shield base. AXE401 Datasheet

AXE401 base. Datasheet pdf. Equivalent

Part AXE401
Description PICAXE shield base
Feature PICAXE-28X2 SHIELD BASE (AXE401) 1.0 Introduction Thank you for purchasing this PICAXE shield base. .
Manufacture Revolution
Datasheet
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PICAXE-28X2 SHIELD BASE (AXE401) 1.0 Introduction Thank you AXE401 Datasheet
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AXE401
PICAXE-28X2 SHIELD BASE (AXE401)
1.0 Introduction
Thank you for purchasing this PICAXE shield base. This
datasheet is designed to give a brief introduction to how the
shield base is assembled, used and configured.
For general tutorials and details on how to use the PICAXE
programming language, please see the PICAXE website and
PICAXE manuals www.picaxe.co.uk The completely free
programming software may also be downloaded from this
website. For individual project advice, and examples of how to
connect your shield base to many different shields and electronic
components, please consider joining the friendly online PICAXE
community at www.picaxeforum.co.uk
A ‘wiki’ of how to use the PICAXE shield base with a wide range
of shields is currently being developed at the PICAXE website.
1.1 Overview
The PICAXE shield base is an open-source hardware ‘arduino inspired’ controller board, designed to
enable PICAXE use of the multiple different ‘shields’ that are now available. The shield base has been very
carefully designed to be compatible with the vast majority of existing shields. Each PICAXE shield base is
also provided with a free of charge AXE405 prototyping shield PCB for experimentation.
The PCB designs are released as ‘open-source’ and ‘not for profit’ designs.
1.2 Key Features
Firmware
Microcontroller
Programming Language
Physical Size & Header Position
Open Source Hardware
Not for profit PCB
Development Software Cost
Support for Windows
Support for Mac
Support for Linux
Downloads via USB port
Microcontroller System Voltage
Recommended Supply Voltage
5V Low drop out regulator
3V Low drop out regulator
Disconnectable LED on S.13
Stripboard compatible headers
On board i2c EEPROM socket
Separate programming and i/o pins
TX / RX select jumper headers
Through hole for easy self assembly
Program Slots
User RAM bytes
Clock Speed
Non-volatile EEPROM bytes
Run extra programs from i2c
PICAXE-28X2
Microchip PIC18F25K22-I/SP
BASIC or flowcharts
Standard Shield Size/Position
Yes
Yes
Free
Yes
Yes
Yes
Yes
5V or 3V (jumper selectable)
9-12V
500mA
500mA
Yes
Yes
Yes
Yes
Yes
Yes
4 x 4k
1296 (256 + 1024 + 16)
32KHz - 64MHz
256
Yes
revolution Revolution Education Ltd. Web: www.picaxe.co.uk
Version 1.3 04/11
AXE401.PMD
http://www.Datasheet4U.com



AXE401
AXE401 PICAXE-28X2 Shield Base
2
Contents
1.0 Introduction ............................................................................................................................. 1
1.1 Overview .................................................................................................................................. 1
1.2 Key Features ............................................................................................................................. 1
1.3 What does open source hardware mean?...................................................................................... 3
1.4 What does ‘not for profit’ PCB mean? .......................................................................................... 3
1.5 PICAXE-28X2 microcontroller ..................................................................................................... 3
1.6 Do I have to use the shield base to use the PICAXE system? ......................................................... 3
2.0 PICAXE-28X2 shield base input/output pins ................................................................................ 4
2.1 PICAXE Shield Pinout ................................................................................................................. 5
2.2 Modifying incompatible shields .................................................................................................. 6
3.0 Power Supply ............................................................................................................................ 7
3.1 Why the 5V / 3V Jumper H1? ..................................................................................................... 7
3.2 Can I power the board from the USB port of my computer? ........................................................... 7
4.0 PICAXE USB download cable ....................................................................................................... 8
4.1 Why the download cable jumper links H2 and H3? ....................................................................... 8
5.0 Clock Speed .............................................................................................................................. 9
5.1 Why is the LED on pin S.13 connected via jumper H4? ................................................................. 9
5.2 Why the double parallel socket beside outputs S.8 to S.13? ....................................................... 10
5.3 What is the EEPROM socket for? ............................................................................................... 10
6.0 Programming the PICAXE ......................................................................................................... 11
6.1 Can I on-screen simulate PICAXE programs? .............................................................................. 11
6.2 Getting Started - Test Program ................................................................................................. 12
7.0 Kits - Why offer a self assembly kit as well as pre-assembled boards? ........................................ 13
7.1 AXE401 - Contents (pre-assembled shield base) ........................................................................ 14
7.2 AXE401Kit - Contents (self assembly kit) ................................................................................. 14
7.3 AXE401PCB - Contents (PCB) ................................................................................................... 14
7.4 Tools required for assembly (not supplied) ............................................................................... 14
7.5 Self assembly kit preparation ................................................................................................... 15
7.6 Assembly ................................................................................................................................ 16
7.7 Optional Components (not supplied) ........................................................................................ 17
7.8 Alternate assembly - low budget 4.5V battery powered setup ..................................................... 18
8.0 AXE405 PICAXE Proto Shield .................................................................................................... 19
8.1 Using the proto shield ............................................................................................................. 19
8.2 Using the proto shield with an XBee Wireless Module ................................................................ 20
Appendix A: Circuit Schematics - PICAXE and Download Circuits ....................................................... 21
Appendix B: Circuit Schematics - Power and optional EEPROM Circuits ............................................... 22
Appendix C: Dimensions ................................................................................................................ 23
Appendix D: What are the principle differences between using a PICAXE shield base and an Arduino? . 24
Appendix E: FAQ ........................................................................................................................... 26
FAQ - Can you provide a sewable ‘e-textiles’ version PICAXE controller like the Lilypad? ..................... 26
FAQ - I want to use a PIC microcontroller, but program it in assembler or C (or other language) instead
of using the PICAXE system. Can I do this? ................................................................................. 26
Please download the latest full assembly instructions and datasheet from this web link:
www.rev-ed.co.uk/docs/axe401.pdf
revolution Revolution Education Ltd. Web: www.picaxe.co.uk
Version 1.3 04/11
AXE401.PMD





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