ESP8266 to provide a webserver to control a shock collar
The core code to send to the collar is based on https://github.com/smouldery/shock-collar-control/blob/master/Arduino%20Modules/transmitter_vars.ino
I've taken this and just kludged it, and then put an ESP8266 web interface in front.
The NOTES file explains how the data needs to be sent.
A common form of shock collar is controlled via a 433Mhz signal. Some clever people reverse engineered the transmission protocol and wrote code to let an Arduino send these messages, using a 433Mhz transmitter.
I took this idea, ported it to an ESP8266 and added a simple webUI to it. So now the collar can be controlled over the network.
The transmitter has three connections; Ground, Power, Data. These can be simply connected
Transmitter ESP8266
Gnd---Gnd
Power---3.3V
Data---D0The built in antenna only has short distance; for increased range an additional antenna of about 17cm can be added.
After flashing the firmware onto the ESP8266 the device will reboot and go into "AP" mode. The AP will be something like Collar-ABCDEF (the exact name will depend on the board's MAC address). You should connect your phone or laptop to the access point.
This will let you go to http://192.168.4.1 and that will display the WiFi configuration screen. Once you enter the WiFi details it will reboot and attempt to connect to your network and get an address by DHCP. If it can't connect after 60 seconds then it will go back to AP mode so you can try again.
You can also set a name for this device (defaults to "shockcollar") and a transmission key. You only need to change these if you plan on having multiple shockduinos.
Once connected it will attempt to use mDNS to register "shockcollar.local" (or whatever name you picked). If that name doesn't work then you'll need to check your router settings to see what IP address it received.
Each shock collar and transmitter need to be paired. The instructions that came with the device should tell you how to do this; e.g. hold down the power button for 5 seconds.
To pair the collar with the shockduino, put the collar into pairing mode and then press the "Beep" button. That should be all that's needed!
To verify it works you can press the Beep button again, or the vibrate button.
Normally you don't want anyone on your network to be able to use the shockduino, so you can set a username and password. This isn't strong security, because we don't use TLS, but it's probably "good enough".
Although the device was designed to be driven from the WebUI, it is possible to access it via simple GET requests.
The base URL is http://user:pass@shockcollar.local/send/? (if
username/password are not defined then skip that part).
Next are the possible commands
vibrate=1&v_str=100&v_dur=2
shock=1&s_str=1&s_dur=1
beep=1&b_dur=1e.g.
http://user:pass@shockcollar.local/send/?vibrate=1&v_str=100&v_dur=1
http://shockcollar.local/send/?shock=1&s_str=1&s_dur=1