We still have a few upgrade kits left for the old K42 Rev B kits. The kit includes a backlit LCD display, new display header connector, spacers, and new PSoC IC which improves the CWR reader. The upgrade procedure is not easy, please review the K42 Rev B Upgrade Guide before ordering to make sure you are up to the task: K42 Rev B Update Guide
The K40CW Board is a companion board for the K40 CW Keyboard Keyer which will allow you to decode and display CW on the K40's LCD display. The K40 CW Reader accepts audio from your receiver and decodes CW into a digital serial data that is fed into the K40 for display. Using Cypress PSoC based technology, the K40CW provides impressive copy for such a small device.
In order to use the CW Reader the K40 firmware must be upgraded to Rev G. When the K40 powers up it displays the firmware revision of the two PICs, they must both be vG to support the K40 CWR.
I have a large number of openQRP PC boards and also lots of parts. We are offering some partial kits that will include the board and a collection of the most 'difficult to find' components. More information on the openQRP radio project found under the 'Radios' tab above. Contact us for more information on the partial kit contents.