Demand Peripherals     Robotics and Automation Made Easy

Our Mission
Demand Peripherals is dedicated to offering a complete line of robotic and industrial control systems and peripherals. Our primary focus is on Linux but our software and hardware work on Windows and OSX as well. Our software-defined robot controller and our selection of daughter cards can give you the perfect mix of peripherals for your PC, robot, or industrial control system.

We try to be as open-source as possible. The protocol to the controller card is public, the schematics for all of our daughter cards are released under a Creative Commons license, and all of our host side software is released under the LGPL. However, our use of libraries means you can, if you want, build a custom application as a library using your own proprietary code.

About Us
Demand Peripherals brings together the right mix of expertise in Linux, Verilog, and circuit board layout in order to bring you the lowest cost, simplest, easiest to use peripherals for your robot or other Linux based control system.

Contact Us
The staff of Demand Peripherals is pleased to answer any questions you may have regarding our products and their use. We would especially like to hear from you if you have suggestions for new products or ways to improve our existing products.

For technical questions please send email to

For questions regard volume and cash discounts please send email to

FPGA Defined Peripherals
User Interface
FPGA Configuration
FPGA Buttons & LEDs
Host Tx/Rx Interface
AVR Interface
Stereo Audio Amplifier
Text LCD and Keypad
Quad WS2812 Interface
Quad Slide Pot
IR Recv/Xmit
6 Digit LCD
RC Decoder
Keyfob RF Decoder
Rotary Encoder Interface
Quad Touch Interface
Motion Control
Dual DC Motor Controller
Dual Quadrature Decoder
Quad 13 Bit Servo
Bipolar Stepper Controller
Unipolar Stepper Controller
Simple Input / Output
Quad Binary Output
Quad Binary Input
Octal Input/Output
32 Channel Binary Output
32 Channel Binary Input
Quad Serial Output
Octal Serial Output
Octal 12-bit ADC
Quad Ping))) Interface
Pololu QTR Interface
Octal SRF04 Interface
Generic I2C
Generic SPI
Octal 8-Bit DAC
Quad Digital Potentiometer
Quad PWM Output
Quad PWM Input
Quad Event Counter
Real Time Clock
Dual Pulse Generator

Interface Cards
Control Cards
User Interface
Stereo Audio Amplifier
IR Recv/xmit
Six Digit LCD Display
Keyfob RF Receiver
Rotary Encoder
Quad Switch Card
Text LCD / keypad
Quad Slide Pot
Quad Touch Interface
Motion Control
Dual 7-amp H-bridge
Quad Open Drain Driver
Quad 10 Amp Relay Card
Input / Output
Octal 8-Bit DAC
Quad Digital Potentiometer
Octal 12-bit ADC
Octal SRF04
I2C Prototyping
SPI Prototyping
USB 2.0 Hub
Real Time Clock
Octal Input/Output
32 Channel Input
32 Channel Output
Power Distribution Card
15 Amp Power Distribution
5 Volt Switching Regulator
ATX Power Break-Out Card
Disk Drive Power Break-Out
MP43 Aluminum Mounting Plate
WW4 Large Prototyping Card
WW2 Prototyping Card
WW1 Small Prototyping Card
SMP SMD Prototyping Card