ug303Part #: UG303. Download. File Size: 1MbKbytes. Page: 28 Pages. Description: EFM32 Tiny Gecko TG11 StarterKit Users Guide. Manufacturer: SiliconUG303: EFM32 Tiny Gecko TG11 Starter Kit User's Guide The SLSTK3301A Starter Kit is an excellent starting point to get familiar with the EFM32™ Tiny Gecko TG11 Microcontroller .