scip/attinycore-makefile-tests
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testing Vbg reading

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This commit is contained in:
Thomas von Dein
2020-03-02 21:27:34 +01:00
parent d8248ffac2
commit 0fb1be4440
1 changed files with 20 additions and 3 deletions
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23
841-tinycore-micronucleus-bme280-spi-radio-test/SensorSerial.ino
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@@ -31,6 +31,8 @@ SDO/MISO PA5 PA6 SDI/MOSI
*/ */
#include <avr/io.h>
#define TINY_BME280_SPI #define TINY_BME280_SPI
#include <TinyBME280.h> #include <TinyBME280.h>
@@ -45,6 +47,7 @@ SDO/MISO PA5 PA6 SDI/MOSI
static tiny::BME280 sensor; static tiny::BME280 sensor;
RFTransmitter transmitter(OUTPUT_PIN, NODE_ID); RFTransmitter transmitter(OUTPUT_PIN, NODE_ID);
const long InternalReferenceVoltage = 1083L;
#define SET_OUTPUT(pin) DDRB |= (1 << pin) #define SET_OUTPUT(pin) DDRB |= (1 << pin)
#define SET_HIGH(pin) PORTB |= (1 << pin) #define SET_HIGH(pin) PORTB |= (1 << pin)
@@ -84,8 +87,6 @@ void print_measurements() {
print_asufloat(humidity, 1000); print_asufloat(humidity, 1000);
Serial.println(" %"); Serial.println(" %");
Serial.println();
transmitter.send((byte *)temp, sizeof(temp)); transmitter.send((byte *)temp, sizeof(temp));
SET_HIGH(LED); SET_HIGH(LED);
} }
@@ -94,10 +95,26 @@ void halt() {
while(1); while(1);
} }
void print_voltage() {
int value;
ADCSRA |= _BV( ADSC );
while( ( (ADCSRA & (1<<ADSC)) != 0 ) );
value = (((InternalReferenceVoltage * 1024L) / ADC) + 5L) / 10L;
Serial.print(" Voltage: ");
Serial.println(value);
Serial.println();
}
void setup() { void setup() {
SET_OUTPUT(LED); SET_OUTPUT(LED);
Serial.begin(115200); Serial.begin(115200);
Serial.println("init"); Serial.println("init");
// Enable ADC
ADCSRA |= (1 << ADEN);
ADMUXB = (0<<REFS2) | (1<<REFS1) | (0<<REFS0);
ADMUXA = (0<<MUX5) | (0<<MUX4) | (0<<MUX3) | (0<<MUX2) | (0<<MUX1) | (1<<MUX0);
ADCSRB = (0<<ADLAR);
//analogReference( INTERNAL );
if(sensor.beginSPI(CS) == false) { if(sensor.beginSPI(CS) == false) {
Serial.println("Sensor BME280 connect failed, check wiring!"); Serial.println("Sensor BME280 connect failed, check wiring!");
@@ -105,9 +122,9 @@ void setup() {
} }
} }
void loop() { void loop() {
print_measurements(); print_measurements();
print_voltage();
delay(DELAY); delay(DELAY);
} }