Arduino

My next addition to previous projects Battery Powered Wifi IoT - Temperature, Humidity & Soil Moisture Sensors and Battery Powered ESP8266 IoT & Temperature Sensor is to make wifi configuration smooth and fast.

My new project consists of HW with cost under 20€. It is able to accurately measure electric power consumption and sends data via WiFi. Great source of knowledge is openenergymonitor.org which includes also Arduino library.

Programming ATtiny micro-controller is quite easy if you have all the needed information in one place. That is the reason to put all needed files, hints in one post so next time I will need it, there is no need to google it again from various sources. At the same time I hope, this post will be useful also to someone else trying to program ATtiny13A.

Wiring Arduino Uno with ATtiny13A

There is quite uses full post describing the wiring of arduino UNO with ATtiny13A. LED with resistor is added to test the basic blink test from Arduino IDE.

I have read several forums regarding the disconnecting the Arduino power from the Lithium Ion battery by itself (measuring the battery voltage and when the low limit is reached the Arduino signal turns off itself).