Hypnos

Hypnos is a hardware and software toolkit which facilitates the creation of energy-aware IoT nodes based on widely extended consumer board platforms: Arduino, LinkIt One and Particle, to mention a few.

The present repository contains the library source code which jointly works with the Hypnos Board. However, if your system already includes a reliable mechanism to obtain the remaininig battery charge, feel free to adapt the code in order to use it instead.

Usage sample (source)

#include <Hypnos.h>
#define BATTERY_MAH 1050 // Change this in accordance to your battery spec

Hypnos hypnos(BATTERY_MAH);

void setup() {
  Serial.begin(9600);
  hypnos.setMinDelayMillis(1000); // By default 1min
  hypnos.setMaxDelayMillis(10*3600*1000); // By default 12h
  hypnos.setDelayFunction(&delay);
  hypnos.init(); // Important this must go after all setter statements
}

void loop() {
  Serial.print("Ticks: ");
  Serial.print(hypnos.getConsumptionTicks());
  Serial.print(", Remaining mAh: ");
  Serial.print(hypnos.getRemainingCapacity());
  Serial.print(", Remaining %: ");
  Serial.print(hypnos.getRemainingPercentage() * 100.0);
  Serial.print(", Sleep time: ");
  Serial.println(hypnos.previewSleepTime());
  hypnos.sleep();
}

Compatibility

The board, in conjunction with this C ++ library, has been successfully tested on the following microcontroller boards:

• Arduino UNO R3
• SeeedStudio LinkIt One
• Particle Photon (via a Shield-Shield adapter)