heiko-r

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "esp_system.h"
#include "esp_log.h"
#include "bt.h"
#include "bta_api.h"

#include "esp_gap_ble_api.h"
#include "esp_bt_main.h"

tymarbut

This flow (and associated circuits/hardware) is designed to allow Node-RED to pass messages via radio waves in the same way as it passes messages via MQTT, using commonly-available, inexpensive handheld radios and the Raspberry Pi. The flow has been tested using Baofeng, Wouxun, and Quansheng handheld ham radios. In short, the goal is to allow packet-like transmissions between Node-RED systems over miles, while keeping the hardware costs down (or free for those hams who have surplus Baofengs hanging around). This could be used for a backup to MQTT when the Wifi is unreliable, or simply as a long-distance and network-agnostic message channel.

Prerequisites: Software

First, we need PulseAudio to make and receive sounds with our USB soundcard:

sudo apt-get install pulseaudio -y

waifung0207

<VirtualHost *:80>
	ServerName example.com
	ServerAlias www.example.com

	# force HTTPS
	RewriteEngine on
	RewriteCond %{HTTPS} off
	RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]
</VirtualHost>