Witty User Manual - EN - v1.5 P. 167 / 171
7.3 WITTY·SEM
• High luminosity front matrix 5 x 7 LED RGB, visible area 42 x 60 mm
• High luminosity rear lines 2 x 5 LED RGB
• Proximity sensor
• Ambient light sensor
Multi-Frequency Transceiver 433 – 434 MHz
Digital FSK transmission; redundant code with information correctness
verification and auto-correction
433.1125 MHz to 434.790 MHz
Impulse transmission accuracy
8 MHz quartz, stability ±10ppm between 0° and +45°C
Internal lithium ion polymer battery, external power supply 5VDC
Integrated intelligent charging device
• MICRO USB type B connector for charging and connecting to a PC
• Jack connector 3.5 mm 3-pole / stereo for photocell, StartPad,
button connection etc.