`
   .-------------------- event (1001,1002,...-1000)
   |     .---------------x/y touch
   |    |    .---------- 0/1=un/touched
   |    |   |  |  .----- ignored small events (-1 when 21)
   |    |   |  |  | .--- delta x y (moved) compared to 1st
   V    V   V  V  V V    time [s] between events
---- ---/--- - --- -/-   -------------
1001 123 138 1 [0]                      <--- beg 1st untamed
1002 123 139 1 [0] 0 1  (0.01531910896)
1003 123 140 1 [0] 0 1  (0.02776908874)
1004 123 139 1 [0] 0 1  (0.01628279685)
1005 123 138 1 [0] 0 1  (0.02150797843)
1006 123 139 1 [0] 0 1  (0.01629805564)
1007 123 138 1 [0] 0 1  (0.02665996551)
1008 123 139 1 [0] 0 1  (0.01616621017)
1009 123 140 1 [0] 0 1  (0.02230596542)
1010 123 139 1 [0] 0 1  (0.01875686645)
1011 124 139 1 [0] 1 0  (0.02144408226)
1012 123 139 1 [0] 1 0  (0.01607990264)
1013 123 138 1 [0] 0 1  (0.01588702201)
1014 123 139 1 [0] 0 1  (0.01696300506)
1015 123 140 1 [0] 0 1  (0.08504104614)
1016 123 139 1 [0] 0 1  (0.01670098304)
1017 123 138 1 [0] 0 1  (0.02869606018)
1018 123 139 1 [0] 0 1  (0.01759099960)
1019 123 143 1 [0] 0 4  (0.02132105827) <--- max 4
1020 123 139 1 [0] 0 4  (0.01694297790) <--- max 4
1021 123 138 1 [0] 0 1  (0.04373693466)
1022 123 139 1 [0] 0 1  (0.01703596115)
1023 123 138 1 [0] 0 1  (0.03567790985)
1024 123 139 1 [0] 0 1  (0.01621818542)
1025 123 140 1 [0] 0 1  (0.02796101570)
1026 123 139 1 [0] 0 1  (0.01660084724)
1027 123 138 1 [0] 0 1  (0.02174711227)
1028 123 139 1 [0] 0 1  (0.01654601097)
1029 123 138 1 [0] 0 1  (0.01900291442)
1030 123 139 1 [0] 0 1  (0.01687908172)
1031 123 137 1 [0] 0 2  (0.03798103332)
1032 123 139 1 [0] 0 2  (0.01607990264)
1033 123 138 1 [0] 0 1  (0.01726007461)
1034 123 139 1 [0] 0 1  (0.01693391799)
1035 123 140 1 [0] 0 1  (0.02277493476)
1036 123 139 1 [0] 0 1  (0.01781010627)
1037 123 138 1 [0] 0 1  (0.03011298179)
1038 123 139 1 [0] 0 1  (0.01818299293)
1039 123 138 1 [0] 0 1  (0.02060008049)
1040 123 139 1 [0] 0 1  (0.01865196228)
1041 123 140 1 [0] 0 1  (0.01846098899)
1042 123 140 0 [0] 0 0  (0.01568007469) <--- end 1st untamed 0/+2  <---u1
11 :untamed: 41  events, 0.91629600524 s,  45 /s, 48 moved

1043 130 141 1 [0]                       | 1st tamed beg
1044 129 140 1 [21] 1 1  (0.36120200157) |
1045 128 141 1 [21] 1 1  (0.30423212051) |
1046 128 143 0 [17] 0 2  (0.34888005256) | ...end --------- -2/+2  <--- t1
12 :  tamed: 3  events, 1.01089406013 s,  3 /s, 6 moved

1047 127 147 1 [0]                      <--- beg 2nd untamed
1048 128 145 1 [0] 1 2  (0.01464605331)
1049 128 144 1 [0] 0 1  (0.02041387557)
...
1061 127 145 1 [0] 1 0  (0.01671099662)
1062 127 142 1 [0] 0 3  (0.01643610000) <--- max 3
1063 127 145 1 [0] 0 3  (0.01597404479) <--- max 3
1064 127 144 1 [0] 0 1  (0.01821804046)
1099 124 148 1 [0] 0 1  (0.01611399650)
1100 124 148 0 [0] 0 0  (0.01936197280) <--- end 2nd untamed -3/+1  <---u2
13 :untamed: 53  events, 0.99068808555 s,  54 /s, 64 moved

1101 120 153 1 [0]                       | 2nd tamed beg...
1102 120 155 1 [21] 0 2  (0.33901095390) |
1103 120 153 1 [21] 0 2  (0.35639715194) |
1104 119 155 0 [8] 1 2  (0.22670388221)  | ...end -------- -1/+2  <--- t2
14 :  tamed: 3  events, 0.91868901252 s,  4 /s, 7 moved

1105 118 158 1 [0]                      <--- beg 3rd untamed
1106 118 157 1 [0] 0 1  (0.01460504531)
1107 119 156 1 [0] 1 1  (0.01930594444)
...
1138 116 160 1 [0] 0 1  (0.01970911026)
1139 116 160 0 [0] 0 0  (0.01907181739) <--- end 3rd untamed -2/+2  <--- u3
15 :untamed: 34  events, 0.74815177917 s,  46 /s, 40 moved

1140 117 162 1 [0]                       | 3rd tamed beg...
1141 117 161 1 [21] 0 1  (0.31535387039) |
1142 116 161 1 [21] 1 0  (0.41444993019) |
1143 116 161 0 [6] 0 0  (0.15343713760)  | ...end -------- -1/-1  <--- t3
16 :  tamed: 3  events, 0.87734198570 s,  4 /s, 2 moved
`

`
1001 59 196 1 [0]                       begin UNTAMED RED
1002 57 197 1 [0] 2 1  (0.01512312889)  upside down
1003 55 197 1 [0] 2 0  (0.01950287818)  check mark
1004 55 194 1 [0] 0 3  (0.01612114906)
1005 55 193 1 [0] 0 1  (0.01827287673)
1006 56 190 1 [0] 1 3  (0.01632499694)
1007 57 186 1 [0] 1 4  (0.01704096794)
1008 61 182 1 [0] 4 4  (0.01617503166)
1009 66 175 1 [0] 5 7  (0.02005600929)
1010 75 165 1 [0] 9 10  (0.01708793640)
1011 86 156 1 [0] 11 9  (0.01607298851)
1012 98 145 1 [0] 12 11  (0.01709699630)
1013 115 131 1 [0] 17 14  (0.01613712310)
1014 134 112 1 [0] 19 19  (0.01635384559)
1015 160 90 1 [0] 26 22  (0.01998305320)
1016 177 78 1 [0] 17 12  (0.01613402366)
1017 190 70 1 [0] 13 8  (0.01719713211)
1018 204 62 1 [0] 14 8  (0.01616096496)
1019 217 56 1 [0] 13 6  (0.01603198051)
1020 229 50 1 [0] 12 6  (0.01743888854)
1021 238 47 1 [0] 9 3  (0.01877903938)
1022 244 45 1 [0] 6 2  (0.01696610450)
1023 246 45 1 [0] 2 0  (0.01629400253)
1024 247 46 1 [0] 1 1  (0.01608395576)
1025 248 46 1 [0] 1 0  (0.01956200599)
1026 249 44 1 [0] 1 2  (0.01642799377)
1027 254 44 1 [0] 5 0  (0.01932406425)
1028 258 42 1 [0] 4 2  (0.01667499542)
1029 260 41 1 [0] 2 1  (0.01617789268)
1030 260 42 1 [0] 0 1  (0.02322602272)
1031 258 43 1 [0] 2 1  (0.01620888710)
1032 258 44 1 [0] 0 1  (0.01910519599)
1033 258 45 1 [0] 0 1  (0.01725888252)
1034 259 45 1 [0] 1 0  (0.03020906448)
1035 259 47 1 [0] 0 2  (0.01701593399)
1036 260 50 1 [0] 1 3  (0.01616191864)
1037 261 57 1 [0] 1 7  (0.01844120025)
1038 261 73 1 [0] 0 16  (0.01854395866)
1039 260 94 1 [0] 1 21  (0.01632189750)
1040 263 109 1 [0] 3 15  (0.01701998710)
1041 265 116 1 [0] 2 7  (0.01608514785)
1042 268 119 1 [0] 3 3  (0.01693892478)
1043 268 120 1 [0] 0 1  (0.01875090599)
1044 267 119 1 [0] 1 1  (0.02097105979)
1045 266 118 1 [0] 1 1  (0.01707911491)
1046 264 117 1 [0] 2 1  (0.01605200767)
1047 264 116 1 [0] 0 1  (0.01638793945)
1048 264 117 1 [0] 0 1  (0.01697802543)
1049 264 117 0 [0] 0 0  (0.01828384399)  untamed RED checkm
11 :untamed: 48  events, 0.84429478645 s,  57 /s, 470 moved

1050 61 197 1 [0]                        begin TAMED BLUE
1051 61 190 1 [3] 0 7  (0.05082583427)   upside down
1052 62 185 1 [3] 1 5  (0.04750108718)   check mark
1053 64 180 1 [1] 2 5  (0.02709603309)
1054 68 175 1 [0] 4 5  (0.01733803749)
1055 74 168 1 [0] 6 7  (0.01696085929)
1056 87 155 1 [0] 13 13  (0.02001500129)
1057 100 144 1 [0] 13 11  (0.01653599739)
1058 111 135 1 [0] 11 9  (0.01768112182)
1059 125 123 1 [0] 14 12  (0.01666188240)
1060 140 110 1 [0] 15 13  (0.01653194427)
1061 156 94 1 [0] 16 16  (0.01888704299)
1062 174 79 1 [0] 18 15  (0.01819205284)
1063 184 71 1 [0] 10 8  (0.01687598228)
1064 193 64 1 [0] 9 7  (0.01771306991)
1065 201 58 1 [0] 8 6  (0.01656508445)
1066 208 54 1 [0] 7 4  (0.01750588417)
1067 216 50 1 [0] 8 4  (0.01926302909)
1068 224 46 1 [0] 8 4  (0.01821804046)
1069 230 43 1 [0] 6 3  (0.01770401000)
1070 235 41 1 [0] 5 2  (0.01691102981)
1071 242 38 1 [1] 7 3  (0.02646493911)
1072 247 36 1 [0] 5 2  (0.01718306541)
1073 252 35 1 [0] 5 1  (0.01996779441)
1074 257 33 1 [5] 5 2  (0.07298803329)
1075 262 30 1 [0] 5 3  (0.01898598670)
1076 268 29 1 [1] 6 1  (0.02689409255)
1077 265 35 1 [3] 3 6  (0.04518604278)
1078 269 40 1 [9] 4 5  (0.10440492630)
1079 268 47 1 [0] 1 7  (0.01691412925)
1080 267 64 1 [0] 1 17  (0.02047991752)
1081 268 79 1 [0] 1 15  (0.01711487770)
1082 271 93 1 [0] 3 14  (0.01757311820)
1083 274 101 1 [0] 3 8  (0.01681995391)
1084 275 106 1 [0] 1 5  (0.01686906814)
1085 273 103 0 [11] 2 3  (0.13009786605) tamed BLUE checkm
12 :  tamed: 35  events, 0.98949193954 s,  36 /s, 474 moved

1086 161 70 1 [0]                        begin untamed
1087 159 69 1 [0] 2 1  (0.01593708992)   RED cirle
1088 158 67 1 [0] 1 2  (0.01636791229)
1089 157 66 1 [0] 1 1  (0.01783299446)
1090 156 64 1 [0] 1 2  (0.01820111274)
1091 156 63 1 [0] 0 1  (0.01610183715)
1092 155 62 1 [0] 1 1  (0.01657795906)
1093 154 62 1 [0] 1 0  (0.01658010482)
1094 150 62 1 [0] 4 0  (0.01608800888)
1095 146 64 1 [0] 4 2  (0.01885795593)
1096 140 67 1 [0] 6 3  (0.01732802391)
1097 134 71 1 [0] 6 4  (0.01631402969)
1098 128 78 1 [0] 6 7  (0.01684999465)
1099 121 80 1 [0] 7 2  (0.01598501205)
1100 117 83 1 [0] 4 3  (0.01633596420)
1101 114 86 1 [0] 3 3  (0.01915812492)
1102 113 90 1 [0] 1 4  (0.01782393455)
1103 112 94 1 [0] 1 4  (0.01709294319)
1104 111 102 1 [0] 1 8  (0.01635789871)
1105 109 108 1 [0] 2 6  (0.01605820655)
1106 108 115 1 [0] 1 7  (0.01703882217)
1107 108 122 1 [0] 0 7  (0.01815819740)
1108 108 129 1 [0] 0 7  (0.01740598678)
1109 110 136 1 [0] 2 7  (0.01701498031)
1110 111 143 1 [0] 1 7  (0.01631879806)
1111 112 151 1 [0] 1 8  (0.01605916023)
1112 115 158 1 [0] 3 7  (0.01695394515)
1113 119 164 1 [0] 4 6  (0.01779890060)
1114 124 170 1 [0] 5 6  (0.01822113990)
1115 130 176 1 [0] 6 6  (0.01634788513)
1116 136 183 1 [0] 6 7  (0.01609802246)
1117 142 191 1 [0] 6 8  (0.01691007614)
1118 150 196 1 [0] 8 5  (0.01715803146)
1119 157 198 1 [0] 7 2  (0.01749205589)
1120 166 195 1 [0] 9 3  (0.01826786994)
1121 173 192 1 [0] 7 3  (0.01626706123)
1122 180 190 1 [0] 7 2  (0.01635694503)
1123 187 187 1 [0] 7 3  (0.01671504974)
1124 192 184 1 [0] 5 3  (0.01644492149)
1125 198 180 1 [0] 6 4  (0.01690506935)
1126 206 174 1 [0] 8 6  (0.01903700828)
1127 212 168 1 [0] 6 6  (0.01624393463)
1128 217 162 1 [0] 5 6  (0.01696896553)
1129 220 156 1 [0] 3 6  (0.01612997055)
1130 223 149 1 [0] 3 7  (0.01671600341)
1131 226 141 1 [0] 3 8  (0.01684617996)
1132 229 132 1 [0] 3 9  (0.01897192001)
1133 230 124 1 [0] 1 8  (0.01772308349)
1134 230 118 1 [0] 0 6  (0.01614284515)
1135 228 114 1 [0] 2 4  (0.01617097854)
1136 223 110 1 [0] 5 4  (0.01957106590)
1137 219 105 1 [0] 4 5  (0.01843714714)
1138 216 100 1 [0] 3 5  (0.01747083663)
1139 212 95 1 [0] 4 5  (0.01635599136)
1140 208 89 1 [0] 4 6  (0.01606893539)
1141 204 86 1 [0] 4 3  (0.01695823669)
1142 199 84 1 [0] 5 2  (0.01647496223)
1143 194 81 1 [0] 5 3  (0.01931595802)
1144 188 78 1 [0] 6 3  (0.01670885086)
1145 183 73 1 [0] 5 5  (0.01623415946)
1146 178 67 1 [0] 5 6  (0.01689887046)
1147 173 64 1 [0] 5 3  (0.01613903045)
1148 167 64 1 [0] 6 0  (0.01708102226)
1149 162 66 1 [0] 5 2  (0.01948404312)
1150 158 69 1 [0] 4 3  (0.01650595664)
1151 157 72 1 [0] 1 3  (0.01624393463)
1152 157 72 0 [0] 0 0  (0.01677703857)  untamed RED circle
13 :untamed: 66  events, 1.12202405929 s,  59 /s, 534 moved

1153 182 70 1 [0]                       begin tamed
1154 181 65 1 [2] 1 5  (0.03417015075)  BLUE circle
1155 180 59 1 [1] 1 6  (0.02991580963)
1156 175 56 1 [1] 5 3  (0.02599906921)
1157 169 56 1 [0] 6 0  (0.01737499237)
1158 161 59 1 [0] 8 3  (0.01728916168)
1159 154 60 1 [0] 7 1  (0.01943087577)
1160 149 63 1 [0] 5 3  (0.01761007308)
1161 144 65 1 [0] 5 2  (0.01659893989)
1162 139 67 1 [0] 5 2  (0.01779794692)
1163 134 72 1 [0] 5 5  (0.01669001579)
1164 129 76 1 [0] 5 4  (0.01654696464)
1165 124 82 1 [0] 5 6  (0.01986718177)
1166 118 89 1 [0] 6 7  (0.01687693595)
1167 113 95 1 [0] 5 6  (0.01659297943)
1168 111 101 1 [0] 2 6  (0.01869797706)
1169 109 106 1 [0] 2 5  (0.01680207252)
1170 111 111 1 [0] 2 5  (0.01778697967)
1171 110 123 1 [0] 1 12  (0.01932191848)
1172 109 137 1 [0] 1 14  (0.01761507987)
1173 109 153 1 [0] 0 16  (0.01782703399)
1174 110 168 1 [0] 1 15  (0.01684594154)
1175 114 177 1 [0] 4 9  (0.01769590377)
1176 119 184 1 [0] 5 7  (0.01686215400)
1177 128 189 1 [0] 9 5  (0.02009797096)
1178 137 191 1 [0] 9 2  (0.01672887802)
1179 148 190 1 [0] 11 1  (0.01701307296)
1180 160 188 1 [0] 12 2  (0.01745605468)
1181 170 186 1 [0] 10 2  (0.01667189598)
1182 179 184 1 [0] 9 2  (0.01680994033)
1183 191 179 1 [0] 12 5  (0.02048301696)
1184 201 175 1 [0] 10 4  (0.01663899421)
1185 209 170 1 [0] 8 5  (0.01791810989)
1186 215 165 1 [0] 6 5  (0.01673603057)
1187 220 160 1 [0] 5 5  (0.01738190650)
1188 223 153 1 [0] 3 7  (0.02028107643)
1189 225 145 1 [0] 2 8  (0.01712489128)
1190 226 135 1 [0] 1 10  (0.01786208152)
1191 226 124 1 [0] 0 11  (0.01697206497)
1192 224 116 1 [0] 2 8  (0.01681399345)
1193 223 109 1 [0] 1 7  (0.01784205436)
1194 220 103 1 [0] 3 6  (0.01916480064)
1195 216 95 1 [0] 4 8  (0.01699018478)
1196 212 89 1 [0] 4 6  (0.01809096336)
1197 209 84 1 [0] 3 5  (0.01679587364)
1198 202 78 1 [1] 7 6  (0.02666711807)
1199 196 74 1 [0] 6 4  (0.01917505264)
1200 187 71 1 [0] 9 3  (0.02043294906)
1201 179 73 1 [0] 8 2  (0.01711487770)
1202 172 69 1 [0] 7 4  (0.01728105545)
1203 164 70 1 [0] 8 1  (0.01673698425)
1204 158 68 1 [0] 6 2  (0.01676702499)
1205 151 66 1 [0] 7 2  (0.01997590065)
1206 145 66 1 [0] 6 0  (0.01705002784)
1207 140 67 1 [1] 5 1  (0.02669501304)
1208 145 69 1 [2] 5 2  (0.03549313545)
1209 145 69 0 [0] 0 0  (0.01866602897)  tamed BLUE circle
14 :  tamed: 56  events, 1.06269502639 s,  53 /s, 568 moved

1210 153 126 1 [0]                       begin RED hover /
1211 153 125 1 [0] 0 1  (0.01460194587)  point (no move)
1212 153 126 1 [0] 0 1  (0.02797102928)
1213 153 124 1 [0] 0 2  (0.01610517501)
1214 152 125 1 [0] 1 1  (0.01820588111)
1215 152 122 1 [0] 0 3  (0.01941895484)
1216 153 126 1 [0] 1 4  (0.01618409156)
1217 153 127 1 [0] 0 1  (0.02172493934)
1218 153 128 1 [0] 0 1  (0.03227305412)
1219 153 127 1 [0] 0 1  (0.01700901985)
1220 152 127 1 [0] 1 0  (0.02249693870)
1221 153 127 1 [0] 1 0  (0.01769590377)
1222 153 128 1 [0] 0 1  (0.04150915145)
1223 152 128 1 [0] 1 0  (0.01670289039)
1224 152 129 1 [0] 0 1  (0.01865696907)
1225 152 128 1 [0] 0 1  (0.01712203025)
1226 152 127 1 [0] 0 1  (0.03233408927)
1227 152 128 1 [0] 0 1  (0.01674294471)
1228 152 129 1 [0] 0 1  (0.02026009559)
1229 152 128 1 [0] 0 1  (0.01976704597)
1230 152 129 1 [0] 0 1  (0.01916193962)
1231 153 128 1 [0] 1 1  (0.01724600791)
1232 153 128 0 [0] 0 0  (0.01590394973) RED hover / point
15 :untamed: 22  events, 0.45567607879 s,  49 /s, 30 moved

1233 155 129 1 [0]                       Begin BLUE hover /
1234 154 129 1 [21] 1 0  (0.44625902175) point 
1235 155 130 0 [9] 1 1  (0.19742083549)  BLUE hover / point
16 :  tamed: 2  events, 0.64026784896 s,  4 /s, 3 moved
>rn=0
=0
> 
`

// touchTamerExploration.js
// v20250201_ao
//
// E.on("touch",...); delivers A LOT of event due to jitter
// due to the nature of touch screen being resistive. This
// code cuts back to forward only essential calls and with
// that calming downt the touch and prevent overloading by
// ui processing.
var rn = 1; // run (rn = 0; in console will stop nicely and draw moves on display)
function tameTest(cd,ic) {
  cd=(cd==undefined)? 5:cd; // ignorable change <---- small change conditionally ignored
  ic=(ic==undefined)?20:ic; // ignore overflow  <---- ingore only ic small changes
var cu = []   // coords untamed
  , ct = []   // coords tamed
  , cc = []   // coords collector / work storage
  , el = 1000 // event line #
  , sl = 10   // summary line #
  , ma = 0    // measuring deactivated (using ID returned from setInterval()
  , t0 = 0    // time 1st touch in measuring interval
  , t1 = 0    // time last untouch in measuring interval (if no spanning touch)
  , ec = 0    // event count
  , md = 0    // dragged distance
  , ta = 0    // tamer deactived
  , tl = {x:0,y:0,b:0,c:0,t:getTime()} // last touch
  , t8 = getTime()-10 // to get 'low absolute' time numbers
  , mi = 2000 // ms measuring interval (3000 when drawing)
  , ot = 300  // ms inot mi LED1 turns on
  , st = 1000 // ms 'safety' time LED1 off in; must: ot+(mi-st)<mi
  , th=E.on("touch",(t)=>{ // listen to touch
      t.xd=Math.abs(t.x-tl.x); t.yd=Math.abs(t.y-tl.y);
      if (ta) { 
      if (t.b==tl.b) {              // no change in touch/untouch state
        if (t.xd<cd && t.yd<cd) {   // small change in coord state
          if (t.xd+t.yd>0) tl.c++;  // count small change
          if (tl.c<=ic) return;     // ignore ic small changes
      } } }
      if (ma) { // measuring and recording /intervals activ(ated)
        // handle change large and small
        t.c=0; t.t=getTime();
        if (ec) {
          print(++el,t.x,t.y,t.b,"["+tl.c+"]", t.xd, t.yd, " ("+(t.t-tl.t)+")");
          md+=t.xd+t.yd; // moved (drag distance)
        } else {
          print(++el, t.x,t.y,t.b,"["+tl.c+"]");
          t0=getTime();
        }
        tl=t;            // last touch
        cc.push(t.x); cc.push(t.y); // record
        ec++;            // count event
      } else { // measuring not (yet) activated: activate
        cc=(ta)?ct:cu;   // set initial collector
        LED1.set(); setTimeout(()=>LED1.reset(),mi-st); // signal timing
        ma=setInterval(()=>{ // starts measuring and its intervalls
          // signal times / interval:  w/ backlite off-on, LED1-on-off
          analogWrite(cydIni.C.bl,0.1,{freq:100});
          setTimeout(()=>{ analogWrite(cydIni.C.bl,0.9,{freq:100}); },50);
          setTimeout(()=>{LED1.set(); setTimeout(()=>LED1.reset(),mi-st);},ot);
          if (ec) {
            t1=tl.t-t0;
            print( ++sl, (ta)?":  tamed:":":untamed:"
                 , ec-1, " events,", t1, "s, ",Math.ceil((ec-1)/t1), "/s,"
                 , md, "moved"); print("");
          }
          cc.push(-1); cc.push(t.b); // mark end of drawing / interval
          ta=!ta;        // flip taming/not taming
          cc=(ta)?ct:cu; // record tamed/not tamed
          ec=0;          // rest event count
          md=0;          // reset moved (drag distance)
          t0=0;          // reset to take time on 1st touch in interval
          if (!rn) {     // stopped? (not running (anymore)): now draw records
            cc = cu; ec = 2; g.setColor(1,0,0); while (ec<cc.length) {
              g.drawLine(cc[ec-2],cc[ec-1],cc[ec++],cc[ec++]);
              if (cc[ec]<0) { ec+=4; } }
            cc = ct; ec = 2; g.setColor(0,0,1); while (ec<cc.length) {
              g.drawLine(cc[ec-2],cc[ec-1],cc[ec++],cc[ec++]);
              if (cc[ec]<0) { ec+=4; } }
            cc=[];cu=[];ct=[]; ec=0;
         }
        },2000);
      }
    });
}
function cydIni(callback, bl, spi, ce, dc, rst) {
  // derived from espruino.com/ILI9341.js module
  var C=
    { callback:callback||undefined
      // CYD ESP32-2432S028 board specifics for ILI9341 LCD Display / controller
    , bl : bl || D21 // backlit (PWM)
    , spi: spi||SPI1 // SPI
    , ce : ce || D15 // Chip Enable
    , dc : dc ||  D2 // Data/Command
    , rst: rst||undefined // hardwired to board rst (reset) button (no sw reset)
    };
  cydIni.C = C; // hold on to running config
  let wCMD=(d)  =>{ C.ce.write(0); C.spi.write(d,C.dc); };
  let wCD =(c,d)=>{ C.ce.write(0); C.spi.write(c,C.dc); C.spi.send(d); C.ce.write(1); };
  C.ce.write(1);
  C.dc.write(1);
  if (C.rst) C.rst.write(0);
  setTimeout(function(){
    if (C.rst) C.rst.write(1);
    setTimeout(function(){
      wCMD(0x01);
      setTimeout(function(){
        wCMD(0x28); C.ce.write(1);
        wCD(0xCF,[0x00,0x83,0x30]);
        wCD(0xED,[0x64,0x03,0x12,0x81]);
        wCD(0xE8 ,[0x85,0x01,0x79]);
        wCD(0xCB,[0x39,0x2C,0x00,0x34,0x02]);
        wCD(0xF7,0x20);
        wCD(0xEA,[0x00,0x00]);
        wCD(0xC0,0x26);
        wCD(0xC1,0x11);
        wCD(0xC5,[0x35,0x3E]);
        wCD(0xC7,0xBE);
//      wCD(0x36,0x48);
//      wCD(0x36,0x60); // portrait  RGB
        wCD(0x36,0x00); // landscape RGB compatible default (no rotatiom)
        wCD(0x3A,0x55);
        wCD(0xB1,[0x00,0x1B]);
        wCD(0xF2,0x08);
        wCD(0x26,0x01);
        wCD(0xE0,[0x1F,0x1A,0x18,0x0A,0x0F,0x06,0x45,0x87,0x32,0x0A,0x07,0x02,0x07,0x05,0x00]);
        wCD(0xE1,[0x00,0x25,0x27,0x05,0x10,0x09,0x3A,0x78,0x4D,0x05,0x18,0x0D,0x38,0x3A,0x1F]);
        wCD(0xB7,0x07);
        wCD(0xB6,[0x0A,0x82,0x27,0x00]);
        wCMD(0x11); C.ce.write(1);
        setTimeout(()=>{
          wCMD(0x29); C.ce.write(1);
          setTimeout(()=>{
            g.clear();
            if (C.callback !== undefined) C.callback();
          },100);
        },100);
      },5);
    },5);
  },1);
}

function onInit() {
  cydIni(tameTest);
}

setTimeout(onInit,555);

    // setup touch screen and connect it to ui
    SPI1.setup({sck:A5, miso:A6, mosi:A7, baud: 2000000});
                           // spi, cs, irq, callback, calc (calibrated)
    touch = touchMod.connect(SPI1, A3,  A2, function(x,y){ ui.evt(x,y);}
        , function(yr, xr, d) {
            return [ Math.round(xr / -121.44          + 259.70685111989)
                   , Math.round(yr /   88.90357142857 + -19.78130398103)
                   ];
    }).listen();

// ESP32_CYD_touch_grid_test.js
function drawGridLines(gridX, gridY) {
      var xm = g.getWidth()-1, ym = g.getHeight()-1, x, y;
      // h-lines
      for (y = gridY; y < ym; y += gridY)
          g.drawLine(0, y, xm, y);
      // v-lines
      for (x = gridX; x < xm; x += gridX)
          g.drawLine(x, 0, x, ym);
}

var gridX = 20 ,gridY = 20;
g.clear(); 
drawGridLines(gridX,gridY);
grid = new Array(g.getWidth()/gridX).fill(new Array(g.getHeight()/gridY).fill(0));

var tl = {x:0,y:0,b:0,c:0,t:getTime()}, cd = 5, ic = 20;

E.on("touch",(t)=>{
      t.xd=Math.abs(t.x-tl.x); t.yd=Math.abs(t.y-tl.y);
      if (t.b==tl.b) {              // no change in touch/untouch state
            if (t.xd<cd && t.yd<cd) {   // small change in coord state
            if (t.xd+t.yd>0) 
                  tl.c++;  // count small change
            if (tl.c<=ic)
                  return;     // ignore ic small changes
      } else
           xg = (t.x / gridX)|0;
           yg = (t.y / gridY)|0;
           //print(xg,yg);
           c = (grid[xg][yg] == 0) ? "#fff" : "#000";
           grid[xg][yg] = +!grid[xg][yg];
           x = xg * gridX;
           y = yg * gridY;
           g.setColor(c).fillRect(x+1,y+1,x+gridX-1,y+gridY-1);
      }
});