The MT3608 Step-up converter (Output voltage higher than input). Supply voltage 2-28V, output max. 28V at max 2A. Avoid the state when the input terminals have higher voltages than those set on the output terminals. The drive chip may be damaged.
The IRFB9N60A is a 600V 9.2A Third Generation HEXFETs from International Rectifier provide the designer with the best combination of fast switching, ruggedized device design, low on-resistance and cost-effectiveness.
This relay module is 5V active low. It is a single channel relay interface board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc.
PIC16F877A Development Learning Board PIC USB Programmable MCU Controller System Core Board Module HJ-5G Experimental Platform Description: PIC16F877A Development Learning