Cunstruire unui receptor FM folosind modulul TEA5767

Old wish to make digitally controlled FM tuner come true when I found on Ebay cheap module with TEA5767 (Low-power FM stereo radio for handheld applications). This module size is only 11.2mm x 11mm. TEA 5767 supports I2C.  Pinout and wiring: For antenna i have used just 75 cm long wire, because that is 1/4 […]

Monitorizarea amperajului cu ajutorul senzorului ACS712

int VQ; int ACSPin = A2;void setup() { Serial.begin(9600); VQ = determineVQ(ACSPin); //Quiscent output voltage – the average voltage ACS712 shows with no load (0 A) delay(1000); } void loop() { Serial.print(„ACS712@A2:”);Serial.print(readCurrent(ACSPin),3);Serial.println(” mA”); delay(150); } int determineVQ(int PIN) { Serial.print(„estimating avg. quiscent voltage:”); long VQ = 0; //read 5000 samples to stabilise value for (int […]