Last modified by Eric Nantel on 2023/01/20 11:38

From version < 9.1 >
edited by Eric Nantel
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1 1  {{html wiki="false" clean="true"}}
2 -
2 +<body><table border="0" cellpadding="0" cellspacing="0" >
3 + <tbody><tr>
4 + <td valign="top" ><font size="2" face="verdana"><b>Servo Mid Position Tutorial.</b></font>
5 + <p><font size="2" face="verdana"><b><!--webbot bot="Timestamp" startspan s-type="EDITED" s-format="%m/%d/%Y" -->03/25/2008<!--webbot
6 + bot="Timestamp" i-checksum="12594" endspan -->.</b></font></p>
7 + <p><font size="2" face="verdana"><b>By James Frye.</b></font></p>
8 + <p><font size="2" face="verdana">Building Lynxmotion kits requires adjusting the servo to its mid position (center of rotation). In order to
9 + move the servo's output shaft to its mid position, the servo needs to receive 1.5mS, positive-going pulses every 20mS. This tutorial will cover
10 + creating the necessary pulses from off-the-shelf controllers.</font></p></td>
11 + <td align="center" valign="top" width="320"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/support/rc-servo-mid-position-tutorial/WebHome/sm150.jpg" border="2" hspace="10" width="320" height="240"><br>
12 + <font size="2" face="verdana"><strong>Too cool</strong></font><font size="2" face="verdana"><strong>!</strong></font></td>
13 + </tr>
14 + <tr>
15 + <td colspan="2">&nbsp;</td>
16 + </tr>
17 + <tr>
18 + <td valign="top" ><font size="2" face="verdana"><b>Connecting Power.<br>
19 + </b>The first step in getting your SSC-32 or Bot Board ready to control servos is to provide voltage. This is accomplished using either our
20 + BATC-01 battery cable or our WH-01 battery cable with switch. If your cable has tinned ends, cut off the tinned part and strip the plastic cover
21 + off about 1/4" from the new end. The reason for doing this is the screw terminals can't properly tighten down on a tinned wire. Remember,
22 + the red wire is (+) and the black wire is (-).</font>
23 + <p><font size="2" face="verdana">For now, make sure the VS=VL jumper is installed, but you may be instructed to remove it later. Attach a
24 + charged 6.0-7.2vdc battery to the connector and turn on the switch. The green LED should light on the board if all is well. If not, quickly
25 + remove the battery pack and double check your work!</font></p></td>
26 + <td align="center" valign="top" ><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/support/rc-servo-mid-position-tutorial/WebHome/smpos00.jpg" border="2" hspace="10" width="320" height="240"><br>
27 + <font size="2" face="verdana">With Battery.<br>
28 + &nbsp;</font></td>
29 + </tr>
30 + <tr>
31 + <td colspan="2">&nbsp;</td>
32 + </tr>
33 + <tr>
34 + <td valign="top" ><font size="2" face="verdana"><b>SSC-32.<br>
35 + </b>To allow custom servo positioning on powerup, the servo controller does not automatically generate pulses.</font>
36 + <p><font size="2" face="verdana">Apply 6-7.2vdc to the VS1 terminal and install the following jumpers: VS=VL, VS1=VS2, Both baud for 115.2k, TX
37 + and RX to enable DB9 port.</font> <font size="2" face="verdana">Connect a DB9 cable from the board to a free serial port.</font></p>
38 + <p><font size="2" face="verdana">You can <a href="https://wiki.lynxmotion.com/info/wiki/lynxmotion/view/ses-software/lynxterm/" target="_blank">download</a> and run
39 + Lynx SSC-32 Terminal. Change the port to your Com port. Click on "All = 1500". Plug a servo into any port with the black wire closest
40 + to the outside of the board. The servo controller will generate these pulses until powered down. Another way is the software method: #0 P1500
41 + &lt;cr&gt;. This will generate pulses on the channel following the "#" only. More information is available in the SSC-32 manual.</font></p>
42 + <p><font size="2" face="verdana">If you are using RIOS-01 or SEQ-01, both programs have this function built in. Consult the users manual for
43 + more information.</font></p></td>
44 + <td align="center" valign="top" ><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/support/rc-servo-mid-position-tutorial/WebHome/smpos06.jpg" border="2" hspace="10" width="320" height="240"><br>
45 + <font size="2" face="verdana">SSC-32.<br>
46 + &nbsp;</font></td>
47 + </tr>
48 + <tr>
49 + <td colspan="2" >&nbsp;<br class="pb">
50 + </td>
51 + </tr>
52 + <tr>
53 + <td valign="top" ><font size="2" face="verdana"><b>Bot Board / BASIC Atom.<br>
54 + </b>Apply 6-7.2vdc to the VS connector and install the VS=VL jumper. Also install the VS jumper for the first four I/O pins. Program the Atom
55 + with the following code to generate the pulses on I/O Pin 0. Plug the servo into I/O Pin 0 with the black wire closest to the outside of the
56 + board.<br>
57 + <blockquote>
58 + <div style="padding: .5em; color: black; line-height: 1.1em; border: 1px solid black;">
59 + <font face="Courier New" size="2">low p0<br>
60 + start:<br>
61 + &nbsp;&nbsp; pulsout p0,1500<br>
62 + &nbsp;&nbsp; pause 20<br>
63 + goto start</font>
64 + </div>
65 + </blockquote>
66 + </font></td>
67 + <td align="center" valign="top" ><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/support/rc-servo-mid-position-tutorial/WebHome/smpos03.jpg" border="2" hspace="10" width="320" height="240"><br>
68 + <font size="2" face="verdana">BASIC Atom.<br>
69 + &nbsp;</font></td>
70 + </tr>
71 + <tr>
72 + <td colspan="2" >&nbsp;</td>
73 + </tr>
74 + <tr>
75 + <td valign="top" ><font size="2" face="verdana"><b>Bot Board / BASIC Atom Pro.<br>
76 + </b>Apply 6-7.2vdc to the VS connector and install the VS=VL jumper. Also install the VS jumper for the first four I/O pins. Program the Atom
77 + with the following code to generate the pulses on I/O Pin 0. Plug the servo into I/O Pin 0 with the black wire closest to the outside of the
78 + board.<br>
79 + <blockquote>
80 + <b>IDE v8.0.1.3+</b>
81 + <div style="padding: .5em; color: black; line-height: 1.1em; border: 1px solid black;">
82 + <font face="Courier New" size="2">enablehservo<br>
83 + &nbsp;&nbsp; hservo [0\0\0]<br>
84 + start:<br>
85 + goto start</font>
86 + </div>
87 + </blockquote>
88 + </font></td>
89 + <td align="center" valign="top" ><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/support/rc-servo-mid-position-tutorial/WebHome/smpos04.jpg" border="2" hspace="10" width="320" height="240"><br>
90 + <font size="2" face="verdana">BASIC Atom Pro.<br>
91 + &nbsp;</font></td>
92 + </tr>
93 + <tr>
94 + <td colspan="2" >&nbsp;</td>
95 + </tr>
96 + <tr>
97 + <td valign="top" ><font size="2" face="verdana"><b>Bot Board / BASIC Stamp 2 / BS2-E.<br>
98 + </b>Apply 6-7.2vdc to the VS connector and install the VS=VL jumper. Also install the VS jumper for the first four I/O pins. Program the BS2
99 + with the following code to generate the pulses on I/O Pin 0. Plug the servo into I/O Pin 0 with the black wire closest to the outside of the
100 + board.<br>
101 + <blockquote>
102 + <div style="padding: .5em; color: black; line-height: 1.1em; border: 1px solid black;">
103 + <font face="Courier New" size="2">start:<br>
104 + &nbsp;&nbsp; pulsout 0,750<br>
105 + &nbsp;&nbsp; pause 20<br>
106 + goto start</font>
107 + </div>
108 + </blockquote>
109 + </font></td>
110 + <td align="center" valign="top" ><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/support/rc-servo-mid-position-tutorial/WebHome/smpos05.jpg" border="2" hspace="10" width="320" height="240"><br>
111 + <font size="2" face="verdana">BASIC Stamp.<br>
112 + &nbsp;</font></td>
113 + </tr>
114 + <tr>
115 + <td colspan="2"><br class="pb">
116 + </td>
117 + </tr>
118 + <tr>
119 + <td valign="top" ><font size="2" face="verdana"><b>SSC-12.<br>
120 + </b>Apply 6-7.2vdc to the red and black wires. If powered correctly, the green LED will illuminate. The pulses are automatically generated. Plug
121 + a servo into any port with the black wire closest to the outside of the board.</font></td>
122 + <td align="center" valign="top" ><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/support/rc-servo-mid-position-tutorial/WebHome/smpos02.jpg" border="2" hspace="10" width="320" height="240"><br>
123 + <font size="2" face="verdana">SSC-12.<br>
124 + &nbsp;</font></td>
125 + </tr>
126 + <tr>
127 + <td colspan="2" >&nbsp;</td>
128 + </tr>
129 + <tr>
130 + <td valign="top" ><font size="2" face="verdana"><b>Mini SSC-II.<br>
131 + </b>Connect a 9vdc battery to the SSC power input and apply 4.8-7.2vdc to the SVO power input. If powered correctly, the green LED will
132 + illuminate. The pulses are automatically generated. Plug a servo into any port with the black wire closest to the outside of the board.</font></td>
133 + <td align="center" valign="top" ><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/support/rc-servo-mid-position-tutorial/WebHome/smpos01.jpg" border="2" hspace="10" width="320" height="240"><br>
134 + <font size="2" face="verdana">Mini SSC-II.&nbsp;<br>
135 + &nbsp;</font></td>
136 + </tr>
137 +</tbody></table>
138 +</body>
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