55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/*
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* Example of using DS1302 RTC driver
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*
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* Part of esp-open-rtos
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* Copyright (C) 2016 Ruslan V. Uss <unclerus@gmail.com>
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* Pavel Merzlyakov <merzlyakovpavel@gmail.com>
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* BSD Licensed as described in the file LICENSE
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*/
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#include <esp/uart.h>
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#include <espressif/esp_common.h>
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#include <stdio.h>
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#include <i2c/i2c.h>
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#include <ads111x/ads111x.h>
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#include <FreeRTOS.h>
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#include <task.h>
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// Connect ADDR pin to GND
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#define ADDR ADS111X_ADDR_GND
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#define SCL_PIN 5
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#define SDA_PIN 4
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// +-4.096V
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#define GAIN ADS111X_GAIN_4V096
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void user_init(void)
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{
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uart_set_baud(0, 115200);
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printf("SDK version:%s\n", sdk_system_get_sdk_version());
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i2c_init(SCL_PIN, SDA_PIN);
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ads111x_set_mode(ADDR, ADS111X_MODE_CONTUNOUS);
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ads111x_set_data_rate(ADDR, ADS111X_DATA_RATE_32);
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ads111x_set_input_mux(ADDR, ADS111X_MUX_0_GND);
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ads111x_set_gain(ADDR, GAIN);
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float gain_val = ads111x_gain_values[GAIN];
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while (true)
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{
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// wait for conversion end
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while (ads111x_busy(ADDR)) {}
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// Read result
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int16_t raw = ads111x_get_value(ADDR);
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float voltage = gain_val / ADS111X_MAX_VALUE * raw;
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printf("Raw ADC value: %d, voltage: %.04f volts\n", raw, voltage);
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vTaskDelay(500 / portTICK_PERIOD_MS);
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}
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}
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