SunShareESP8266Client

Client application that accesses the SunShareAPI to display inverter data.

D1 = SCL
D2 = SDA

Parts

ID	Description
LED1	High gain indicator LED
LED2	Error / message LED
KEY1	Switch that toggles through different display modes
OLED1	128x64 px OLED I2C screen
R1	10kΩ pull-down resistor for KEY1
R2	Current limiting resistor for LED1
R3	Current limiting resistor for LED2
WEMOS	WEMOS D1 Mini board with an ESP8266 chip (v. 12)

Code setup

1. Create a file named credentials.h inside the include/ folder.
2. Expose your wifi credentials in the following manner:

#if !defined(CREDS_H)
#define CREDS_H

char *ssid = "YOUR_WIFI_SSID";
char *password = "YOUR_WIFI_PASSWORD";

#endif // CREDS_H

3. Adjust the API-Endpoint inside main.cpp to the address where your SunShareAPI is running (e.g replace rpi2-node-1 with an ip address of your choice):

InverterDataProvider data_provider("http://rpi2-node-1/inverter-data");

Display modes

With the KEY1 button, mentioned above, it's possible to switch through different display modes. The default display mode (MODE1) shows the current battery level, yield and the power consumption.

• MODE1: Battery level / yield / power consumption
• MODE2: Large battery icon
• MODE3: Age of the dataset that is displayed (timestamp)

More content (incl. pictures) coming soon...

Visual prototype

• Left: Normal state
• Center: High gain
• Right: Error