1-Wire Slave i2c bridge Plug

October 19, 2015 |   |  Comment  |  1-Wire, TaaraNode

The main purpose of DS28E17 device and this board is to use i2c slave devices like sensors and low power microcontroller boards over much longer 1-Wire networks.

1-Wire Slave to i2c bridge Plug consists of DS28E17 chip, an on-board 3.3V LDO regulator and 5V to 3.3V level shifter for interfacing 3.3V DS28E17 device with 5V 1-Wire bus. There are also three optional LED indicators for debugging. The board layout is compatible with TaaraNode and JeeNode boards but can be used with any other 3.3V low power microcontroller board or i2c device.

Features

  • 1-Wire Slave to i2c bridge device: DS28E17
  • Supply voltage: 5V from 1-Wire bus
  • 1-Wire logic level: 5V
  • i2c logic level: 3.3V
  • On-board 3.3V regulator
  • LED indicators: BUSY, ED (Error Detected) and XD (Expecting Data)
  • Headers: 0,1″
  • 1-Wire connector: RJ45 or RJ12

Resources

Buy

  • Bare PCB: 3€ 
  • Pre-assembled: 20€ 

LCD Plug

February 1, 2015 |   |  1 Comment  |  TaaraNode

LCD Plug is TaaraNode and JeeNode compatible i2c driver board for HD44780 based 16-pin LCD displays. This board is based on JeeLabs LCD Plug with additional Port header.

Features

  • Compatible with HD44780 based LCD displays
  • Interface chip: MCP23008 8-bit port expander
  • Default logic level: 3.3V
  • Optional logic level: 5V
  • Software controlled backlight: on/off

Resources

Credits

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  • Bare PCB: 3€ 

RTD Plug

February 1, 2015 |   |  Comment  |  TaaraNode

RTD Plug is TaaraNode and JeeNode compatible MAX31865 based SPI inferface board for PT100/PT1000 temperature sensors.

Features

  • RTD to Digital converter: MAX31865
  • Compatible with 2-, 3-, and 4-wire Sensor Connections
  • Interface: SPI
  • Supported sensors: PT100 (PT1000 option)
  • Supply voltage: 3.3V
  • Headers: 0.1″

Resources

Credits

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  • Bare PCB: 3€ 
  • Pre-assembled: 24€ 

 

TaaraNode Mini

January 22, 2015 |   |  1 Comment  |  TaaraNode

TaaraNode Mini is small Arduino software compatible microcontroller board with on-board RFM12b radio transceiver. TaaraNode Mini is very similar to the JeeNode but is much shorter and has an option to power it from CR2032 coin-cell battery.

Features

  • Microcontroller: Atmega 328P
  • Radio transceiver: RFM12b (868Mhz/433Mhz/915Mhz)
  • Serial interface: FTDI (3,3v logic level)
  • SPI/ISP header: yes
  • JeeNode style ports: 2
  • Supply voltage: 5-16V DC
  • Clock speed: 3.3V/16Mhz or 3V/8Mhz internal oscillator

Resources

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  • Bare PCB: 3€ 

Ethernet Plug

January 22, 2015 |   |  Comment  |  TaaraNode

Ethernet Plug is small ENC28J60 based Ethernet controller board for TaaraNode and JeeNode microcontroller boards. Ethernet Plug operates entirely on 3.3V and has a on-board LDO regulator or DC/DC converter. The board can be powered either from microcontroller board it is attached to or via Passive POE. If the DC polarity from the PPOE may be issue there is also place for bridge rectifier which is bridged by default.

Features

  • Ethernet Controller: Microcip ENC28J60
  • Passive POE: default
  • Passive POE polarity auto-sense: optional
  • Supply voltage: 5-16 V DC (LDO, default) or 4.75-34 V DC (DC/DC, optional)

Resources

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  • Bare PCB: 3€ 
  • Pre-assembled: 30€ 

 

TaaraNode Ethernet

January 22, 2015 |   |  Comment  |  TaaraNode

TaaraNode Ethernet is a compact version of TaaraNode Ethernet Proto without two extra ports and prototyping area.

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  • Bare PCB: 3€ 

1-Wire Plug

January 22, 2015 |   |  Comment  |  1-Wire, TaaraNode

1-Wire Plug is 1-Wire to i2c bus converter board based on Maxim DS2482-100 Single-Channel 1-Wire Bus Master chip. It is used to off-load the time critical 1-Wire waveform generation from the MCU to the 1-Wire Bus Master to achieve error free operation with longer 1-Wire bus situations. Board header layout is compatible with TaaraNode and JeeNode microcontroller boards. There is on-board 5V LDO regulator, strong pull-up mosfet and the level converter for 5V to 3.3V i2c interface.

Features

Resources

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  • Bare PCB: 3€ 
  • Pre-assembled: 15€ 

TaaraNode Ethernet Proto

January 22, 2015 |   |  Comment  |  TaaraNode

TaaraNode Ethernet Proto is JeeNode and Arduino compatible Open Source microcontroller board with on-board ENC28J60 Ethernet controller, MAC chip and RFM12b radio transceiver. The board is software-compatible with JeeNode Ethernet Card and JeeLabs example sketches will work.
MAC address EEPROM is supported via customized UNIO library.

Features

  • Microcontroller: Atmega 328P
  • Ethernet Controller: Microchip ENC28J60
  • MAC address EEPROM: Microchop 11AA02E48
  • Radio transceiver: RFM12b (868Mhz/433Mhz/915Mhz)
  • Serial interface: FTDI (3,3v logic level)
  • SPI/ISP header: yes
  • JeeNode style ports: 2
  • Passive POE: default
  • Power input: 5-16 V DC (LDO, default) or 4.75-34 V DC (DC/DC, optional)

Resources

Buy

  • Bare PCB: 3€