69 lines
1.7 KiB
C++
69 lines
1.7 KiB
C++
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#include "geiger_counter_sensor.h"
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#include "esphome/core/log.h"
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#include "esphome.h"
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namespace esphome {
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namespace geiger_counter_sensor {
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static const char *TAG = "geiger_counter_sensor.sensor";
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void GeigerCounterSensor::setup() {
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ESP_LOGCONFIG(TAG, "Setting up Geiger Counter Sensor...");
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}
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void GeigerCounterSensor::loop() {
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const int max_line_length = 80;
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static char buffer[max_line_length];
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while (available()) {
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if(readline(read(), buffer, max_line_length) > 0) {
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int cpm = atof(buffer);
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float usv = cpm * 0.0057;
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ESP_LOGCONFIG(TAG, "Received radiation level: %d cpm, %.2f μSv", cpm, usv);
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this->publish_state(usv);
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}
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}
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}
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void GeigerCounterSensor::dump_config() {
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LOG_SENSOR("", "Geiger Counter Sensor", this);
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}
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void GeigerCounterSensor::update() {
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}
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} // namespace geiger_counter_sensor
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} // namespace esphome
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int readline(int readch, char *buffer, int len) {
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static int pos = 0;
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int rpos;
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if (readch > 0) {
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switch (readch) {
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case '\n':
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case '\r': // Return on CR or newline
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buffer[pos] = 0; // Just to be sure, set last character 0
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rpos = pos;
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pos = 0; // Reset position index ready for next time
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return rpos;
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default:
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if ((pos < len-1) && ( readch < 127 )) { // Filter on <127 to make sure it is a character
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buffer[pos++] = readch;
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buffer[pos] = 0;
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}
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else
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{
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buffer[pos] = 0; // Just to be sure, set last character 0
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rpos = pos;
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pos = 0; // Reset position index ready for next time
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return rpos;
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}
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}
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}
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// No end of line has been found, so return -1.
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return -1;
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}
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