Tachometer for speed

the simple tachometer for speed. and pin display of maximum speed and average speed. select datafield → connect iq → Tachometer for speed. property setting items. - limit meter 50 or 60 default 50. - thickness ratio 10%-40% default 20%. - needle size 1 to 10 default 5. - show average speed pin checkbox. - show max speed pin checkbox. - levels colour selectable.

---- revision 0.19 added support device edge 550. added support device edge 850. optimized Connect IQ SDK 8.2.3. ---- revision 0.18 added support device edge MTB. optimized Connect IQ SDK 8.2.1. update launch icon. ---- revision 0.17 added support device edge 1050. optimized Connect IQ SDK 7.2.1. ---- revision 0.16 optimized Connect IQ SDK 6.3.0. added property setting thickness ratio. ---- revision 0.15 optimized font size. ---- revision 0.14 optimized font type. added property setting level colours. ---- revision 0.13 added support device edge 540 / 840 solar. optimized Connect IQ SDK 4.2.4. optimized font type. ---- revision 0.12 added support device edge explore 2. ---- revision 0.11 added property setting meter limit 50 or 60. ---- revision 0.10 added property settings. added needle size setting. added show setting average speed pin and max speed pin. ---- revision 0.9 added pin display of maximum speed and average speed. fited the needle size. ---- revision 0.8 optimized text font size. ---- revision 0.7 added support device edge 1040 / edge 1040 solar. leave the buffered bitmap(saved use memory). ---- revision 0.6 update the needle bigger. modify text color for zones. ---- revision 0.4, 0.5 added scale line. ---- revision 0.3 added support device edge 520 plus. ---- revision 0.2 modify datafield name. modify needle design. display units for mile and metric. ----