ESPHome 2025.5.0
Loading...
Searching...
No Matches
mcp3204.cpp
Go to the documentation of this file.
1#include "mcp3204.h"
2#include "esphome/core/log.h"
3
4namespace esphome {
5namespace mcp3204 {
6
7static const char *const TAG = "mcp3204";
8
10
12 ESP_LOGCONFIG(TAG, "Setting up mcp3204");
13 this->spi_setup();
14}
15
17 ESP_LOGCONFIG(TAG, "MCP3204:");
18 LOG_PIN(" CS Pin:", this->cs_);
19 ESP_LOGCONFIG(TAG, " Reference Voltage: %.2fV", this->reference_voltage_);
20}
21
22float MCP3204::read_data(uint8_t pin) {
23 uint8_t adc_primary_config = 0b00000110 | (pin >> 2);
24 uint8_t adc_secondary_config = pin << 6;
25 this->enable();
26 this->transfer_byte(adc_primary_config);
27 uint8_t adc_primary_byte = this->transfer_byte(adc_secondary_config);
28 uint8_t adc_secondary_byte = this->transfer_byte(0x00);
29 this->disable();
30 uint16_t digital_value = (adc_primary_byte << 8 | adc_secondary_byte) & 0b111111111111;
31 return float(digital_value) / 4096.000 * this->reference_voltage_;
32}
33
34} // namespace mcp3204
35} // namespace esphome
float read_data(uint8_t pin)
Definition mcp3204.cpp:22
void dump_config() override
Definition mcp3204.cpp:16
float get_setup_priority() const override
Definition mcp3204.cpp:9
void setup() override
Definition mcp3204.cpp:11
const float HARDWARE
For components that deal with hardware and are very important like GPIO switch.
Definition component.cpp:18
Providing packet encoding functions for exchanging data with a remote host.
Definition a01nyub.cpp:7