ESP32 Development Board WiFi+Bluetooth Ultra-Low Power Consumption Dual Cores ESP-32 ESP-32S Board can be ordered at SmartArduino. I ordered today.
There is a Lua firmware for this device at Github. Will this be the next chapter of the Lua story on Espressif microcontrollers?
… 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.
Now, after two weeks of vacation, the sensors were in operation from 2016-05-17 until now and the battery condition is very well. This means an uninterrupted run time of 28 days until now.
You can follow the status of this IoT Node at www.ckuehnel.ch/AM2315@NodeMCU.html. Here is a screen shot of today’s results.
To build an autonome weather station I started a test with a solar-powered AM2315 Sensor. The data are uploaded to Thingspeak.com and are presented over an own website.
To reduce the power consumption of my IoT button it must go into sleep mode after sending its message. I measured a current consumption of about 100 μA in sleep mode w/o any hardware changes. To get further reduction of current consumption you can remove the LED at pin D0 (GPIO16), for example.
