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esphome-ratgdo
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Allow interrupts to be disabled during transmit (#60) 

Co-authored-by: J. Nick Koston <nick@koston.org>
This commit is contained in:
Marius Muja 2023-10-06 15:54:49 -07:00 committed by GitHub
parent 9bc41c2661
commit fe593a9a76
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1 changed files with 9 additions and 15 deletions
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24
components/ratgdo/ratgdo.cpp
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@ -51,6 +51,7 @@ namespace ratgdo {
this->input_obst_pin_->attach_interrupt(RATGDOStore::isr_obstruction, &this->isr_store_, gpio::INTERRUPT_FALLING_EDGE);
}
this->sw_serial_.begin(9600, SWSERIAL_8N1, this->input_gdo_pin_->get_pin(), this->output_gdo_pin_->get_pin(), true);
this->sw_serial_.enableIntTx(false);
ESP_LOGV(TAG, "Syncing rolling code counter after reboot...");
@ -390,15 +391,6 @@ namespace ratgdo {
send_command(Command::GET_OPENINGS);
}
/************************* DOOR COMMUNICATION *************************/
/*
* Transmit a message to the door opener over uart1
* The TX1 pin is controlling a transistor, so the logic is inverted
* A HIGH state on TX1 will pull the 12v line LOW
*
* The opener requires a specific duration low/high pulse before it will accept
* a message
*/
void RATGDOComponent::send_command(Command command, uint32_t data, bool increment)
{
if (!this->transmit_pending_) { // have an untransmitted packet
@ -420,15 +412,17 @@ namespace ratgdo {
this->transmit_pending_ = true;
return false;
}
delayMicroseconds(200);
delayMicroseconds(100);
}
this->output_gdo_pin_->digital_write(true); // pull the line high for 1305 micros so the
// door opener responds to the message
delayMicroseconds(1305);
this->output_gdo_pin_->digital_write(false); // bring the line low
// indicate the start of a frame by pulling the 12V line low for at leat 1 byte followed by
// one STOP bit, which indicates to the receiving end that the start of the message follows
// The output pin is controlling a transistor, so the logic is inverted
this->output_gdo_pin_->digital_write(true); // pull the line low for at least 1 byte
delayMicroseconds(1300);
this->output_gdo_pin_->digital_write(false); // line high for at least 1 bit
delayMicroseconds(130);
delayMicroseconds(1260); // "LOW" pulse duration before the message start
this->sw_serial_.write(this->tx_packet_, PACKET_LENGTH);
this->transmit_pending_ = false;
return true;