joliebrise
New Member
My Tai Chi metronome works using a digital10k potentiometer to select and display timings of 2 to 5 seconds beats.
My problem is to increase the "sound" output.
I have tried OpAmps and Darlington pair with little effect, once using a 100R preset to reduce volume.
I looked at using the "sound" digital pause pulse to trigger a 555 to allow me to control the volume but it does not like the trigger pulse to be held on for too long.
The trigger/reset pulses are the wrong polarity.
DAC digital to analog is a solution but I cannot see what and how this is achieved with Picaxe.
First thing is to read the "Sound" output as an eigth bit binary code. ( My 8 bit led display uses %00001100 to light a led bar.)
I know the voltage will be in steps and not continous which is similar to the digital potentiomenter as it has 64 resistor steps. This is not a problem.
I have read many articles with nothing applicable to my needs.
Sound b.1, (50,50) : Pause 2106 :
How can Picaxe help?
Thanks Tony
My problem is to increase the "sound" output.
I have tried OpAmps and Darlington pair with little effect, once using a 100R preset to reduce volume.
I looked at using the "sound" digital pause pulse to trigger a 555 to allow me to control the volume but it does not like the trigger pulse to be held on for too long.
The trigger/reset pulses are the wrong polarity.
DAC digital to analog is a solution but I cannot see what and how this is achieved with Picaxe.
First thing is to read the "Sound" output as an eigth bit binary code. ( My 8 bit led display uses %00001100 to light a led bar.)
I know the voltage will be in steps and not continous which is similar to the digital potentiomenter as it has 64 resistor steps. This is not a problem.
I have read many articles with nothing applicable to my needs.
Sound b.1, (50,50) : Pause 2106 :
How can Picaxe help?
Thanks Tony