Electronic OBDII Gauge on Luminardo

Let’s make something more complex using Luminardo, a Bluetooth dongle, a OBDII translator ELM327 and a 128×64 pixels graphical monochrome OLED display SSD1306. The plan would be to utilise USB host functionality to communicate to ELM327 via SPP interface and represent such parameters as engine RPM, vehicle speed, battery voltage, remaining fuel on a display. […]

Luminardo + Bluetooth dongle: to be or not to be?

Our next goal would be to establish communication between Luminardo and ELM327 OBDII Bluetooth adapter like the one shown on the picture below. The adapter allows not to interfere with wires and therefore eliminates (or at least minimises) chances of running into problems with car’s onboard electronics, however, Bluetooth link adds up an additional complexity […]