Karyni Expansion Modules

Expand the usability of Karyni with these stackable expansions!
 

Available Expansions

  • OLED Display
  • Proximity, Gesture, and Light Sensor
  • I2S Audio (ADC, DAC, and Amplifier)
  • Motor Control
  • Power LED Driver
  • GSM + GPS / GNSS
  • LORA Connectivity
  • Solid State Relay
  • 18650 Battery Expansion

 

OLED Display

xxxx inch white OLED display based on xxxx chipset

Application Example on MicroPython

Application Example on Arduino / Platformio

I2S Audio (ADC, DAC, and Amplifier)

Record and play audio on your Karyni with this expansion module.

xx Stereo Audio DAC provides analog audio from xx digital input audio stream. The analog audio is amplified by xxxx, which can directly drive 2x xxW speakers. An extra headphone output can be used to drive headphones with xx Ohm drivers, or drive an external amplifier for higher output power.

A stereo DAC takes input from 2x MEMS microphones located on the board for recording, or sound / voice processing applications.

Proximity, Gesture, and Light Sensor with LED Driver

Add a proximity, gesture, and light sensor to your project! The APDS-9960 from Avago Technologies provides an easy to use gesture sensor “to convert physical motion information (i.e. velocity, direction and distance) to a digital information”.

The gesture sensor can sense simple gestures like Up, Down, Left, Right, and also complex ones with the help of the built-in  gesture engine. The proximity sensor can approximate the proximity of an object in front of the sensor by measuring time-of-flight of an IR pulse reflection. The ambient light sensor senses the amount of Red, Green, Blue, and clear light ambient on the sensor. It has built-in IR and UV blocking filters for very high sensitivity.

The 4 Channel LED driver allows to control brightness of 4 LEDs, using internal 3.3V power supply, or external power supply up to 28V.

Application Examples

  • Lighting Automation
  • Movement Sensing
  • Gesture based menu navigation

LED Driver

Control up to 8 channels of high power LEDs with PWM dimming, using internal 3.3V power supply, USB / Li-ion power source, or an external power source up to 28V.

Motor Control

Control 2x motors with direction and speed control, using internal 3.3V power supply, direct supply from USB / Li-ion battery, or an external power supply.

Solid State Relay

This expansion module provides 4 channels of Solid State Relays. These relays can be used to turn on or off 4 different loads, each drawing a maximum of 2A current (660W for 220V regions).

These relays will not work for dimming applications! You need the LED driver expansion for that (up to 28V DC), or a separate TRIAC based controller for controlling traditional incandescent light bulbs (and motors).

Relay part no. CPC1976Y / G3MC202PLDC5 / G3MB-202P DC5

Click here for application sample.

GSM + GPS / GNSS

Enhance the connectivity and location services of Karyni with the Quectel MC60 based expansion board. Features:

  • Quad band GSM/EDGE (850/ 900/ 1800/ 1900MHz)
  • Support voice, data, SMS and QuecFOTATM functions
  • Support Bluetooth 4.0 (GATT/PXP/FMP profiles) and Bluetooth 3.0 (SPP/HFP-AG profiles) specifications
  • Multi-GNSS system: GPS, GLONASS, Galileo and QZSS
  • GNSS receiver channels: 99 acquisition/33 tracking/210 PRN channels
  • Built-in LNA for higher sensitivity: -149dBm @Acquisition, -167dBm @Tracking
  • Support advanced technologies: EASYTM/LOCUSTM/EPOTM/AlwaysLocateTM/GLP/SDK/QuecFastFix Online
  • Great anti-jamming performance due to multi-tone active interface canceller
  • Low power consumption: 1.2mA @DRX=5

Application Examples for GSM + GNSS expansion.

LoRa Connectivity

LoRa Connectivity expansion is based on SX1276 transceiver from Semtech.

Features:

  • LoRa® Modem
  • 168 dB maximum link budget
  • +20 dBm – 100 mW constant RF output vs. V supply
  • High sensitivity: down to -148 dBm
  • Low RX current of 9.9 mA, 200 nA register retention
  • FSK, GFSK, MSK, GMSK, LoRa® and OOK modulation

Applications:

  • Automated Meter Reading
  • Home and Building Automation
  • Wireless Alarm and Security Systems
  • Industrial Monitoring and Control
  • Long range Irrigation Systems

Click for some application examples.

Sub 1 Ghz Wireless

Low power, long range wireless communication based on Texas Instruments’ CC1101 Wireless Transceiver.

Features:

  • Low Power, with Wake-On-Radio functionality. (It can even wake Karyni)
  • Multiple Sub 1 GHz frequencies (antenna is designed for 433 MHz, trimmable for different frequencies)
  • 2-FSK, 4-FSK, GFSK, and MSK modulation supported as well as OOK and flexible ASK shaping
  • 1 Km range in suburban setting, and optional (CC1190) range extender.
  • Supports mesh networking

Applications:

  • Low power wireless sensor nodes
  • Sub-1 Ghz wireless hub / bridge to WiFi with Karyni.
  • Wireless system monitoring (such as meter reading)

Click for application samples!

[Image for Gesture sensor board]

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