Författare:
Per Stenebo
Per Stenebo
Skapad:
2014-07-13 12:55:16
2014-07-13 12:55:16
Ändrad:
2020-08-29 09:59:24
2020-08-29 09:59:24
ADS1015 12-Bit ADC 4 Ch. I2C
4 kanaler analog till digital omvandlare via I2C.
| Adafruit | Adafruit HowTo |
Konfigurera I2C
GPIO 2 (pin P1-03) & GPIO 3 (pin P1-05).
Pin 3 (SDA0) and Pin 5 (SCL0) are preset to be used as an I²C interface. So there are 1.8 kilohm pulls up resistors on the board for these pins.
Test med TMP36
Temperaturgivare
| Lawicel produkt | Lawicel lektion |
git clone https://github.com/adafruit/Adafruit-Raspberry-Pi-Python-Code.git
sudo mkdir /opt/i2c
sudo chown per:per /opt/i2c
cp ~/Adafruit-Raspberry-Pi-Python-Code/Adafruit_ADS1x15/ads1x15_ex_singleended.py /opt/i2c/ADS1015_TMP36.py
Justera ADS1015_TMP36.py
Exekvera: sudo python /opt/i2c/ADS1015_TMP36.py
Ch0: 0.726 = 22.6°C Ch1: 3.308 = 280.8°C Ch2: 0.000 = -50.0°C Ch3: 0.632 = 13.2°C
A0: TMP36, A1: 3.3 V, A2: 0 V, A3: ej ansluten.