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feat(ds18b20): upgrade the example to use ds18b20 version 0.2

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morris
2025-09-08 10:23:54 +08:00
parent a157181399
commit 2991bcaa91
2 changed files with 9 additions and 5 deletions
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2
examples/peripherals/rmt/onewire/main/idf_component.yml
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@@ -1,2 +1,2 @@
dependencies: dependencies:
ds18b20: "^0.1.0" ds18b20: "^0.2.0"

12
examples/peripherals/rmt/onewire/main/onewire_example_main.c
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@@ -45,8 +45,11 @@ void app_main(void)
search_result = onewire_device_iter_get_next(iter, &next_onewire_device); search_result = onewire_device_iter_get_next(iter, &next_onewire_device);
if (search_result == ESP_OK) { // found a new device, let's check if we can upgrade it to a DS18B20 if (search_result == ESP_OK) { // found a new device, let's check if we can upgrade it to a DS18B20
ds18b20_config_t ds_cfg = {}; ds18b20_config_t ds_cfg = {};
if (ds18b20_new_device(&next_onewire_device, &ds_cfg, &ds18b20s[ds18b20_device_num]) == ESP_OK) { onewire_device_address_t address;
ESP_LOGI(TAG, "Found a DS18B20[%d], address: %016llX", ds18b20_device_num, next_onewire_device.address); // wrap the generic 1-wire device into a DS18B20 sensor device
if (ds18b20_new_device_from_enumeration(&next_onewire_device, &ds_cfg, &ds18b20s[ds18b20_device_num]) == ESP_OK) {
ds18b20_get_device_address(ds18b20s[ds18b20_device_num], &address);
ESP_LOGI(TAG, "Found a DS18B20[%d], address: %016llX", ds18b20_device_num, address);
ds18b20_device_num++; ds18b20_device_num++;
if (ds18b20_device_num >= EXAMPLE_ONEWIRE_MAX_DS18B20) { if (ds18b20_device_num >= EXAMPLE_ONEWIRE_MAX_DS18B20) {
ESP_LOGI(TAG, "Max DS18B20 number reached, stop searching..."); ESP_LOGI(TAG, "Max DS18B20 number reached, stop searching...");
@@ -70,9 +73,10 @@ void app_main(void)
float temperature; float temperature;
while (1) { while (1) {
vTaskDelay(pdMS_TO_TICKS(200)); vTaskDelay(pdMS_TO_TICKS(200));
// trigger temperature conversion for all DS18B20s on the bus
ESP_ERROR_CHECK(ds18b20_trigger_temperature_conversion_for_all(bus));
// read temperature from each DS18B20
for (int i = 0; i < ds18b20_device_num; i ++) { for (int i = 0; i < ds18b20_device_num; i ++) {
ESP_ERROR_CHECK(ds18b20_trigger_temperature_conversion(ds18b20s[i]));
ESP_ERROR_CHECK(ds18b20_get_temperature(ds18b20s[i], &temperature)); ESP_ERROR_CHECK(ds18b20_get_temperature(ds18b20s[i], &temperature));
ESP_LOGI(TAG, "temperature read from DS18B20[%d]: %.2fC", i, temperature); ESP_LOGI(TAG, "temperature read from DS18B20[%d]: %.2fC", i, temperature);
} }