esp8266

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/19821/charts/1?&results=200&dynamic=true"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/19821/maps/channel_show"></iframe>

<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/19821/status/recent"></iframe>