Reply To: Alternative hardware

[loop_1]

🙂

ok the parts to change are this:

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void OpenSprinkler::begin() {

// shift register setup

pinMode(PIN_SR_OE, OUTPUT);

// pull shift register OE high to disable output

digitalWrite(PIN_SR_OE, HIGH);

pinMode(PIN_SR_LATCH, OUTPUT);

digitalWrite(PIN_SR_LATCH, HIGH);

 

pinMode(PIN_SR_CLOCK, OUTPUT);

pinMode(PIN_SR_DATA,  OUTPUT);

 

// Reset all stations

clear_all_station_bits();

apply_all_station_bits();

 

// pull shift register OE low to enable output

digitalWrite(PIN_SR_OE, LOW);

 

// Rain sensor port set up

pinMode(PIN_RAINSENSOR, INPUT);

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and this:

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// Apply all station bits

// !!! This will activate/deactivate valves !!!

void OpenSprinkler::apply_all_station_bits() {

digitalWrite(PIN_SR_LATCH, LOW);

byte bid, s, sbits;

// Shift out all station bit values

// from the highest bit to the lowest

for(bid=0;bid<=MAX_EXT_BOARDS;bid++) {

if (status.enabled)

sbits = station_bits[MAX_EXT_BOARDS-bid];

else

sbits = 0;

for(s=0;s<8;s++) {

digitalWrite(PIN_SR_CLOCK, LOW);

digitalWrite(PIN_SR_DATA, (sbits & ((byte)1<<(7-s))) ? HIGH : LOW );

digitalWrite(PIN_SR_CLOCK, HIGH);

}

}

digitalWrite(PIN_SR_LATCH, HIGH);

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but i don’t undestand the function of pins PIN_SR_LATCH and PIN_SR_OE that i think to change with my pin outputs that are GPIO 17 (main pump) and GPIO18, GPIO22 and GPIO27 for the three zones. The pins PIN_SR_DATA and PIN_SR_CLOCK are for serial communication with the opensprinkler board, i think…