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restructure: splitting out sensor functions into their own source files

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This commit is contained in:
A.M. Rowsell 2026-06-27 14:12:43 -04:00
commit a6211b4c9d
8 changed files with 184 additions and 70 deletions
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aht.c Normal file
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#include "aht.h"
#include "hardware/i2c.h"
#include "pico/stdlib.h"
static const uint8_t AHT_MEASURE[3] = {0xAC, 0x33, 0x00};
void getAHTData(double *t, double *h) {
uint8_t result[6];
uint32_t temperature;
uint32_t humidity;
i2c_write_blocking(i2c_default, AHT_ADDR, AHT_MEASURE, 3,
false); // trigger measurement
// now we must delay ~100ms
sleep_ms(100);
i2c_read_blocking(i2c_default, AHT_ADDR, result, 6,
false); // read 6 bytes back
humidity = (result[1] << 12) | (result[2] << 4) | (result[3] & 0xF0) >> 4;
temperature = (result[3] & 0x0F) << 16 | (result[4] << 8) | result[5];
*t = (((double)temperature / 1048576.0f) * 200.0f) - 50.0f;
*h = ((double)humidity / 1048576.0f) * 100.0f;
return;
}