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https://github.com/esphome/esphome.git
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104 lines
3.7 KiB
C++
104 lines
3.7 KiB
C++
#include "pylontech.h"
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#include "esphome/core/log.h"
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#include "esphome/core/helpers.h"
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namespace esphome {
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namespace pylontech {
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static const char *const TAG = "pylontech";
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static const int MAX_DATA_LENGTH_BYTES = 256;
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static const uint8_t ASCII_LF = 0x0A;
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PylontechComponent::PylontechComponent() {}
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void PylontechComponent::dump_config() {
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this->check_uart_settings(115200, 1, esphome::uart::UART_CONFIG_PARITY_NONE, 8);
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ESP_LOGCONFIG(TAG, "pylontech:");
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if (this->is_failed()) {
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ESP_LOGE(TAG, "Connection with pylontech failed!");
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}
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for (PylontechListener *listener : this->listeners_) {
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listener->dump_config();
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}
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LOG_UPDATE_INTERVAL(this);
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}
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void PylontechComponent::setup() {
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ESP_LOGCONFIG(TAG, "Setting up pylontech...");
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while (this->available() != 0) {
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this->read();
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}
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}
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void PylontechComponent::update() { this->write_str("pwr\n"); }
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void PylontechComponent::loop() {
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if (this->available() > 0) {
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// pylontech sends a lot of data very suddenly
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// we need to quickly put it all into our own buffer, otherwise the uart's buffer will overflow
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uint8_t data;
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int recv = 0;
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while (this->available() > 0) {
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if (this->read_byte(&data)) {
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buffer_[buffer_index_write_] += (char) data;
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recv++;
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if (buffer_[buffer_index_write_].back() == static_cast<char>(ASCII_LF) ||
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buffer_[buffer_index_write_].length() >= MAX_DATA_LENGTH_BYTES) {
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// complete line received
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buffer_index_write_ = (buffer_index_write_ + 1) % NUM_BUFFERS;
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}
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}
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}
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ESP_LOGV(TAG, "received %d bytes", recv);
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} else {
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// only process one line per call of loop() to not block esphome for too long
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if (buffer_index_read_ != buffer_index_write_) {
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this->process_line_(buffer_[buffer_index_read_]);
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buffer_[buffer_index_read_].clear();
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buffer_index_read_ = (buffer_index_read_ + 1) % NUM_BUFFERS;
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}
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}
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}
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void PylontechComponent::process_line_(std::string &buffer) {
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ESP_LOGV(TAG, "Read from serial: %s", buffer.substr(0, buffer.size() - 2).c_str());
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// clang-format off
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// example line to parse:
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// Power Volt Curr Tempr Tlow Thigh Vlow Vhigh Base.St Volt.St Curr.St Temp.St Coulomb Time B.V.St B.T.St MosTempr M.T.St
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// 1 50548 8910 25000 24200 25000 3368 3371 Charge Normal Normal Normal 97% 2021-06-30 20:49:45 Normal Normal 22700 Normal
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// clang-format on
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PylontechListener::LineContents l{};
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char mostempr_s[6];
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const int parsed = sscanf( // NOLINT
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buffer.c_str(), "%d %d %d %d %d %d %d %d %7s %7s %7s %7s %d%% %*d-%*d-%*d %*d:%*d:%*d %*s %*s %5s %*s", // NOLINT
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&l.bat_num, &l.volt, &l.curr, &l.tempr, &l.tlow, &l.thigh, &l.vlow, &l.vhigh, l.base_st, l.volt_st, // NOLINT
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l.curr_st, l.temp_st, &l.coulomb, mostempr_s); // NOLINT
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if (l.bat_num <= 0) {
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ESP_LOGD(TAG, "invalid bat_num in line %s", buffer.substr(0, buffer.size() - 2).c_str());
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return;
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}
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if (parsed != 14) {
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ESP_LOGW(TAG, "invalid line: found only %d items in %s", parsed, buffer.substr(0, buffer.size() - 2).c_str());
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return;
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}
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auto mostempr_parsed = parse_number<int>(mostempr_s);
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if (mostempr_parsed.has_value()) {
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l.mostempr = mostempr_parsed.value();
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} else {
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l.mostempr = -300;
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ESP_LOGW(TAG, "bat_num %d: received no mostempr", l.bat_num);
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}
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for (PylontechListener *listener : this->listeners_) {
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listener->on_line_read(&l);
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}
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}
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float PylontechComponent::get_setup_priority() const { return setup_priority::DATA; }
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} // namespace pylontech
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} // namespace esphome
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