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Fluke 87IV please whisper in my IR :P

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rauldm:
I have bought a Fluke 87 IV, I like it, I have the IR189USB, but doesn't work with this meter, someone know what is the original cable for this meter?

Regards.

nikifena:
What about implementing the code to an attiny85?

BeBuLamar:

--- Quote from: rauldm on May 10, 2021, 02:28:19 am ---I have bought a Fluke 87 IV, I like it, I have the IR189USB, but doesn't work with this meter, someone know what is the original cable for this meter?

Regards.

--- End quote ---

I wonder if the 87 IV is different from the 187 and 189. I have the 189 and it works with the IR189USB cable as well as the older IR to RS-232.

rauldm:
Yes, is different, even fluke says ir189usb for 18x and 28x series, what rs 2323 oldcable have You?

masterx81:
87/89IV encode/decode the data using IrDA protocol, while the 187/189 simply send/receive to/from the ir transceiver the rs232 data, that's why it not work. In 87/89 IV there is a chip (mcu/asic/etc) between usb-232 chip and ir that encode (and decode) the data. If you look my previous posts you see that i've adopted an old cheap usb adapter found on ebay, with a chip that was doing the correct idra encoding/decoding. Studyng the protocol you can also program an mcu that do it, but i've found simpler finding something already working and adapting it to the meter.

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