Utilizing functions of Sim800l module beyond calls and sms using any Atmega32u4/Atmega328p board and Nokia 5110 (PCD8544) display
Features:
- Request a text file from a URL and display the result on screen (support both Http and Https)
- Show network operator info (name, signal strength, network date & network time)
- Show your approximate location a.k.a LBS information (date, time, latitude, and longitude). Please note that the date and time are based on GMT time
- Save (to eeprom) and retrive last saved location info (date, time, latitude, and longitude)
- Upload your location info to a JSON server (jsonbin.io) including:
- Google Maps link of your location
- GMT date and time of the upload entry
- Scheduled location uploads (every 6 hours by default)
- Show weather info of your current location (using OpenWeatherMap API & LBS) including:
- Current temperature + Min & Max temp (in Celsius)
- Humitiy level (in percentage)
- Wind speed (in Meters per Second)
- Serial debugging a.k.a. SerialPassthrough (Atmega32u4 version only)
- Autosleep when idle after a specific time period (30 senconds by default)
- Advanced sleep & wake up functions to minimize power consumption during sleep
- Simple menu to navigate (Nokia Style)
- Optimized SRAM usage (more than 50% is available for local variables)
- Backlight control
Future features:
- FM radio tuner?
Two external libraries are required: "Adafruit_GFX" and "Adafruit_PCD8544"
Needed hardware:
- Arduino Leonardo/Micro/Pro Micro compatible board (Atmega32u4) or Arduino Pro Mini (Atmega328p)
- Sim800l GSM breakout board (5v tolerant)
- Sim card with data plan
- Nokia 3310/5110 LCD (PCD8544)
- Solderless breadboard
- 3 Push buttons
- Jump wires
- Optional: NPN transistor and a resistor to control GND pin of the Sim800l module (to save power)
