simple scripts for small systems
This is a networking/cli developmental playground.
Recently a few ESP-07's showed up on my doorstep, and I figured I'd try to integrate them into my continous Sigmon experiments.
Born were these scripts, which I aim to use to create a sort of ad-hoc non-hemogenous sensor network with various functions, and an integrated control facility.
Copy all the scripts to a blank ESP's /lib directory, excluding the boot.py & main.py files. Edit default settings in the cfg.py file. Boot and enjoy.
In the cfg.py file is defined the ESPConfig object, which is instantiated in the main.py. These settings are saved by default in /etc/esp.json, and define several startup conditions:
Wifi AP/STA/Monitor, Telnet/WebREPL, MQTT, UART dupterm, GSM (Sim800L), LCD (i2c OLED). Todo: Leds (ws8211x), SD Card, GPS, NTP Time
MQTT (not working) has a few commands enabled for remote queries and commands. Still troubleshooting memory problems, even with umqtt frozen in the firmware.
There are several convienence commands added to the REPL like ls, cat, head, ifconfig, uptime, date, status, and pp (pretty print). Also importable are wget, wifiscan, and geolocate (with free google apikey).
The OLED supports basic scrolling output, thats about it. Also, the GSM support is preliminary while I work on a better UART interface, and wait for another sim card.
Incorporated are ideas and some code from various sources, including the original microtelnetserver, micropython upyphone, micropython forums, and a few other sources.
Finally the beginnings of a promiscious sniffer are in mon.py, taken from mzaklharo's fork of micropython. I've simplified the code in the callback to send just the binary packet, and can process some fields on the esp itself - but not all, and processing the same packet on pc yields variable results. Maybe endianess, but thinking of adding pcap in someway. We'll see.
Have fun.