potentiostat-mcp4725
antoniorrg/program-potentiostat/potentiostat-mcp4725
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potentiostat-mcp4725
@/potentiostat-mcp4725
IN@/potentiostat-mcp4725-device
PORTport
Set the port where the current measurements will be taken.
Vmaxnumber
Set the maximum voltage (in Volts) for the cyclic voltammetry experiment, up to a maximum of 5 V.
Vlownumber
Set the minimum voltage (in Volts) for the cyclic voltammetry experiment, up to a minimum of 0 V.
NCyclesnumber
Indicate the number of Cycles that the program will run
Ratenumber
Indicate the rate at which the experiment will be performed (in mV/s).
UPDpulse
Currentnumber
C++ implementation
#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_UPD
node {
// Internal state variables defined at this level persists across evaluations
Number foo;
uint8_t bar = 5;
void evaluate(Context ctx) {
bar += 42;
if (isSettingUp()) {
// This run once
foo = (Number)(bar + 1);
}
int x;
uint16_t counter;
static_assert(isValidAnalogPort(constant_input_PORT), "must be a valid analog port");
if (!isInputDirty<input_UPD>(ctx))
return;
Number y;
::pinMode(constant_input_PORT, INPUT);
int rate2;
float rate;
float Vmax;
float Vlow;
int cycle;
int NCycles;
auto dac = getValue<input_IN>(ctx);
NCycles = getValue<input_NCycles>(ctx);
rate = getValue<input_Rate>(ctx);
Vlow = getValue<input_Vlow>(ctx);
Vmax = getValue<input_Vmax>(ctx);
rate2 = (rate/1.22) * 1000;
Vlow = Vlow/0.00122;
Vmax = Vmax/0.00122;
for (cycle=0; cycle<NCycles; cycle++){
for (counter = Vlow; counter < Vmax; counter++)
{
dac->setVoltage(counter, false);
x = analogRead(constant_input_PORT);
emitValue<output_Current>(ctx, x);
delay (rate2);
}
for (counter = Vmax; counter > Vlow; counter--)
{
dac->setVoltage(counter, false);
x = analogRead(constant_input_PORT);
emitValue<output_Current>(ctx, x);
delay (rate2);
}
}
}
}