Hi! For my PIC16F84 based datalogger,I need to send some bytes with a pair of commonly available low power RF Tx/Rx modules. Usually these modules uses MM53200 or MC14026/27 IC to encode/decode data. The receiver uses an A.C.coupled output amplifier/comparator ; so it isn't possible use standard NRZ(like RS232) coding to send more bytes. To save time,components,headache,I looking for some routines that emulates MC14026/27 , or better , that send/receive a byte with Manchester code. Any help would be greatly appreciated ! Best regards Gianni