Instructions: Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.
Input: I have 2 of these and I am unable to get either to work. I use a PL2303HX based USB to Serial adapter (http://www.amazon.com/JBtek%C2%AE-WINDOWS-Supported-Raspberry-Programming/dp/B00QT7LQ88/ref=cm_cr_pr_product_top?ie=UTF8), which is 3.3 volt and works with an HC05 base board (https://www.amazon.com/gp/product/B00L083QAC/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1). But have not been able to get anything from these.<br />I have tried to pull the 'KEY' to VCC as described in the pdf file but it has not affect.
Output:
Negative Review