New answers tagged pins
0
The analogWrite function checks the PIN_ATTR_ANALOG attribute from pin description in variant.cpp to determine if the pin has DAC capability. Then it checks if the pin is ADC_Channel0 or DAC_Channel0. This is unnecessary and redundant. There is no other use for DAC_Channel0.
In Arduino SAMD core and derived cores the pin 'map' in variant.cpp defines pin ...
1
As far as I can see, the relay will stay on when val is less or equal than 500, and stay off when val is higher than 500.
However, there might be a problem when val keeps fastly moving around 500; it will switch on and off quite fast.
To prevent this, you should make two 'triggers', e.g. turn it on when the value <= 480, and turn it off when the value >=...
0
I didnt try this method but; when i check the data sheet, i found this code on last page:
sbit ADDO = P1^5;
sbit ADSK = P0^0;
unsigned long ReadCount(void){
unsigned long Count;
unsigned char i;
ADDO=1;
ADSK=0;
Count=0;
while(ADDO);
for (i=0;i<24;i++){
ADSK=1;
Count=Count<<1;
ADSK=0;
...
0
According to library, hx711 sending pulses to mcu and we are scaling with take this pulses. I think you must connect DOUT and SCK pins directly to the MCU or you must counting pulses via I2C after all create a scaling value according the library code and send it to mcu.
0
First this should be like this:
float* values= mq2.read(false); //false
and then write this to be printed in the serial monitor
Serial.print('\n');
Serial.print("LPG:");
Serial.print(lpg);
Serial.print(" CO:");
Serial.print(co);
Serial.print('\n');
Serial.print("SMOKE:");
Serial.print(smoke);
Serial.print(" PPM");
Serial.print('\n');
Top 50 recent answers are included
