The 18M2 Motherboard is the controlling heart of an 18-pin PICAXE system to which other input and output interfaces connect.
Motherboard test program
This simple test program will demonstrate that the 18M2 microcontroller is functioning. Shortly after download the Terminal display will appear and show a message indicating the 18M2 is working.
The 18M2 Motherboard is the main board to which other create input / output modules connect.
The motherboard contains a PICAXE-18M2 microcontroller, a 3.5mm jack socket download interface for loading programs into the 18M2 plus connections for a 4.5V battery power supply and 13 microbric connection points for other create modules. Programs are downloaded using the AXE027 USB serial cable. The motherboard has a switch to turn its power on and off and includes a LED to show when the board is powered.
For added short circuit protection in the educational environment each i/o pin also has an inline 220 ohm resistor - that is the reason for the extra two resistor array 'chips' seen on this motherboard!
For a moving 'robot' style motherboard for the create system the BOT120 motherboard kit (based around the PICAXE-20X2 microcontroller) will be of interest.
Bill of Materials
|PICAXE-18M2 microcontroller||AXE015M2||1||Buy Now|
|18-pin 0.3" DIL IC socket||ICH008||1||Buy Now|
|3.5mm stereo jack socket||CON039||1||Buy Now|
|10k resistor (pack 100)||RES10K||1||Buy Now|
|22k resistor (pack 100)||RES22K||1||Buy Now|
|100nF miniature polyester capacitor||CAP001||1||Buy Now|
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