Differences
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| Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
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en:c1_hardware_1w [2015/02/02 09:38] mdrjr |
en:c1_hardware_1w [2017/05/04 18:46] odroid |
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| Line 7: | Line 7: | ||
| Default GPIO for 1-Wire is **Pin #7 (GPIO83)** | Default GPIO for 1-Wire is **Pin #7 (GPIO83)** | ||
| - | * Connection: | + | * **Connection: With External-Supply** |
| - | {{:en:untitled_sketch_bb.png?750|}} | + | {{:en:1-wire-external-power.png?750|}} |
| Pin 1 (Left): Ground (-) | Pin 1 (Left): Ground (-) | ||
| Line 16: | Line 16: | ||
| Pin 3 (Right): VCC (3.3V) | Pin 3 (Right): VCC (3.3V) | ||
| - | You also need to add a resistor from 4.7k to 10k between pin 2 and 3. | + | You also need to add a resistor from 4.7k to 10k between pin 2. |
| + | * **Connection: Supplying the Parasite-Powered** | ||
| + | {{:en:1-wire-parasite-power.png?750|}} | ||
| + | |||
| + | Pin 1 (Left): Ground (-) | ||
| + | |||
| + | Pin 2 (Middle): Pin #7 C1 | ||
| + | |||
| + | Pin 3 (Right): Ground (-) | ||
| + | |||
| + | You also need to add a resistor from 4.7k to 10k between pin 2. | ||
| * Load the required kernel modules: <code>modprobe w1-gpio && modprobe w1-therm</code> | * Load the required kernel modules: <code>modprobe w1-gpio && modprobe w1-therm</code> | ||
