Stamp IR-TRX Add-on Card Description This STAMP Add-On Card provides connectivity to an IR Emitter and IR Detecting Unit for Remote Control. This Card may only be plugged onto the TIMERS Expansion Connector You can get the card's schematic here. Linux Infrared Remote Control Project Driver LIRC - Linux Infrared Remote Control Jumpers setting JP1: RXD Receive Timer Selection Jumper position , TIMERS CON Pin# , BF537-STAMP , BF533-STAMP , BF527-EZKIT , BF548-EZKIT 1-2 , 10 , TMR2 , TMR2 , TMR5 , TMR2 3-4 , 8 , TMR1 , TMR1 , TMR4 , TMR1 5-6 , 6 , TMR0 , TMR0 , TMR3 , TMR0 7-8 , 5 , TMR5 , - , - , - 9-10 , 3 , TMR6 , - , TMR7 , - 11-12 , 1 , TMR7 , - , - , - JP2: TXD Transmit Timer Selection Jumper position , TIMERS CON Pin# , BF537-STAMP , BF533-STAMP , BF527-EZKIT , BF548-EZKIT 1-2 , 10 , TMR2 , TMR2 , TMR5 , TMR2 3-4 , 8 , TMR1 , TMR1 , TMR4 , TMR1 5-6 , 6 , TMR0 , TMR0 , TMR3 , TMR0 7-8 , 5 , TMR5 , - , - , - 9-10 , 3 , TMR6 , - , TMR7 , - 11-12 , 1 , TMR7 , - , - , - JP3: OSC Transmit Oscillator Timer Selection Jumper position , TIMERS CON Pin# , BF537-STAMP , BF533-STAMP , BF527-EZKIT , BF548-EZKIT 1-2 , 10 , TMR2 , TMR2 , TMR5 , TMR2 3-4 , 8 , TMR1 , TMR1 , TMR4 , TMR1 5-6 , 6 , TMR0 , TMR0 , TMR3 , TMR0 7-8 , 5 , TMR5 , - , - , - 9-10 , 3 , TMR6 , - , TMR7 , - 11-12 , 1 , TMR7 , - , - , - 13-14 , Local Oscillator (default not populated) , , , ,