Ever wanted to remotely monitor/log power usage of your electronic appliances? Well now you can with this DIY, 3D printable monitor.
As well as the 3D printable parts available from thingiverse, you will need the following:
- D1 Mini
https://www.banggood.com/D1-Mini-NodeMcu-Lua-WIFI-ESP8266-Development-Board-p-1044858.html?p=KF2715792233201409DJ&custlinkid=89596 - INA219 Power Monitor Sensor
https://www.banggood.com/custlink/K3m3ttRLec
- Mini Rocker Switch
https://www.banggood.com/custlink/KG3KPHyoj
Simply connect the parts as shown in the schematic below, solder the switch in place after assembly within the 3D printable housing.
Note: To allow use of the sleep mode you will also need to solder a connection between the RST and D0 pins of the D1 mini.
Download and install the Blynk app, use the following QR code to get your own copy of the power monitor app.
Configure the Arduino sketch for your own WiFi SSID and password as well as your unique Blynk autherntication token.
The latest Arduino sketch can be found here. Further details can be found at instructables.