Several projects are underway, but are pretty low priority time-wise.
Remote sensor. Measures two 12V sensor inputs (digital on/off) and ambient temperature.
Communicates with remote inquiry source using RS-485.
(RS-485 is a single pair, differential, bidirectional serial communications hardware standard.)
Display. Gathers data from remote sensor(s) using RS-485 hardware and software polling protocol.
First usage would be for measuring speed and fuel injector modulation to calculate and display miles per gallon consumption rate.
Intended to fit a 1" x 2" available panel space on one of my existing vehicles, which due to a manufacturer
software bug does not deliver the data needed for commercial MPG indicators (1998 Ford Ranger).
LED flasher for fake alarm indicator. Flashes an LED when ignition power is off. Low power consumption.