2 Layers PCB 52 x 96.3 mm FR-4, 1.6 mm, 1, HASL with lead, Blue Solder Mask, White silkscreen;A device for women safety, equipped with GSM and GPS modules for location tracking.
4 Layers PCB 60 x 171 mm FR-4, 1.6 mm, 1, HASL lead free, Green Solder Mask, White silkscreen;10.5GHz, 8 element, patch antenna. Make your own phased array for communications or radar. Full instructions at github.com/jonkraft
可以测量直流/交流电压、直流/交流电流,电阻,电感,电容,二极管,频率。内置16bit ADC,数字滤波器,RMS有效值电路和峰值保持电路。 单片机集成的万用表控制单元,官方推出的参考设计套件,纽扣电池供电,含原理图。