A quality product, worked with no hassles.
For E2191 Serial to IRDA Transceiver
Thank you for making this transceiver. Although a niche application, the design of the PCB was compact and of high quality, and the documentation quite thorough. I connected it to a serial UART and it worked perfectly the first time (after a reset to the PCB.)
I would have liked to have been able to choose more options for shipping, to trade off speed and package size vs. cost, but that does not detract from the maker or from this device.