When your laboratory, workshop or environmental process management project requires sensor and controls, USB devices are usually the simplest way to handle this. The Decaf Series of USB devices provides a wide range of capabilities, and come in two general types: with an LCD and some I/O, and as a sensor and control I/O device, or IOC. See the table below for comparison.
This table provides information on the features implemented in PiXCL Firmware for each Decaf Board.
All Decaf boards use STMicroelectronics STM32F based ARM MCUs that have varying peripheral and memory sizes based on part number.
Decaf Board LCD Display Format Digital Inputs Digital Outputs Analog Inputs SPI Channels MCU, Clock Frequency, Flash, RAM Decaf-Z28 320 x 240 2 4 2 1 STM32F103RBT, 72 MHz, 128 KB, 20 KB Decaf-Z35 320 x240 2 4 2 1 STM32F103RBT, 72 MHz, 128 KB, 20 KB Decaf-Z50 800 x 480 2 4 2 1 STM32F103RBT, 72 MHz, 128 KB, 20 KB Decaf-0 320 x 240 8 8 8 0 STM32F103VET, 72 MHz, 512 KB, 64 KB Decaf-1 320 x 240, 480 x 272 8 8 4 0 STM32F103VET, 72 MHz, 512 KB, 64 KB Decaf IOC-1 None 8 8 0 STM32F103C8T, 72 MHz, 64 KB, 20KB Decaf IOC-1sp None 8 9 2 2 STM32F103C8T, 72 MHz, 64 KB, 20KB Decaf IOC-M None 8 10 2 1 STM32F103C8T, 72 MHz, 64 KB, 20KB Decaf IOC-2 None 8 9 4 1 STM32F103RBT, 72 MHz, 128 KB, 20KB Decaf IOC-2xe None 16 16 8 STM32F103VET, 72 MHz, 512 KB, 64 KB Decaf IOC-235 480 x 320 8 8 4 2 STM32F103VET, 72 MHz, 512 KB, 64 KB Decaf IOC-3 None 8 8 8 STM32F103ZGT, 72 MHz, 1024 KB, 96 KB Decaf IOC-350 800 x 480 8 8 8 STM32F103ZGT. 72MHz, 1024 KB, 96 KB Decaf IOC-370 800 x 480 8 8 8 STM32F103ZGT, 72MHz, 1024 KB, 96 KB Decaf IOC-405 None 8 8 8 STM32F405RGT, 168 MHz, 1024 KB, 192 KB
End-of-life product, support terminated Q2 2017.
Decaf boards and the PiXCL software are designed to greatly simplify the integration of sensor and control I/O and user interaction in your environmental or process monitoring projects.
For example, a Windows host PC can have multiple Decaf USB devices connected locally, each with sensors or controls connected, with an app being the main user interaction and data processing point. A Decaf board with its own LCD can provide local control and user interaction as needed, while reporting events and data to the host app.
All Decaf boards include a Real Time Clock (RTC) that can be set and queried by your apps. Data events can be time stamped if needed. LCD boards have a battery backup for the RTC. If required, an app can set the RTC date-time on all connected boards.
Similarly, a networked Decaf NHC-5a Android node can have multiple Decaf boards connected, and perform data management and compression if needed, before that data is sent to a processing center or app on another PC or server.
The same applies in general to Decaf boards connected to a RaspberryPie 2 or 3, or a Pine A64 running Windows 10 IoT.
The PiXCL Code Studio runs in Windows 10 (32 and 64 bit), and provides the easy-to-learn app development where all Decaf board users will start. PiXCL 11 is a high level interpreted language that is largely self-documenting and can be used to create very capable desktop apps that include imaging and video operations. It also includes a comprehensive set of commands (around 100) that support all the Decaf LCD and IOC boards for sensor inputs, control outputs and user interaction on the LCD models.
Decaf board command support functions are implemented in a separate DLL that can be called from C++ or C# projects. The Decaf SDK is expected to be available Q2 2018. We have a Developer Program available for SDK early adopters.
Decaf SDK users can use PiXCL 11 to test app ideas and LCD user interface presentation before building sensor / control / LCD content commands into their own code.
Decaf boards come ready to run with all necessary firmware already loaded, and appear to the host system as a USB Human Interface Device (HID), and uses the standard Windows HID driver.
So… no searching for unsupported drivers.
Decaf firmware can be expected to evolve as we add more or different functionality, and if necessary, fix any bugs that might be identified. We provide a set of utilities available from the Support Pages (UserID and Password is required) to simplify the update process.
This means … no need to send the board back for upgrades. New firmware binaries are downloaded from the Support Pages. Installation typically takes less than 5 minutes.
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