptool.py
<https://github.com/themadinventor/esptool>.
Good luck!
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