As promised, I have just released the Master I2C/SMBus Engine (MISE) for anyone to use. I hope you find it to be a nice and simple hardware utility to add to your engineering toolbox. It's a great way to troubleshoot/experiment with/and prove out I2C/SMBus designs and devices. Or if you ever wanted to have a PC controlled I2C/SMBus port, the Master I2C/SMBus Engine is for you. Please let me know if you find it useful. I don't know how long it will be at the link below and was wondering if perhaps the PICLIST could host the ZIP file? I've released it at: http://members.localnet.com/~kmmp/PIC/MISE/ Just download MISE.zip. It's approximately 750 Kbytes. MISE Documentation file: ----------------------- Master I2C SMBus Engine - v1_0_0.pdf MISE HEX files: --------------- Master I2C SMBus Engine - PIC16F877 - v1_0.hex (for PIC16F877 devices only) Master I2C SMBus Engine - PIC16F877A - v1_0.hex (for PIC16F877A devices only) MISE ActiveX DLL: ----------------- MISE.dll Sample Visual Basic 6.0 project files that demonstrates the MISE ActiveX DLL: ---------------------------------------------------------------------------- - MISE test application.vbp MISE test application.vbw MISE test application.frm MISE test application.frx Please don't get discouraged if you can't get the file. I'm not sure if my ISP will oppose and limits on how many times it can be downloaded in a given period of time. Let me know if you see any problems or need help or just want to send me feedback. If necessary you can contact me offline at: no_spam@localnet.com Best regards, Ken Pergola -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.