TC4 SHIELDS AND BOARDS

Update 11-Feb-14: TC4 devices are again available for order.

Update 6-Sept-2012: AC zero cross detector boards (ZCD) are now available!
Update 3-Sept-2012: HT Roaster Interface boards are now available!
Update 3-Sept-2012: TC4 V5.30 shields are now available!
Update 3-Sept-2012: TC4C V1.30 boards are now available!
Update 3-Sept-2012: Complete LCD display and keypad units are now available!

The TC4 design is the original brainchild of Bill Welch, and he has been instrumental in its ongoing development. The members of the Homeroasters.org forum have contributed suggestions. The TC4 system came about as the result of collaboration among the participants in this original TC4 thread.

Click on the following links for more information regarding the entire family of TC4 boards:

If you would like to order one or more items, please use the PayPal links below.

Orders shipped to US addresses will be mailed using USPS Priority Mail (small flat rate boxes).

Orders shipped to non-US addresses will be mailed using either USPS Priority Mail International (small flat rate boxes) or USPS Express Mail International (legal size flat rate envelopes). Please click here for important information to help you understand these options and to understand the limits of our responsibility for your package once it has been mailed.

Despite my best efforts with setting things up through PayPal, sometimes customers are charged too much for shipping when more than one item is purchased. If this happens, I will refund the excess shortly after your order is received. But if you think you have been charged too much for shipping and I have not made a refund, please send me a note.

MLG Properties, LLC
Lexington, KY

TC4C standalone board options
TC4C-BUILT
Available.
This is a complete Arduino Uno-compatible standalone system, and will be fully assembled, tested, and programmed before shipping. You may choose one of several TC4 applications to be pre-programmed into the board. If you would like to use the TC4 system, but do not wish to purchase an Arduino board and then install and learn the Arduino progamming IDE, then the TC4C might be a good choice. *(Please see note at the bottom of this table).
Important: please tell me what application you want pre-loaded, either via email or in the location provided for messages to seller during PayPal checkout.
$109
TC4 shield options
TC4-SMD
Available.
PCB with surface mount chips pre-soldered. Includes MCP3424, MCP9800, 24LC512 EEPROM, S1AB-13-F diode, surface mount resistors, capacitors, and LED's.
(Note: you will still need to buy and solder the through-hole hardware components.)
$29
TC4-KIT
Available.
TC4-SMD, plus all loose hardware required to complete the board. The soldering for the surface mount chips will be done for you, but you will have to solder the through hole components (pin headers, wire terminals, and reset button). Everything on the BOM is included.
$39
TC4-BUILT
Limited quantities.
TC4-KIT with all hardware soldered to make a complete, ready-to-use shield.
$79
LCD display interface options
LCDAPTERC-COMPLETE
Available.
Fully assembled LCDAPTER-KIT, plus 16x2 LCD panel (white text on blue background w/white LED backlight), 3 LED's, and 4 buttons. Also includes 6 inch (150mm) long 4-conductor I2C cable for connecting the LCDAPTER-COMPLETE to the I2C header that is included with every TC4 device.
Options include tall keypad buttons for panel mounting, and female connector socket for piggyback mounting on TC4C board. Please let me know if you prefer either of these no-extra-cost alternative configurations.
$59
AC Zero Cross Detector (ZCD) options
ZCD-BUILT
Available.
AC zero cross detector. Needed for various applications that require identification of times when AC voltage crosses zero. Designed for use on both nominal 120V and 240V mains.
WARNING: use of this board will expose you to potentially lethal voltages. It is intended for use by professionals and highly advanced amateurs only!
ZCD board schematic (PDF)
Link to web page with technical details.
$19

* The TC4C will be preprogrammed with the firmware application of your choosing. Popular choices are firmware to support the RoastLogger program and the Artisan program. Note, however, that different firmwares are required for different programs, i.e., if you request firmware for RoastLogger, then the TC4C will not work with Artisan (and vice versa). The firmware required for these applications is freely downloadable from the TC4 project googlecode site , and the required Arduino IDE is freely downloadable from the Arduino site. But this requires a certain degree of expertise with electronics and software and may not be for everyone!


Please click here to access the GoogleCode site that's been established for this project. There you will find information related to hardware, software, and instructions.



TC4 shield (SMD version)


TC4 shield (BUILT version)


TC4C (BUILT)