Add Digital inputs and outputs, Analog inputs, PWM outputs, multiple SPI, I2C and 1-Wire master buses to your computer.

Overview

FF32 chip is highly optimized and low components count solution for connecting various sensors, EEPROMs, motors, switches, LCDs, NFC readers, etc. to a computer over USB port.

Feature	FF32
Body	28-pin DIP 300mil
Digital Outputs	18
Digital Inputs	18
PWM Outputs	6
Analog Inputs	12
SPI Master Buses	4
I2C / TWI Master Buses	9
1-Wire / MicroLAN Master Buses	18
Power supply	3.3V to 5V
Hot-pluggable	YES
Output Pins current (sourced or sunk)	25mA
Overall Output Pins current (sourced or sunk)	185mA
USB 2.0 compliant	YES
Number of supported chips per host	127
In-circuit upgradeable	YES

* No dedicated USB driver needed (Operating System native USB HID driver is used)
* Programmable circuit's Vendor and Product ID strings, including serial number
* Compatible with various SBCs (Raspberry Pi, BeagleBoard's, Cubietech's, CuBox-i, HummingBoard, OLinuXino, RIoTboard, Gateworks', BLUETECHNIX's, etc.)

Availability

Notes:
* VAT is not included in listed prices
* €5.00 flat rate Worldwide Shipping (Recordered Airmail)

Complete your order:

If you live outside EU and would like to arrange VAT exemption (the parcel gets CN23 declaration), please contact us before placing the order.

EU VAT-registered companies shall contact us in order to process VAT exemption.

Development Support

Documents:
Datasheet (Updated Aug 3, 2015)
Errata Sheet

Update:
Latest firmware, v0.8 (Aug 3, 2015; including Linux 'C' source code of the update tool)

Software:
Linux Demo, 'C' source code (Updated Aug 3, 2015)
Windows Demo application, executable (Updated Aug 27, 2014)
Windows Demo application, VB.NET sources, Visual Studio 2008 project (Updated Aug 27, 2014)

Hardware:
Evaluation board schematics (product available for purchase above)
Evaluation board layout

Proposed board template schematics
Proposed board template layout
Eagle CAD Library

Users contributions:
Blog of various FF32 experiments by Paul Merkx
Python 2.7 demo code and examples, ported from the Demo 'C' code by Douglas Otwell (Apr 17, 2014; including examples of blinking LED, LED color rainbow, I2C communication (with Arduino) and HD44780 16x2 LCD module "Hello world!" code)
MFRC522 NXP Mifare reader Python communication code by Paul Merkx (May 07, 2014)
DS18B20 temperature sensor Python code (including CRC check) by Paul Merkx (July 12, 2014)

3rd Party Software

GUI with an editor and a scripting language interpreter by Chris Roossien (July 18, 2015)
1-Wire Automation Software by Axiris
GUI front-end (Qt4/C++) by Michael (alias mad-hatter) (August 21, 2014)

Demos

Paul Merkx has sent us a link to an evidence of his first usage of the FF32 chip: video

Disclaimer

FF32 chip is compliant to RoHS directive.