… seen @ Mini Maker Faire Zurich 17./18. September 2016.
A very good example for a battery-powered wireless IoT-Node. Have a look to Lambda Nodes for further information.
I flashed the SONOFF Smart Switch with a special Lua application program and can control it by MQTT.
Further information in my German blog.
This ESP8266 IoT board combines built-in USB and battery charging. The ESP8266 is clocked at 80 MHz and supports 3.3 V logic.
To make it easy to use for portable projects, a connector for 3.7 V Lithium polymer batteries and built in battery charging was added.
You don’t need a battery, it will run just fine straight from the micro USB connector. But, if you do have a battery, you can take it on the go, then plug in the USB to recharge. The board will automatically switch over to USB power when its available. The board comes pre-programmed with NodeMCU Lua.
Wio Node has the most of features as Wio Link. But it is cheaper, smaller and also lighter in weight.
Easy starting at iot.seeed.cc/start.
The following images show that already little sun as today helps to recharge the LiPo accu of the solar-powered AM2315 sensor.
As you can see, for mid of May it is a little bit cold. After noon, the clouds thinned slightly and the temperature grows up. The IP camera image shows the cloudy sky.
But, the prognosis for the afternoon is not so bad. Look at the evening what happened.