This is a ECG generator. Whit eight bits resolution. Need a Bidirectional Shift Register and eigth bits DAC connected on the shift register output. The c code shows all the pins include the lcd. Please remember use the flexlcd. c library.-This is a ECG generator. Whit eight bits resolution. Need a Bidirectional Shift Register and eigth bits DAC connected on the shift register output. The c code shows all the pins include the lcd. Please remember use the flexlcd. c library.