PICAXE Manual Section 1 - TechnoPujades - Free

More documents

Recommendations

Info

www.picaxe.co.ukSection 1 22GETTING STARTEDDownloading over a network using TCP/IPThe Programming Editor software supports COM port redirection over a TCP/IP“ethernet” connection. This connection can be a local network or even theinternet.To use this feature a ‘virtual’COM port is created on thelocal computer (the computerthat is running theProgramming Editor software)and creates a TCP/IPconnection. At the remotecomputer (where the downloadcable is connected to the USB/serial port) a small redirectionservice application is installedand then redirects the real COMport to the TCP/IP connection.This system allows theProgramming Editor softwareto use the serial port on theremote computer exactly as if itwas on the local computer -new program downloads andeven serial data can betransmitted seamlessly backand forward over the TCP/IPconnection.To setup this connection two steps are required:1) Run the wizard (PICAXE>WIzards>COM to TCP/IP menu) on the localcomputer to setup the local connection.2) Install the SEC software on the remote computer and run it’s Wizard to selectthe serial port to be used. This software runs as a service and so can be configuredto always start when the computer is powered up. This allows it to be installed onunattended machines (e.g. in a museum).For further details please see the Serial Ethernet Connection software datasheet.revolution(c) Revolution Education Ltd. Email: info@rev-ed.co.uk Web: www.rev-ed.co.ukVersion 6.9 07/2009All rights reserved.22
www.picaxe.co.ukSection 1 23GETTING STARTEDPICAXE Power SupplyAll PICAXE chips will run programs at voltages between 3 and 5.5V DC. Howeversome computers may require a 4.5V to 5.5V PICAXE power supply to enablecorrect communication whilst actually downloading a new program (ie a 3Vsupply may not enable a new program to be successfully downloaded, dependingon the type of computer used).IMPORTANT NOTE - this manual describes use of the standard range (3-5.5V) parts.The X2 parts are also optionally available in special low power (1.8V to 3.3V) variants.Use of a 5V supply on a 3.3V part will permanently damage it!It is recommended that the power supply is provided in one of the 3 followingways:• 3 x AA alkaline AA cells (4.5V)• 4 x rechargeable AA cells (4.8V)• 5V regulated from a 9V DC regulated supply (5V)Do not use a 9V PP3 battery, this is above the maximum rating of the PICAXEchip and will cause permanent damage. Note that most 3xAA and 4xAA batteryboxes use the same ‘press-stud’ style connector and battery snap/clip as a PP3 9Vbattery. Note the provision of this style of clip does not mean that a project boardshould use a PP3 9V battery, it is just unfortunate that all battery boxes use thesame style connector.PP3 9V batteries are designed for very low-current, long term applications (e.g. asmoke alarm or multi-meter). Although a PP3 9V supply regulated to 5V willwork for short periods with a microcontroller, it will drain very quickly when anoutput device (e.g. LED, motor or buzzer) is connected. Therefore always use AAAor AA battery packs rather than 9V PP3 batteries in microcontroller projects (asused with many portable consumer goods e.g. CD players, LED torches etc.) Takecare when inserting PICAXE chips into your circuit to ensure they are the correctway around. Take extra care with 18 pin chips, as if inserted ‘upside-down’ thepower supply connections will be reversed causing permanent damage to thechip.AA Battery PacksAlkaline AA cells have a nominal voltage of 1.5V, so 3 cells will give 4.5V. If youwish to use 4 cells, also use a 1N4001 diode in series with the battery pack. Thediode provides voltage polarity protection, and as the diode has a 0.7V drop themicrocontroller voltage will be an acceptable 5.3V (6V-0.7V).Rechargeable AA cells have a nominal voltage of 1.2V, so 4 cells will give 4.8V.Take care not to short circuit any battery pack, as the large short circuit currentmay cause considerable heat damage or start a fire.Using battery snaps.Battery packs are often connected to electronic printed circuit boardsby battery snaps. Always ensure you connect the red and black wiresthe correct way around. It is also useful to thread the battery snapthrough holes on the board before soldering it in place - thisprovides a much stronger joint that is less likely to snap off.revolution(c) Revolution Education Ltd. Email: info@rev-ed.co.uk Web: www.rev-ed.co.ukVersion 6.9 07/2009All rights reserved.23
Page 1 and 2: PICAXE Manualwww.picaxe.co.ukrevolu
Page 3 and 4: www.picaxe.co.ukSection 1 3GETTING
Page 21: www.picaxe.co.ukSection 1 21GETTING
Page 73 and 74:
www.picaxe.co.ukSection 1 73GETTING
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101:
www.picaxe.co.ukSection 1 101GETTIN
show all

PICAXE Manual Section 1 - TechnoPujades - Free

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?