The PICAXE-20M2 microcontroller chip supports up to 18 inputs/outputs with 11 analogue/touch sensor channels.
A compact but powerful, PICAXE microcontroller. Very popular in education due to its low cost and small size, but also very popular in a wide range of hobbyist projects.
This chip supports up to 18 inputs/outputs with 11 analogue/touch sensor channels.
All M2 series parts support enhanced features such as configurable i/o pins, parallel tasks, ring tone music and touch sensor inputs.
Click here for more M2 series information.
For more details see the What is PICAXE and PICAXE Pinout pages.
The PICAXE-20M2 replaces the older PICAXE-20M chips.
Pack size | 40x10x15mm |
Pack weight | 2.9g |
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.
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 | 1 | 1 | 1 | 1 | 4 | 4 |
The same software, BASIC language and USB download cable is shared between all the PICAXE chips.
PICAXE-20M2 Microcontroller Datasheet | PDF Datasheet |
M2 Series Product Summary | PDF Datasheet |