Leaving the dashboard for a moment and going back to the in-car entertainment, I've noticed that DAB modules are quite expensive. Much more expensive than desktop DAB radios in fact. I was in Tesco today and saw a DAB alarm/clock/radio for £5. Five pounds. Well, that's got to be worth a poke - even if it lasts 10 minutes before I've blown it up it'll be good value. Inside there are three boards. The smallest board takes 5V in and offers a headphone out via an 8-pin TSOP amplifier. The largest board runs the MMI and houses the screen and all of the buttons. That's connected via a 14-pin ribbon to the main event - a Gyro-1130E DAB module from GyroSignal Technology Co Ltd . This FM/DAB module drives the single speaker directly, sends a 5 pin (differential) stereo audio to the headphone amplifier and carries a ton of plated through holes along each of, 14 of which go the MMI board as I mentioned before. The interesting bits are mostly hidden under a large can labe
Showing posts from January, 2014
- Other Apps
- Other Apps
I've elected to stay with 8-bit mode as I need the pins as GPIO. Text rendering works well provided you are careful to over print a region rather than blanking it first (which causes a flicker). The fonts came from UTFT. I might patch them to add proportional support but monospace is fine for now. I've knocked up a basic menu system too. Tired of all the wires the prototype, I ordered some PCBs from OSHpark.com. $50 for three, they should be here any day now.