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https://github.com/esphome/esphome.git
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52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
#include "sm16716.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace sm16716 {
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static const char *const TAG = "sm16716";
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void SM16716::setup() {
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ESP_LOGCONFIG(TAG, "Setting up SM16716OutputComponent...");
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this->data_pin_->setup();
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this->data_pin_->digital_write(false);
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this->clock_pin_->setup();
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this->clock_pin_->digital_write(false);
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this->pwm_amounts_.resize(this->num_channels_, 0);
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}
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void SM16716::dump_config() {
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ESP_LOGCONFIG(TAG, "SM16716:");
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LOG_PIN(" Data Pin: ", this->data_pin_);
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LOG_PIN(" Clock Pin: ", this->clock_pin_);
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ESP_LOGCONFIG(TAG, " Total number of channels: %u", this->num_channels_);
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ESP_LOGCONFIG(TAG, " Number of chips: %u", this->num_chips_);
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}
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void SM16716::loop() {
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if (!this->update_)
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return;
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for (uint8_t i = 0; i < 50; i++) {
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this->write_bit_(false);
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}
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// send 25 bits (1 start bit plus 24 data bits) for each chip
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for (uint8_t index = 0; index < this->num_channels_; index++) {
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// send a start bit initially and after every 3 channels
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if (index % 3 == 0) {
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this->write_bit_(true);
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}
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this->write_byte_(this->pwm_amounts_[index]);
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}
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// send a blank 25 bits to signal the end
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this->write_bit_(false);
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this->write_byte_(0);
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this->write_byte_(0);
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this->write_byte_(0);
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this->update_ = false;
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}
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} // namespace sm16716
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} // namespace esphome
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