I bought a batch of these for my own purposes but can release some.
£50 GBP each as they are or £75 modified to run and power from usb port.
They are almost certainly the circuit board used in the evaluation kit but I can't say for sure.
In any case they are equivalent in function. I can supply pinout and equivalent circuit information with them. If you buy the basic board from me I can supply details how to do the usb modification.
everything you need is on the board, antenna short circuit protection, backup capacitor ( although you might want to put a supercap there instead), voltage regulator for the LEA-4T chip. supply decoupling etc
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