Running out of I/O space? Need concurrent I/O processing? The PAK-III can help. This easy to use chip augments your Stamp or other microcontroller with 8 I/O pins. The PAK-III is a standard 18-pin IC that can interface with your microcontroller using only 2 pins. And best of all, an I/O operation can proceed without holding up the main processor! Need even more I/O? The PAK-IV (a 28-pin device) adds 16 I/O pins.
Features include:Robust, speed-independent serial interface -- only 2 pins required
Can connect multiple Stamp Paks to the same 2 pins using an enable pin for each device
Configure each pin for input or output (PAK-III: 8 I/O, PAK-IV: 16 I/O)
Stamp II users can use ShiftIn and ShiftOut
Commands include: IN, OUT, HIGH, LOW, READ, REVERSE, TOGGLE, PULSEIN, PULSEOUT, SHIFTIN, SHIFTOUT, COUNT, PWM, RCTIME, FREQOUT, READ, WRITE, and a time-based RANDOM function
Synchronous operation -- read results when you are ready for them. No blocking and no interrupts required.
Fast 10MHz (PAK-III) or 20MHz (PAK-IV) operation speed (ceramic resonator included)
Bonus: 64 bytes of EEPROM memory (PAK-III), 96 bytes of RAM memory (PAK-IV)
Need this type of functionality for PC programs? Check out the GP3!
With the PAK-III or PAK-IV you'll receive the IC, a ceramic resonator, a manual, and a software disk with an example Stamp library. The manual explains the communications protocol in detail, the connections required to the chip, and the commands you can use.
Try a PAK-III for 21 days. If you aren't delighted, just send it back undamaged for a full refund of your purchase price. But once you see your Stamp handling I/O like a champ, you won't want to be without it.
Add to Cart PAK-III Coprocessor $24.95 each
Add to Cart PAK-IV Coprocessor $29.95 each
Notice: Basic Stamps are a product of Parallax Inc. AWC is in no way affiliated with Parallax.
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