test-network.sh

#!/bin/bash
#
# Simple script to test network connectivity, and send result to a Tasmota/ESP32 RGB Light
# !!! Please implement your own "check()" function !!!
#

HTTP_API="http://192.168.1.103/cm"
MQTT_PUB="mosquitto_pub -h broker.hivemq.com -p 8883 --capath /etc/ssl/certs/ -u username -P password -q 2"
DEV_NAME="tasmota_XXXXXX"
CMND="http" # http or mqtt

mqtt() {
  local topic=cmnd/$DEV_NAME/${1}
  local state=${2}
  $MQTT_PUB -t $topic -m $state
}

http() {
  curl -s -G $HTTP_API --data-urlencode cmnd="$1 $2" >/dev/null 2>&1
}

check() {
  curl -m 5 -sf ipinfo.io | jq -e '.country=="HK"' >/dev/null 2>&1
  return $?
}

led() {
  local color=${1^^}
  local state=${2}
  declare -A LED_COLORS=([RED]=1 [GREEN]=2 [BLUE]=3)
  $CMND POWER${LED_COLORS[$color]} $state
}

beep() {
  # buzzer <count>,<beep>,<silence>,<tune>
  local value=${1}
  $CMND buzzer $value
}

while :; do
  echo "[$(date +%FT%T)] network testing ..."
  led BLUE blink
  if check; then
    echo "[$(date +%FT%T)] network is good"
    led RED blinkoff
    led GREEN ON
  else
    echo "[$(date +%FT%T)] network is bad"
    led RED blink
    led GREEN OFF
    beep 5,2,1
  fi
  led BLUE blinkoff
  sleep 60
done

BlinkCount - Number of relay toggles (blinks) (does not control the status LED)

• 0 = blink many times before restoring power state
• 1..32000 = set number of blinks (default = 10)