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Our 2nd generation tilt compensated compass, now better than ever with higher accuracy and lower price.

Full Technical Data, and the Compass FAQ


100% compatible with CMPS09 and works with all CMPS09 Examples.





Voltage - 3.3v-5v only required
Current - 25mA Typ.
Resolution - 0.1 Degree
Accuracy - Horizontal, typically 0.5%
Accuracy - Tilted to +/- 60 degrees, typically 1%
Output 1 - I2C Interface, SMBUS compatible, 0-255 and 0-3599 , 100khz
Output 2 - Serial port, 9600 baud, no parity, 2 stop bits and 3.3v-5v signal levels
Output 3 - Timing Pulse 1mS to 37mS in 0.1mS increments
Small Size - 24mm x 18mm

Full USB-ISS Documentation

The USB-ISS module is an enhanced version of our low cost USB-I2c module. The USB-ISS is able to connect to I2C, SPI and Serial buses as well as Digital I/O and Analog inputs.

	USB-I2C		USB-ISS
USB Powered
Support I2C at 100khz
Support I2C at 20khz-1000khz				Yes, 20,50,100,400 &1000khz
I2C + I/O
SPI Mode				24khz to 3Mhz
Serial Mode				300baud to 3Mbaud
I2C Direct				Used to build custom I2C sequences
Bootloader				Built in Bootloader alowing easy user updates
Supply power to external Circuit				Up to 80mA for USB-ISS
5v operation
3.3v operation
Mounting holes on PCB

Lowest cost ultrasonic ranger with both I2C and Serial interfaces. New AutoTune algorithms intelligently back the minimum range right up to the transducer ringdown for the very best performance possible, automatically, in the background, and with no calibration cycles necessary. Additional new commands allow for separate burst and ranging control.

SRF02
Range - 16cm to 6m.
Power - 5v, 4mA Typ.
Frequency - 40KHz.
Size - 24mm x 20mm x 17mm height.
Analogue Gain - Automatic 64 step gain control
Connection Modes
1 - Standard I2C Bus.
2 - Serial Bus - connects up to 16 devices to any uP or UART serial port
Full Automatic Tuning - No calibration, just power up and go
Timing - Fully timed echo, freeing host controller of task.
Units - Range reported in uS, cm or inches.
Light Weight - 4.6gm

Full LCD03 Documentation






Display - 20 characters per row, 4 rows
Voltage - 5v only required
Current - 125mA typ. with backlight on
Modes - I2C or 9600 baud Serial
Keypad - Automatic scanning of a 3x4 matrix keypad
Custom characters - up to 8 custom characters easily defined

Backlight defaults off, and can be turned on under software control

Detects a candle flame at a range 2 metres (6ft) and is unaffected by ambient light!
Detect Human Body heat!
Servo control for image construction!



8 Pixel Thermal Array Sensor

Voltage - 5v only required
Current - 5mA Typ. excluding servo
Temperature Range - 4°C - 100°C
Accuracy (Full FOV) - +/-2°C +/-2% from 10°C to 100°C,
Accuracy (Full FOV) - +/-3°C from 4°C to 10°C
Field of View - 41° x 6° (8 pixels of approx. 5° x 6°)
Outputs - 1 ambient + 8 pixel temperatures
Communication - I2C Interface
Servo - Controls servo in 32 steps to 180° rotation
Small Size - 31mm x 18mm
Full Technical Data

SRF05
Range - 1cm to 4m.
Power - 5v, 4mA Typ.
Frequency - 40KHz.
Size - 43mm x 20mm x 17mm height.

Two operational modes are available, Single pin for trig/echo or 2 Pin SRF04 compatible.

The input Trigger is a 10uS Min. TTL level pulse
Echo Pulse is Positive TTL level signal, with the width proportional to the object range.
Full Technical Documentation

SRF06
Range - 2cm to 4m.
Power - 4-20mA current Loop.
Frequency - 40KHz.
Size - 43mm x 20mm.

Full Technical Documentation

The MD03 is a medium power motor driver, designed to supply power beyond that of any of the low power single chip H-Bridges that exist. Main features are ease of use and flexibility. The motor's power is controlled by on-board Pulse Width Modulation (PWM) generators driving the H-Bridge Transistors.

Full MD03 Documentation
Voltage - 5v logic supply and 5v - 24v for the motor
Current - 50mA Max for logic and up to 20A for the motor
Control 1 - 0v - 2.5v - 5v Analogue for Reverse - Stop - Forward
Control 2 - 0v - 5v (or PWM equiv.) with separate direction control
Control 3 - RC Mode - Controlled by standard Radio Control system. Direct connection to RC receiver. (1mS - 2mS pulse with 1.5mS center off).
Control 4 - I2C Interface, full control, acceleration and status reporting. Up to 8 modules on bus. SCL speed up to 1MHz
Current limiter - Preset at 20A
Temperature limiter - Reduces power gracefully if module overheats
Size - 113mm x 52mm x 30mm

Controlled from over Ethernet using simple TCP/IP commands.

Full ETH-RLY16 Documentation



Number of Relay's - 8
Power - 12V DC adaptor, supplied separately.
Control interface - HTTP (webpage) or TCP/IP over Ethernet.
Relay current - Up to 16Amp @24vdc or 250vac
Connections - Screw Terminals for N/O N/C and Common contacts.

3x4 Matrix Keypad for the LCD03

See LCD03 Documentation