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| Both sides previous revision Previous revision Next revision | Previous revision | ||
| en:netzer:servo [2011/12/13 16:56] – holtmann | en:netzer:servo [2025/06/11 20:42] (current) – external edit 127.0.0.1 | ||
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| ====== Connection of a scale model servo ====== | ====== Connection of a scale model servo ====== | ||
| - | {{ : | + | <note important> |
| - | The pulse outputs IO3 and SPI_INT can be directly connected to conventional [[wpde>Servo|scale model servos]]. | + | {{ : |
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| + | The pulse outputs IO3 and SPI_INT can be directly connected to conventional [[wp>Servo_%28radio_control%29|scale model servos]]. | ||
| The pulse input of the servos is directly connected to IO3 or SPI_INT. Of course, mass is connected to mass. The voltage supply should be about 5\ V. | The pulse input of the servos is directly connected to IO3 or SPI_INT. Of course, mass is connected to mass. The voltage supply should be about 5\ V. | ||
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| At the Netzer, the settings should be carried out as shown in the figure (IO configuration page). | At the Netzer, the settings should be carried out as shown in the figure (IO configuration page). | ||
| - | {{ :de:netzer:servoconfig.gif? | + | {{ servoconfig.gif |Servo configuration}} |
| The periodic time results from the internal 16-bit counter for continuous pulse signals: 65536\ *\ 400\ ns\ =\ 26,21\ ms. | The periodic time results from the internal 16-bit counter for continuous pulse signals: 65536\ *\ 400\ ns\ =\ 26,21\ ms. | ||
| - | Some servos can definitely cope with 13.1\ ms (unit=200\ ns), you should just try it. The advantage of using the smaller unit is that the servo may be addressed in smaller steps. | + | Some servos can definitely cope with 13.1\ ms (unit\ =\ 200\ ns), you should just try it. The advantage of using the smaller unit is that the servo may be addressed in smaller steps. |
| In the following please find a table with some example values. Due to the deviations in the periodic times, the values probably require slight adjustments. | In the following please find a table with some example values. Due to the deviations in the periodic times, the values probably require slight adjustments. | ||
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| | 400 ns | 2375 (0x947) | 3750 (0xea6) | 5125 (0x1405) | | | 400 ns | 2375 (0x947) | 3750 (0xea6) | 5125 (0x1405) | | ||
| | 200 ns | 4750 (0x128e) | 7500 (0x1d4c) | 10250 (0x280a) | | | 200 ns | 4750 (0x128e) | 7500 (0x1d4c) | 10250 (0x280a) | | ||
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