On 6/12/08, tinu b wrote: > there is no 28 pin pic with 2 hardware usart interfaces, so i think i need a > software solution. There are at least 23 PICs that are 28 pins with 2 UART or USART interfaces. There are 20 sixteen bit PICs with two UART interfaces - all 24 and 30 series, the least expensive of which appears to be PIC24FJ16GA002, under $2 in volume. http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1335&dDocName=en520629 Even comes with a FIFO on the uarts. There are 3 18F parts with 2 USART interfaces, though they are future products: PIC18F24J11, PIC18F25J11, PIC18F26J11 -Adam -- EARTH DAY 2008 Tuesday April 22 Save Money * Save Oil * Save Lives * Save the Planet http://www.driveslowly.org -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist