iCave

Web Interface for your Cave.

This is proof of concept, there is many things To Do (TODO.md).

See Changelog (CHANGELOG.md) for info about latest changes.

Preview

Features

• Logging data to SD Card (See iCave::Manager::loop(), sample data)
• Temperature measurement
• Humidity measurement
• GPS
  • Location
  • Speed
  • Altitude
• Luminosity
• TFT Display UI
• Serial Output
• Power
  • USB
  • Battery
  • Laboratory voltage source

Structure

• app
• CHANGELOG.md
• README.md
• TODO.md

Prerequisites

Not everything is needed, see configuration file.

Libraries

Not everything is needed, see configuration file.

• Adafruit CC3000

  Library for the Adafruit CC3000 WiFi Breakouts etc.

• Adafruit GFX

  Graphics library for all our displays, providing a common set of graphics primitives (points, lines, circles, etc.)

• ArduinoJson

  An elegant and efficient JSON library for embedded systems.

• RC522

  Arduino library for MFRC522 and other RFID RC522 based modules.

• Snooze

  Low Power Teensy 3.x library.

• TFT_ILI9340

  A hyper fast SPI driver for Ilitek ILI9340 TFT 2.2" displays Features: - Very FAST!, expecially with Teensy 3.x where uses native SPI.

• TSL2561

  Library for the TSL2561 digital luminosity (light) sensors.

Hardware

Not everything is needed, see configuration file.

• Teensy 3.1 (~ $20)

  Teensy 3.1 is a small, breadboard-friendly development which brings a low-cost 32 bit ARM Cortex-M4 platform to hobbyists, students and engineers, using an adapted version of the Arduino IDE.

  • Processor: MK20DX256VLH7
  • Core: Cortex-M4
  • Clock: 72 MHz / Overclock: 96 MHz
  • Flash Memory: 256 kB
  • Cache: 256 B
  • RAM: 64 kB
  • EEPROM: 2 kB
  • DAC: 12 bits
  • USB / Serial / SPI / I2C / CAN / I2S
  • 5V tolerant digital inputs

• ST7735R (~ $20)

  Display that uses 4-wire SPI to communicate and has its own pixel-addressable frame buffer, it can be used with every kind of microcontroller.

  • 1.8" diagonal LCD TFT display
  • 128x160 resolution, 18-bit (262,144) color
  • ST7735R (datasheet) controller with built in pixel-addressable video RAM buffer
  • 4 or 5 wire SPI digital interface
  • Built-in microSD slot - uses 2 more digital lines
  • 5V compatible, use with 3.3V or 5V logic
  • Onboard 3.3V @ 150mA LDO regulator
  • 2 white LED backlight, transistor connected so you can PWM dim the backlight
  • 1x10 header for easy breadboarding
  • 4 x 0.9"/2mm mounting holes in corners
  • Current with full backlight draw is ~50mA

• DHT22 (~ $15)

  Basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin.

  • Low cost
  • 3 to 5V power and I/O
  • 2.5mA max current use
  • 0-100% humidity readings with 2-5% accuracy
  • -40 to 80°C temperature readings ±0.5°C accuracy

• GPS (~ $40)

  High-quality GPS module that can track up to 22 satellites on 66 channels and has an excellent high-sensitivity receiver.

  • 165 dBm sensitivity, 10 Hz updates, 66 channels
  • 5V friendly design
  • Only 20mA current draw
  • Breadboard friendly + two mounting holes
  • RTC battery-compatible
  • Built-in datalogging
  • PPS output on fix
  • Internal patch antenna
  • u.FL connector for external active antenna
  • Fix status LED

• TSL2561 (~ $6)

  The TSL2561 luminosity sensor is an advanced digital light sensor.

  • Approximates Human eye Response
  • Precisely Measures Illuminance in Diverse Lighting Conditions
  • Temperature range: -30 to 80 *C
  • Dynamic range (Lux): 0.1 to 40,000 Lux
  • Voltage range: 2.7-3.6V
  • Interface: I2C
  • I2C 7-bit addresses 0x39, 0x29, 0x49, selectable with jumpers

• Wifi CC3000 (~ $35)

  Microcontroller-friendly WiFi module.

  • 802.11b/g
  • Open/WEP/WPA/WPA2 security,
  • TKIP & AES
  • Built in TCP/IP stack
  • "BSD socket" interface

• nRF24L01 (~ $1-5)

  Radio/Wireless Transceiver.

  • 2.4GHz RF
  • How To

• RFID-RC522 (~ $6)

  RFID sensor.

Getting started

Clone git sources ...

git clone https://github.com/korczis/iCave.git