PICAXE-28X2 Module (AXE201)

Product Details

A compact PICAXE-28X2 module which contains the popular PICAXE-28X2 (PIC18F25K22) chip, voltage regulator, download socket, and reset switch in a convenient 28-pin, 0.6" wide, format. Supplied as an assembled and ready to use module it is ideal for breadboarding work but will also find a suitable place in other projects.

This 28X2 module supports up to 22 inputs/outputs with 16 analogue/touch sensor channels with an operating speed up to 16MHz using an internal oscillator and 64MHz using an on-board resonator. This chip supports 4 internal and up to 32 external program slots and is capable of acting as an i2c slave device.

The 28X2 supports enhanced features such as configurable i/o pins, ring tone music and touch sensor inputs, i2c, spi and high-speed serial with background receive. Scratchpad memory plus separate Data EEPROM and Data Table are supported. See the specification tab for more X2 series information.


Pack size ?x?x?mm
Pack weight ?g

Note that the PICAXE-28X2 module is supplied with a single 28-way 0.6" DIL socket. It is recommended to connect the PICAXE-28X2 module to a circuit board using this connector rather than directly soldering the PICAXE-28X2 module to the circuit board.

The following table gives a brief summary of the various PICAXE chips.
For a more detailed comparison please see the PICAXE manuals and pinout diagrams.
Please note that the PICAXE-28X2 module pinout is not the same as the pinout for a PICAXE-28X2 microcontroller.

Feature 08M2 14M2 18M2 20M2 20X2 28X2 40X2
Memory Capacity (bytes) 2048 2048 2048 2048 4096 4096 4096
RAM (bytes) 128 512 256 512 256 1280 1280
Byte Variables (bytes) 28 28 28 28 56 56 56
Input/Outputs Pins 6 12 16 18 18 22 33
ADC/Touch Pins 3 7 10 11 11 16 27
Max. Freq. (MHz) 32 32 32 32 64 64 64
Serial In/Out Yes Yes Yes Yes Yes Yes Yes
Infrared In/Out Yes Yes Yes Yes Yes Yes Yes
I2C Yes Yes Yes Yes Yes Yes Yes
Tune (ring tones) Yes Yes Yes Yes Yes Yes Yes
Parallel Tasks 4 8 4 8 1 1 1
Program Slots 1 2 2 2 1 4 4

The same software, BASIC language and USB download cable is shared between all the PICAXE chips.



PICAXE-28X2 Module Datasheet PDF Datasheet
PICAXE-28X2 Microcontroller Datasheet PDF Datasheet
PICAXE USB Download Cable Datasheet PDF Datasheet
X2 Series Product Summary PDF Datasheet


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