I2C, SPI, 1Wire Interfacing Made Easy

Thousands of low-cost integrated circuits use serial buses: I2CChip talks to them all from your PC

Host Adaptor Products:

I2C-2-PC USB/RS232 Adaptor using BL233 $69.95 BothUSB and RS232 interfaces. USB for speed. RS232 for distance! 3 Separate I2C Buses I2C, SPI & Dallas 1-Wire interfaces Simple ASCII protocol is easy to use with any OS, and any programming language. Fully self contained, includes on board 5V and 3.3V power supply OR USB powered Galvanic Isolation for safety - protect your PC from damage Simple stand-alone functions, power on initialisation of I2C devices without PC present Watchdog function without PC Better and more economical than competitors products Use as a simple parallel I/O port without any serial bus devices e.g. drive relays. Use I2C-2-PC for development. Redesign with BL233 for low cost later. Compact in an attractive enclosure: not a bare-board New Application note on Bluetooth for I2C2PC adaptor Application note Optic Fibre Interface for I2C2PC adaptor   I2C Starter Kit $89.95 I2C Starter Kit is the fast, easy way to get up to speed with I2C and the I2C2PC adaptor. I2C2PC Adaptor 8 Bit I/O port with LED's I2C Cables & Connectors USB Cable Zip Pouch for storage Training Videos

BL233I2C to Serial Interface IC, DIP18, 10pieces Just the Bare IC to build into your own OEM products. At $3.95 in small quantities, and less in volume, you can build profitable volume products around the BL233. 3 Serial Buses 5V and 3V compatible buses All serial buses: I2C, SPI, 1-Wire Works as simple 8 bit I/O port: Drive LED's and relays directly Store POWER-ON, WATCHDOG-TIMEOUT and INTERRUPT macros internally: Runs even when the PC doesn't. Works with all Win,Linux, PDA's, Calculators. Simple ASCII commands: No API's, No DLL's needed. No hidden software costs.

I2C Bus Connectors and Cables Free Postage for I2C Bus connector and cable orders All our products use the small reliable Micro-match 6 pin connector. For your convenience we have connectors and built up cables available. Connector and Bus Pinout Learn about our pinout, and those of lots of others. Information about Crosstalk, Pullups, Bus Length, Cable Types Even if you don't use our adaptors, you can use our well thought out pinout and, compact connector for I2C and SPI bus devices.

Free Software: Talk I2C out-of-the-box Our free Realterm software talks directly to the I2C-2-PC / BL233. You can just talk write and read directly from any new serial bus IC with no programming at all.

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I2C Slave Modules

Sip Modules: SIP modules as small, simple pcbs with a single row of I/O pins along one edge, and our standard I2C connector. The only pins you need to wire up, are the I/O pins you are using. Everything else is done for you. Because the pins are 0.1" spaced, they are easy to put on proto-boards of all kinds. You can even put standard 0.1" plugs on them. 

Modules:

• 8 bit I/O port with PCF8574 
• 8 Push buttons + 8 LED's using PCF8574 
• 12 Bit +/- 10V Precision ADC with Current Sensor
• 8 Bit ADC, DAC
• 6 Digit Event Counter
• 4 Way Bus switch for bus expansion
• Bus Monitor Board
• 4 digit Numeric Displays Numeric displays are unbeatable for readability! LED and LCD, 0.3", 0.56", 0.8", 1.0", 2.3", 4.0"
• 82C96 Bus Extender and Galvanic Isolator
• 82B715 Bus Extender
• Constant Current Pullup module
• Adaptor Board for different connectors
• Alphanumeric LCD Adaptor: A simple interface to standard LCD modules

Specialist I2C Slave IC's

• BL301Versatile Display Driver: Drives a mixture of Alpha LCD's, LED and LCD modules, and does binary-> text conversions for you
• BLRS232 Interface: Send RS232 from I2C. Ideal for emitting diagnostic messages to a PC
• BL310 Latching Relay Driver: Latching relays offer many advantages, IF you have an easy way to drive them
• Shaft Encoder IC: Counts pulse from quadrature encoders, both fast positions sensors, and cheap potentiometer types

Contact us for more information about Specialist IC's

Non I2C IC's

• Bargraph IC's
• BL310Latching Relay Driver: Latching relays use almost no power, and are easier to use than normal relays with this driver
• Hours Run Meter with IR output.
• Waterproof switch IC
• Power Switch:

Contact us for more information about Specialist IC's

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Links: Info and Other I2C Chips and Devices

Mail any good links to us:

General I2C Bus Info

• I2C Specification
• The I2C Bus from Theory to Practice
• Long Cables using 82B715 Bus Extender AN444.pdf
• Comparing the I2C Bus to the SMBus (dallas)

Other Slave IC's

• PCF8574 8 Bit Open Drain I/O port
• JLC1562 8 Bit Open Drain I/O port with 6 bit DAC
• PCF8591 4x 8bit ADC, 1x 8bit DAC
• ADT7516 4x10bit ADC; 4x12bit DAC; VRef; Temp Sensor www.analog.com
• 20 Channel RC servo controller www.robot-electronics.co.uk

Other 2-wire devices that are NOT I2C

• Sensiron: Humidity and other sensors. (some) 2 wire sensor are NOT i2c, and not addressable. I2C2PC and BL233 can read them See How.
• STM,National: M5451/2/3 4 digit Display drivers. See our boards and driver dll

Other Host Adaptor Manufacturers

These companies also manufacture host adaptors

• MCC RS232 only Adaptors, Protocol analysers, I2C Boards Compare

Other Protocol Monitor

• Our Bus Monitor board is an interface to Andy Greens Warmcat software, and comes with it on disk.

Other Links

• RealTerm Terminal Software
• Henderson Bay

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Contact Information

sales@i2cchip.com
https://www.i2cchip.com
Phone +64 21 623-402

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Copyright 2002-2022 Broadcast Equipment Ltd
Last revised: Jan 13, 2022