Lauszus:
I don't understand why you want to calculate the sensitivity like that. Simply just divide the output by the one given in the datasheet: http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00265057.pdf page 10.Also please try to run the example code: https://github.com/jrowberg/i2cdevlib/blob/master/Arduino/L3G4200D/Examples/L3G4200D_raw/L3G4200D_raw.ino and see if it works.
The newest version can be found at Github: GitHub - TKJElectronics/Example-Sketch-for-IMU-including-Kalman-filter: Software for "Guide to gyro and accelerometer with Arduino including Kalman filtering", as I explain in the guide.
Sorry, I wasn't very clear. When I run https://github.com/jrowberg/i2cdevlib/blob/master/Arduino/L3G4200D/Examples/L3G4200D_raw/L3G4200D_raw.ino, it gets values from the gyro fine, but I get the raw output below (with the words 'angular velocity:' removed because the post was too big...):
The values coming from the X-axis are in the first column. When it's at rest they hover around 15 (gyroXZero), when I pick it up and spin it clockwise they go up to >200, when I spin anti-clockwise they also go up to >200 (Min is 0 and Max is 255). Is this what is expected from the raw output?
To convert these values to Degrees Per Second, it seems that I take (gyroXRaw - gyroXZero)/70 (sensitivity from the datasheet).
Sorry for all the questions, I've found a lot of information on google, but I can't seem to find anything to clear this up.
Thanks again.
Initializing I2C devices...
Testing device connections...
L3G4200D connection successful
183 213 32
8 253 19
9 255 23
11 0 26
8 252 17
11 255 24
11 253 16
7 252 20
8 253 17
12 254 17
8 1 18
10 255 17
12 250 19
5 251 19
13 0 22
10 254 19
13 254 18
10 254 18
13 254 15
13 1 25
10 254 20
14 255 17
13 250 20
18 255 21
11 0 19
14 1 14
14 255 16
12 0 17
7 255 19
10 252 19
13 254 18
10 248 14
7 254 15
10 252 20
8 253 19
10 251 14
11 254 18
11 3 19
10 255 12
9 252 18
13 3 20
9 255 18
9 4 24
13 1 18
8 4 17
16 0 16
10 0 22
7 1 12
15 255 16
10 1 21
11 255 23
6 0 19
9 252 23
11 4 15
7 252 20
8 1 20
5 1 20
11 254 15
7 252 16
15 255 15
11 254 18
14 250 20
14 254 20
6 255 25
8 250 21
7 255 22
12 253 23
11 0 14
11 252 20
8 253 24
10 251 16
5 251 18
12 254 20
18 254 18
15 254 24
3 255 22
5 251 15
9 0 18
7 249 20
12 255 22
7 252 21
12 3 19
11 253 22
13 253 17
13 1 15
13 1 21
8 251 16
7 255 16
13 250 23
8 255 16
10 252 18
9 1 20
10 255 17
14 252 18
9 251 13
11 254 19
12 253 22
9 1 15
13 251 19
9 255 20
6 249 16
8 253 17
10 1 24
8 253 18
9 253 16
10 248 22
7 251 21
8 3 21
10 253 19
10 0 23
10 250 19
5 255 19
11 250 20
11 252 26
10 250 19
11 251 12
10 254 15
12 0 18
10 255 23
7 0 21
9 250 22
13 251 16
8 248 22
9 0 18
9 255 24
15 254 17
7 255 25
10 255 19
14 253 19
13 252 25
11 2 17
9 255 18
12 5 21
13 254 20
13 254 17
13 0 20
12 0 20
11 250 25
6 255 16
16 1 17
14 253 19
10 255 19
11 255 19
9 254 24
10 1 17
12 250 18
7 5 13
9 255 21
4 249 20
15 255 15
9 245 16
7 248 18
9 1 17
9 252 21
7 0 16
14 252 17
9 255 18
10 1 20
12 251 17
14 253 19
10 1 17
12 255 13
10 252 14
10 254 16
11 255 17
7 255 21
10 0 21
10 254 21
9 0 20
9 254 16
10 0 15
12 254 13
8 250 16
14 0 11
12 255 16
12 3 19
7 251 25
11 255 18
10 255 22
9 255 15
11 254 19
12 251 17
13 255 18
8 253 19
14 0 17
9 254 19
16 250 19
7 1 20
11 1 17
8 255 20
7 1 16
11 0 15
17 1 19
11 0 22
12 254 20
13 253 17
12 255 17
12 254 28
11 252 21
13 252 20
14 254 18
12 251 18
11 251 22
10 253 18
9 0 23
15 248 20
13 0 15
10 254 20
10 255 19
10 254 18
7 249 21
10 251 21
7 1 23
7 252 15
6 253 19
9 254 18
13 253 18
8 246 21
11 255 14
12 0 13
7 254 22
12 252 20
7 254 20
13 251 18
12 254 13
9 249 17
8 253 20
13 255 20
11 253 17
14 254 21
16 2 19
12 255 15
10 255 17
11 0 20
9 253 17
12 0 21
11 247 16
11 0 22
8 0 15
8 254 17
13 253 20
9 1 14
13 253 17
8 252 19
13 255 18
11 252 23
9 252 18
14 253 16
9 4 24
18 253 25
9 251 18
6 0 18
12 1 21
18 254 17
10 2 19
14 254 17
10 255 24
9 251 18
10 0 16
11 3 18
7 254 24
8 1 16
7 255 18
10 1 16
9 254 20
15 249 20
6 0 14
13 252 23
10 253 18
7 254 20
10 254 19
10 1 19
11 255 20
13 250 17
17 253 15
13 251 18
6 255 19
7 249 15
11 253 16
12 252 16
9 254 18
10 2 19
7 3 23
10 252 19
8 2 12
6 255 17
14 254 15
11 251 16
14 2 14
7 1 22
9 253 17
14 0 17
15 252 16
11 250 21
5 255 16
8 253 18
8 253 25
11 253 18
10 253 13
9 252 15
7 0 20
11 255 19
11 253 21
5 255 16
13 251 15
13 254 19
10 5 9
9 1 17
4 254 15
12 254 11
9 1 17
10 254 19
11 254 22
13 254 16
12 5 20
11 1 20
13 252 21
13 252 18
8 254 22
16 253 20
10 253 22
8 252 17
9 253 15
14 255 17
11 0 14
8 252 14
11 0 17
8 249 20
8 247 17
12 1 20
9 255 21
11 0 26
10 255 22
10 3 15
9 0 18
8 253 17
10 252 14
6 255 15
11 248 21
10 255 25
5 254 20
8 254 17
13 252 21
13 254 17
9 254 17
7 1 23
4 253 20
13 254 20
9 254 18
5 251 21
10 2 17
9 2 21
16 252 16
15 253 16
6 255 15
12 254 20
11 0 19
10 254 17
13 1 19
11 255 17
11 251 21
10 0 19
9 2 21
10 0 21
14 249 18
14 250 16
14 250 18
12 1 14
13 254 16
9 254 16
10 252 19
9 250 13
6 255 17
7 251 16
16 2 23
13 253 20
8 2 20
9 3 22
12 0 27
16 255 94
11 1 120
13 3 104
238 88 101
0 226 240
52 142 52
242 158 234
66 128 179
137 235 17
234 154 7
117 1 152
25 76 231
189 157 44
1 121 104
122 198 127
102 126 232
216 201 119
95 174 108
255 122 49
115 129 78
108 56 218
140 135 143
121 206 161
61 187 0
13 216 107
80 45 51
165 187 158
69 135 29
44 97 142
9 171 119
6 49 157
81 109 232
41 185 148
5 232 242
146 242 217
20 252 146
103 211 101
27 135 253
235 202 30
173 252 118
41 127 59
203 43 63
102 45 105
189 218 142
121 158 213
15 190 44
39 82 34
173 69 128
239 221 38
13 123 193
110 170 216
114 32 34
144 115 36
17 76 104
251 224 5
1 240 197
74 61 36
166 236 64
3 59 236
163 120 138
123 107 236
192 27 0
147 51 196
118 125 191
9 227 224
220 170 24
61 189 61
13 249 96
143 116 131
21 32 56
15 3 44
18 10 40
25 3 52
23 251 148
18 249 88
18 250 64
136 168 78
9 250 170
19 238 162
12 247 52
6 220 15
10 15 19
12 17 16
7 1 20
8 247 20
8 248 23
15 253 16
12 12 18
10 255 17
9 254 18
13 2 19
14 249 17
9 0 18
11 252 16
10 4 18
13 251 14
11 0 18
6 0 20
12 0 24
8 255 17
14 252 22
12 252 20
11 0 21
8 255 19
11 252 19
8 0 14
6 0 19
5 6 19
11 254 16
4 250 207
13 0 25
9 250 26
13 252 25
9 254 20
17 7 40
10 0 246
15 2 245
12 248 18
5 249 25
10 0 20
11 3 35
10 6 251
8 255 62
11 0 75
10 245 95
9 238 47
11 249 18
14 245 23
40 225 47
128 229 66
224 64 96
196 252 72
41 230 164
162 125 48
227 241 27
226 245 249
237 230 232
120 96 120
162 100 67
7 9 241
112 172 13
30 224 140
102 162 244
63 53 56
89 228 166
248 173 152
14 94 190
153 6 96
137 227 199
124 199 77
56 146 228
68 250 158
3 5 135
165 210 67
13 13 78
32 17 225
150 208 168
129 112 69
184 240 152
236 231 29
42 129 193
207 8 32
70 206 85
57 223 14
111 228 242
176 6 141
121 130 167
55 103 163
245 62 71
133 246 243
69 210 46
51 182 4
118 126 223
14 60 213
223 71 224
237 16 252
10 13 11
29 66 20