Or is it even possible to (re-)program and repurpose the JTAG header as GPIO during normal operations? With their open base and collector respectively, these particular TX & RX modules (though the latter should better be replaced with a superhet) might even interface with 3,3V without putting the ARM's voltage tolerance in jeopardy (at the PSU's 5V or even up to 12V if it supplies these anywhere), cf.
not even for serial) on their board (no header needed if accessible at least as solder pads or pins) that might drive the Bodhi-ported lirc_rpi for RF(-to-IR) remote control transceivers such as (cf. While taking Pogo E02s apart, have you had a chance to identify GPIO pins otherwise unused (i.e.
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