When playing around with a cheap, handheld, dual-band radio, , a.k.a. , found a schematic for a similar and even cheaper radio. He realized the programming pads were very accessible and the dev tools for the radio's microcontroller were available from the manufacturer. After these discoveries, there really was only one thing to do: write new firmware for a $40 radio…
April 6, 2013
Writing new firmware for a handheld radio
A definite winner; I will be doing something along the same lines with some time and effort put into figuring out the UV5R enough to control its default CPU with a second one.
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