Post by thread:[PIC] RS232 beginner

I am trying to learn PIC programming and decided to buy the pickit2 starter kit from microchip (http://www.ptitrain.com/electronique/microp/docs_en_vrac/DS51556_lowPinCountUserGuide.pdf). I was wondering if it would be possible to add an rs232 connection to this board. Would I be able to use one of the ttl to RS232 converters that are on ebay? The board comes with a 14 pin expansion header. Thanks -- View this message in context: www.nabble.com/RS232-beginner-tp15283112p15283112.html Sent from the PIC - [PIC] mailing list archive at Nabble.com.

crod38 wrote: > > I am trying to learn PIC programming and decided to buy the pickit2 > starter kit from microchip > (http://www.ptitrain.com/electronique/microp/docs_en_vrac/DS51556_lowPinCountUserGuide.pdf). > I was wondering if it would be possible to add an rs232 connection to this > board. Would I be able to use one of the ttl to RS232 converters that are > on ebay? The board comes with a 14 pin expansion header. Thanks > > If they are along the lines of the ones shown at: www.dontronics-shop.com/RLC-1-RS232-to-5-Volt-Level-converter-p-16186.html yes they should work fine. Just line the signals up correctly. Cheers Don... http://www.dontronics-shop.com -- View this message in context: www.nabble.com/RS232-beginner-tp15283112p15284162.html Sent from the PIC - [PIC] mailing list archive at Nabble.com.

You will also find a truly amazing amount of information about RS232 interfaces at http://www.piclist.com/techref/io/serial/rs232.htm And specifically about PIC RS232 interfaces at http://www.piclist.com/techref/microchip/rs232.htm It should be noted that the same unit Don suggests is available in the USA for a few dollars less. http://www.piclist.com/techref/io/serial/RCL1.htm And proceeds help to support the piclist.com WEB site. If you live outside the USA, Dons price is better. -- James. {Original Message removed}

With a price only one dollar less than the RLC-1, Olins' unit is larger, has no case, no cable, does not convert RTS or DTS, and does not support 3.3v operation. All of which would seem to indicate the RLC-1 is a better buy. On the other hand, his 5 unit price is $13.80 which I can't begin to hit. http://www.piclist.com/techref/io/serial/RCL1.htm the bottom of the page contains a comprehensive list of RS232 to TTL converters. Including links to Olins product, the Dontronics version of the RLC-1 (better shipping outside the USA) and a kit for $14 from Al Williams for those with more time and less money. Have we covered all the bases on where you can buy an RS232 to TTL converter? I'd just as soon stop going on about this. If you have another converter you want to sell, just please add a link to the RLC-1 web page or the page on the subject at piclist.com: http://www.piclist.com/techref/io/serial/ttl-rs232.htm Use the form at the bottom. You don't need my permission. Getting back to RS232 code: Let us know if we have missed anything at http://www.piclist.com/techref/microchip/rs232.htm -- James. {Original Message removed}

I have an RS232 to TTL level converter using a Hex Inverter and a couple of resistors and a diode I whipped together quick and dirty for Arduino work only to find a lot of other uses for it. I had a production run done and sell them on my website as a kit for $3 (the P3 unit has Rx and Tx only) and $4 (the P4 unit has Rx, Tx, and DTR) each. I have blasted 115KBaud from an ATmega168 UART to a PC and not dropped a byte so it holds up there. Its not fancy, but it works .... Up to this point I have never really advertised it much, but have sold quite a few anyway. I also sell the bare pcb's for $1-2 each <http://www.wulfden.org/pa/index.shtml> -- cheers ... 73 de brian riley, n1bq , underhill center, vermont <http://web.mac.com/brianbr/> Tech Blog <http://www.wulfden.org/TheShoppe.shtml> Home of the K107 Serial LCD Controller Kit FT817 Power Conditioner Kit Tab Robot Laser Tag Kit MSP430 Chips and Connectors Propeller Robot Controller SX48 "Tech Board" Kit PICAXE chips and accessories Freeduino systems On Feb 5, 2008, at 4:42 PM, James Newton wrote: {Quote hidden}> With a price only one dollar less than the RLC-1, Olins' unit is > larger, has > no case, no cable, does not convert RTS or DTS, and does not support > 3.3v > operation. All of which would seem to indicate the RLC-1 is a better > buy. On > the other hand, his 5 unit price is $13.80 which I can't begin to hit. > > http://www.piclist.com/techref/io/serial/RCL1.htm the bottom of the > page > contains a comprehensive list of RS232 to TTL converters. Including > links to > Olins product, the Dontronics version of the RLC-1 (better shipping > outside > the USA) and a kit for $14 from Al Williams for those with more time > and > less money. > > Have we covered all the bases on where you can buy an RS232 to TTL > converter? I'd just as soon stop going on about this. If you have > another > converter you want to sell, just please add a link to the RLC-1 web > page or > the page on the subject at piclist.com: > > http://www.piclist.com/techref/io/serial/ttl-rs232.htm > > Use the form at the bottom. You don't need my permission. > > Getting back to RS232 code: Let us know if we have missed anything at > http://www.piclist.com/techref/microchip/rs232.htm -- cheers ... 73 de brian riley, n1bq , underhill center, vermont <http://web.mac.com/brianbr/> Tech Blog <http://www.wulfden.org/TheShoppe.shtml> Home of the K107 Serial LCD Controller Kit FT817 Power Conditioner Kit Tab Robot Laser Tag Kit MSP430 Chips and Connectors Propeller Robot Controller SX48 "Tech Board" Kit PICAXE chips and accessories Freeduino systems