Matrix user forums

Hello,

I am not quite sure of how to connect ADC on the matrix development board please i need your help. I have programs on adc ΓΊsing the simulator but i donΒ΄t know about the physical connections Γ³f adc on the board unlike keypad lcd and switch which are easy to identify on the board.

Regards.

Hello

On the matrix development board HP488 V3 there are four jumpers marked J14 that are connected to pins RA0 to RA3.

Moving the jumpers to the analogue ANA position allows the pins to be connected to analogue input sources and disconnects the digital switch and LED.

When the jumpers are in the ANA position channel 0 is connected to the onboard LDR and channel 1 is connected to the onboard Pot RV3.

The other two channels are free for your use so you could either use the port A screw terminals or you can use the analogue vernier sensor socket.

Thanx Benj.