☀️ Solar Panel Monitor

A simple solar power monitoring application for the Arduino UNO Q, which uses an INA219 sensor to read data from a small 80x45mm solar panel and prints them on an e-paper display.

Notice

For Arduino UNO Q (Zephyr) applications, you need to patch #undef guards on Adafruit_EPD.h because it defines macros as #define MISO 0 (and similar), which clashes with any library that uses those names as function parameters.

at line 31 on the Adafruit_EPD.h:

#ifdef MISO
#undef MISO
#endif
#ifdef MOSI
#undef MOSI
#endif
#ifdef SCK
#undef SCK
#endif
#ifdef SS
#undef SS
#endif

Pinout

Solar Panel

Solar Panel + >> INA 219 VIN +

Solar Panel - >> BREADBOARD -

INA 219

INA 219 VIN - >> BREADBOARD +

INA 219 GND >> BREADBOARD -

INA 219 SDA >> UNO Q SDA

INA 219 SCL >> UNO Q SCL

UNO Q

UNO Q 5V >> INA 219 VCC

UNO Q GND >> BREADBOARD -

Display

SSD1681 VCC >> UNO Q 3V3

SSD1681 GND >> BREADBOARD -

SSD1681 DIN >> D11

SSD1681 CLK >> D13

SSD1681 CS >> D10

SSD1681 DC >> D9

SSD1681 RST >> D8

SSD1681 BUSY >> D7

License

Distributed under the MIT License. See LICENSE for more information.