mirror of
https://github.com/Threnklyn/esphome-dev.git
synced 2026-05-22 13:48:29 +02:00
Otto Winter
6682c43dfa
## Description: Move esphome-core codebase into esphome (and a bunch of other refactors). See https://github.com/esphome/feature-requests/issues/97 Yes this is a shit ton of work and no there's no way to automate it :( But it will be worth it 👍 Progress: - Core support (file copy etc): 80% - Base Abstractions (light, switch): ~50% - Integrations: ~10% - Working? Yes, (but only with ported components). Other refactors: - Moves all codegen related stuff into a single class: `esphome.codegen` (imported as `cg`) - Rework coroutine syntax - Move from `component/platform.py` to `domain/component.py` structure as with HA - Move all defaults out of C++ and into config validation. - Remove `make_...` helpers from Application class. Reason: Merge conflicts with every single new integration. - Pointer Variables are stored globally instead of locally in setup(). Reason: stack size limit. Future work: - Rework const.py - Move all `CONF_...` into a conf class (usage `conf.UPDATE_INTERVAL` vs `CONF_UPDATE_INTERVAL`). Reason: Less convoluted import block - Enable loading from `custom_components` folder. **Related issue (if applicable):** https://github.com/esphome/feature-requests/issues/97 **Pull request in [esphome-docs](https://github.com/esphome/esphome-docs) with documentation (if applicable):** esphome/esphome-docs#<esphome-docs PR number goes here> ## Checklist: - [ ] The code change is tested and works locally. - [ ] Tests have been added to verify that the new code works (under `tests/` folder). If user exposed functionality or configuration variables are added/changed: - [ ] Documentation added/updated in [esphomedocs](https://github.com/OttoWinter/esphomedocs).
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
#include "pcf8574_display.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace lcd_pcf8574 {
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static const char *TAG = "lcd_pcf8574";
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void PCF8574LCDDisplay::setup() {
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ESP_LOGCONFIG(TAG, "Setting up PCF8574 LCD Display...");
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if (!this->write_bytes(0x08, nullptr, 0)) {
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this->mark_failed();
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return;
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}
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LCDDisplay::setup();
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}
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void PCF8574LCDDisplay::dump_config() {
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ESP_LOGCONFIG(TAG, "PCF8574 LCD Display:");
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ESP_LOGCONFIG(TAG, " Columns: %u, Rows: %u", this->columns_, this->rows_);
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LOG_I2C_DEVICE(this);
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LOG_UPDATE_INTERVAL(this);
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if (this->is_failed()) {
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ESP_LOGE(TAG, "Communication with LCD Display failed!");
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}
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}
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void PCF8574LCDDisplay::write_n_bits(uint8_t value, uint8_t n) {
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if (n == 4) {
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// Ugly fix: in the super setup() with n == 4 value needs to be shifted left
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value <<= 4;
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}
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uint8_t data = value | 0x08; // Enable backlight
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this->write_bytes(data, nullptr, 0);
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// Pulse ENABLE
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this->write_bytes(data | 0x04, nullptr, 0);
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delayMicroseconds(1); // >450ns
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this->write_bytes(data, nullptr, 0);
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delayMicroseconds(100); // >37us
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}
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void PCF8574LCDDisplay::send(uint8_t value, bool rs) {
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this->write_n_bits((value & 0xF0) | rs, 0);
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this->write_n_bits(((value << 4) & 0xF0) | rs, 0);
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}
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} // namespace lcd_pcf8574
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} // namespace esphome
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